Reengineering the Redcat Ascent Fusion!

We recently looked at the new Redcat Racing Ascent Fusion RTR RC crawler ( • I Test the Redcat Asce... ). While quite capable, I felt it was about at its performance limit when compared to other vehicles in its class.
I found the front end of the chassis quite busy. The rear end doesn't meet WRCCA comp ruleset standards, the tires have a LOT of sideways play, and the geometry up front just isn't quite right - there's even a little bump steer!
One issue with all this modifying this vehicle is challenging: you already have a good, strong servo, an FOC brushless system, carbon-fiber chassis rails, and a nice, lightweight body. So what do you do to address its shortcomings?
Well, I've spent a week on this and wanted to bring you a path to addressing the issues with as little pain and extra hardware as possible. Let me show you what I've done!
--
Find the upgrade parts here: rc-tnt.com/pro...
Full res photos here of mine to help you with your install: photos.app.goo...
If you have trouble printing my SOA mount, there's a better SOA option than my Shapeways one. Check this out: 1tenth.com (for regular Ascent; they're working on one for the Fusion axle as of mid July 2024. Watch their site/socials for updates)
Enjoy!
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Articles:
What's the Best RC Car? rc-tnt.com/gui...
Best RC Crawler? rc-tnt.com/man...
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WHERE TO BUY RC STUFF:
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community.give...
#rccrawling, #rcreview, #rcascentfusion, #redcatracing, #redcatnation

[@jessefields3459]

I would love the servo mount and motor mount. I got the fusion and want to 4 link it but have no way to print these.

[@RCTNT]

Hit up your local FB crawling group, forums, or whatever near you. There'll be someone who can help you locally, hopefully.

[@jessefields3459]

@@RCTNT I flipped the motor plate and it all clears for 4 links

[@RCTNT]

Really? Huh. I wonder how I missed that. Nice job!

[@jessefields3459]

@RCTNT I was wondering how no one had figured it out. I would show you if I could post a pic.

[@RCTNT]

I had mine in pieces and definitely tried it, but I've overlooked something evidently. It was a lot more effort to design this, so I definitely tried that first. I just can't recall more about it. You've got full, unhindered movement at all articulations? No drive shaft rubbing on the motor, etc etc? If it's clear and works, well done! Seriously!

[@timsheldon6367]

Craig, THANK YOU! I've just spent 2 days assembling your full conversion kit and all I can say is WOW! Such an impressive result. The rear suspension is a masterpiece and the motor plate is an amazing work of art. As I was building it, at each step along the way, I was remained of your comments about the VS4-10 design, I could really tell there is a ton of heart and soul poured into your designs and it all works beautifully! Cannot thank you enough for sharing this with the RC community. You are an amazing person! Thank you, thank you!

[@RCTNT]

Aw thanks a lot, Tim! I really appreciate your taking the time to leave that thoughtful comment. I'm so glad you're enjoying the thing!

[@TheAmerican1963]

To those who purchase the Fusion recently, I received mine on 11/22 and upon checking the front axles to make sure they are tight as well as front pinion screw, I found that they did away with axle allen sets and the pinion screw DEFINITELY has threadlocker on it. Great video and this is why I pulled the trigger on this car. I am a beginner and you proved to me that as I gain experience this is a wonderful start. Having two dedicated "trailers", this car is simply amazing to me. Tires, wheels, roof rack and rear box with headache rack are on the way. Thank you again for the education .......... 🙂

[@RCTNT]

Great info, thank you! Enjoy your latest acquisition!

[@ryanmartin7394]

Where did you order most your accessories from? Mine shows up in a few days and i want to make the rear if the truck a little more scale!

[@squishinstix]

Same here - took delivery two weeks ago and just finished these mods today. Designed the motor mount from scratch to print flat and be much thicker, servo mount has 3 M3 bolts holding it (front shocks mounts on axle), and some tweaks to the bearing bushings as well. Incredible upgrades!

[@ch-vs3fw]

Wow, THANK YOU for all your time, energy, creativity, and generosity!!

[@RCTNT]

My pleasure! (Wait until you see what I'm releasing a couple of videos from now!)

[@1980VINZ]

I’m speechless. Your development of the car is FANTASTIC, you completely transform this beauty into a real competitor… And you took the time to resume everything on your website very carefully and you share everything for free… What can we say except BIG THANK YOU MATE YOU’RE THE MAN. Very generous, you make the hobby becoming even greater !!!!! I just hope the brand will respect your work how it should be, and not just pick up everything to improve their product without any words or whatsoever… Nothing surprises me anymore by these days… I wish I’m just saying BS. What a rig now !!!!! LOVING IT and looks even better… REDCAT should make a special version under your name like “Ascent TNT Evo Special Edition” or something and giving you a pourcentage on the sells, I’m sure this will be a big hit and a very very cool move from REDCAT !! Why not ?? 😃 Because actually everyone is agree to say it looks good but isn’t a good performer………. 🤞

[@RCTNT]

Haha thanks, that's very kind. I wouldn't mind seeing an Acsent Fusion RC-TNT Comp Day edition or something, sure. That would be really cool. Glad you like it! Cheers

[@dustygrady2468]

CC c😢😢cccf😢😢😢😢c😢😢😢c😢😢😢c😢😢😢c😢😢cc😢c😢c😢

[@brentlykins7281]

Absolutely love your mods to this rig. Wow is all I can say at this point. I don’t have this rig but your solutions to its issues are really good 👍🏻! Thank you so much for your effort and dedication to this hobby. Plus you share these mods for free…. 😮🙏🏻👏🏻. I really like your approach and on camera delivery as well.

[@RCTNT]

It's my pleasure and privilege to be part of such a great community 😊

[@Andy_Yates]

It looks SO much better with that rear tray. Bravo getting that geometry sorted and designing a good servo mount. Very creative way to keep it a forward motor mount and allow for the front 4-link. You should feel proud that you're breathing more life and performance into that truck 👏👏

[@RCTNT]

Thanks Andy, it both needed and deserved it, I think. Very happy with the outcome, obviously - I really only wanted WRCCA compliance, but once I'd started, I kept thinking how I'd like to fix this and that. Anyway, it's at a good version 1 point now. I'm taking a breather from it until I stop dreaming about Ascent geometry and cantilever angles!

[@BrettB-n1s]

Really nice work! I also enjoy your diy ethic, so much more interesting and educational to make your own solutions when possible. AND for free to us! I (we all) appreciate you!

[@RCTNT]

Thank you. It's my pleasure!

[@cybron7089]

Wow. I dont own an Ascent Fusion, but i acknowledge the great amount of fantastic work you put into it 👍

[@Bonurges]

Yes! Indeed!!!! Gosh mate what a great set of mods you’ve designed!!! I’ve said before and WILL say it again, I really appreciate your thorough and detailed testing and reviews.

[@RCTNT]

Thank you for the appreciation!

[@HellaNorCal916]

Wow! 🤯 That looks amazing. The better geometry and articulation actually comes through the video fairly well. 👍🏼

[@RCTNT]

It definitely shows on the rocks. Just so effortless. I think I might still tune those inserts a bit, they're still a tad too firm, but on the whole, yes. Very happy with it!

[@YoShImUrA53]

This channel is the gift that keeps on giving!! Thanks for all the parts, Craig!!

[@RCTNT]

My pleasure! This was a capital-P Project, and there will possibly be minor updates and tweaks soon, but I really wanted to just get it out there. Seeing the rig just eat the rocks now was so satisfying :D

[@canuckchuck8836]

Those upgrades are AWESOME! Thank you for sharing them! 👍👍 I do not have an Ascent Fusion but I love your generosity. The cantilever suspension looks amazing.

[@RCTNT]

Thanks! (it's not all generosity, I am making videos here, after all) - but it's my pleasure to share these. Feels good to have it sorted!

[@doodlepugg]

What a drastic transformation for an under developed out of the box truck. You've literally built it up to how it should've been out the box, mega satisfying to watch, especially the linked suspension! I'm massively impressed, huge credit to you and your experience

[@RCTNT]

Heh thanks. It's not a bad rig in stock form, to be clear. The value for money is pretty great out of the box - better than nearly anything else, in fact. But there are some gains to be had with some tinkering, yeah! Cheers

[@doodlepugg]

@@RCTNT that's fair. To me it just looks as though all the boxes for 'good things to have on a crawler' were ticked, but not properly thought out. I really like the look and idea of the stock truck, it just seems to be lacking the polish it deserves!

[@RCTNT]

Yeah that's not a bad point, though it is quite capable in stock form. It could have been so much more with some redevelopment though, yes!

[@derrickhays3627]

Thank you for pointing out the weaknesses and problems and not just saying it's awesome like a lot of other channels, it looks taller but is more planted with great flex superb job on the suspension set up👍 thanks for sharing.

[@RCTNT]

My pleasure. No rig is perfect (yeah ok, maybe the Vanquish VRD Carbon comes pretty close) but there's always room for improvement! Cheers

[@onemanmayhem]

I raise my hat to you, sir! All the good things have been said... This is pure championism! 🎉

[@RCTNT]

Haha, thank you. (I'd never heard the word "championism" before, that's a new one to me!) Cheers

[@onemanmayhem]

​@@RCTNT​ yea, here in Finland we innovate also 😂

[@jayleeson8517]

Bravo Sir Bravo, Fantastic way you have sorted the bad geometry on the car.

[@HeavyHaulagePilbara]

Damn Craig. Love how you discuss your way through changes, rebuild for the Fusion and then share that knowledge. Appreciate it a lot as a newbi to the crawling fraternity.

[@RCTNT]

My pleasure. I want to be helpful, youtube gives me a way!

[@HeavyHaulagePilbara]

@@RCTNT Just ordered one. All the way from US Redcat. None here in Aus sadly.😀

[@RCTNT]

@HeavyHaulagePilbara cool, I hope you enjoy it!

[@brianmassey7563]

I love what you've done. Seems to be a proper crawler now, and you've managed to leave the Redcat in it still.

[@RCTNT]

Thanks Brian! I wanted it to still feel like the original car, yeah. Just... better! Cheers

[@SeanMarshall-q8d]

This is amazing! I downloaded all your files and made some modifications to your spacers and changed the print layout on the SOA mount. I tried about 6 different prints on the SOA and managed to break them all rather quickly so i ended up using PETG on the Soa and printing it at x-180 y-313.75 and z-90 and it took a bit of dialing in to get the print to stay on the plate but once it did it seems to be the winning combo! this way all of the screws intersect as many layers as physically possible and are all about 45 degrees so the sheer loads are never on a layer line. All in all tho this has made the fusion an absolute monster! although i think mine is technically an ascent revolver now.... i couldn't help but toss an outrunner in.

[@RCTNT]

Haha that's excellent, and thanks for reporting back on the SOA mount. That kind of approach is definitely needed, it's a challenging one! I may be able to increase the amount of material on the mount, too. Should get around to that. Thanks for reporting back. Go forth and conquer with your epic new Ascent Revolver!

[@dc9808]

to say I like this would be a huge understatement! I do not have one yet but I really appreciate you sharing your expertise. Great video.

[@RCTNT]

Thanks, it was a fun project 😁

[@PBStuffCo]

Just came across this.. Thanks so much for modelling these components, providing an overview and putting them up for use.

[@RCTNT]

It's my privilege to be able to share it with you guys. Thanks for watching!

[@VS666]

damn, i was kinda thinking of picking one of these up and with all the rework you've done i'm impressed, even more of a beast. that cantilever is nifty, love watching it work

[@RCTNT]

Came up alright eh! Cheers

[@cwthemachinist]

Highly impressive! Amazing work designing that cantilever rear and 4- link front. I also am not a fan of 3- link panhard set-ups. Great work friend. Another really good video. We think alike with tech design and engineering.

[@RCTNT]

Thank you very much!

[@LumpkinMumfins1]

Looks brilliant! Well done getting this to its full potential! I’ll be looking forward to picking one up and throwing on all your mods before long, as that cantilever suspension is just fun to watch!

[@RCTNT]

Awesome, I really hope you enjoy it!

[@kopigangrc]

Brilliant work and effort put into the geometry itself. It was carefully thought for. And it's awesome watching you drive it through the 6 courses. Really love the cantilever working the rear suspension. Thanks Craig for sharing the files too. Though I'm still waiting for the ascent fusion to come my way. 😅

[@RCTNT]

Hope the Ascent Fusion fairy visits you soon then! Cheers

[@wickedrclines]

Incredible work! You are a master! Thank you for sharing this amazing work. 🫡

[@RCTNT]

🙏🙏

[@michaeldorich4485]

The crawler really performed extremely well. You've done a lot work an designing that has resulted in a great performance. The rear suspension just follows the surface of the rocks so well. It's extremely generous of you to make all the files available. There's a KZbinr I follow who currently is into crawling. He's got a Redcat and another one. He has designed a wooden bed for his Redcat. I don't know if qualifies for a competition, but it looks good. His channel is MX Acres. You may want to take a look. He's a fun loving guy.

[@RCTNT]

Cool! Thanks and yep, a tray is legal as long as it covers the chassis and is the width of the cab all the way back. Cheers

[@michaeldorich4485]

@@RCTNTYou're welcome. I don't think his tray is as wide as the cab. He has a beautiful area he's making into a crawling area.

[@dudleythree3]

Great work mate, love the mods and the improvement from them

[@RCTNT]

Thanks, me too. Satisfying 😎

[@freakenstein_rc]

I seen your video and had to have this setup absolutely love it man great job

[@RCTNT]

Ah that's great, glad you're enjoying it

[@Ryankhines]

Wow! What a transformation! The cantilever suspension looks so cool and works amazingly well. So much work went into it and you are sharing it with the world for free. You sir, are a gentleman and a scholar! :) In your instructions for printing the inserts you mention "Recommended filament: TPU (softest you can find)" would 95A work or should it be softer?

[@RCTNT]

My pleasure! I don't know what the shore rating is of the generic filament I use, but try one and see what you think. If not soft enough, find a softer filament or try cutting a few pieces out with scissors or a blade.

[@damienjones7185]

Well done. Do like how you haven't just when it not good enough and left it you have work on it and play with it. An top points for leaving in the servo mount braking

[@RCTNT]

Gotta show a little of the process, after all! Cheers

[@SDIRALN]

That is quite the extensive list of modifications, and honestly it looks to have addressed the biggest weak points of the Ascent

[@RCTNT]

I sure hope so!

[@RC-jt2gx]

Well done! 👏👏👏

[@RCTNT]

Thanks!

[@pocketfuloducks1062]

Thank you. That is all.

[@jrfishes]

Really impressive what you did with that rear suspension. Great work!!

[@RCTNT]

Came up alright didn't it

[@MrCveedub]

1:01 lol love the cheeky smile

[@rcarty419]

Man you are Awsome love how you attack problems! I love my printed mini chasiss you designed! You are able to do what I look at an RC and want to do. Love the 3d inserts too I clip the ones I bought to make it like yours front vs back, but see you have em to print. Still not sure I like them So stiff on sidehills….but they do add great weight. Break it and fix it better!!!

[@RCTNT]

Aw thanks :) I can design inserts with softer sides for better side-hill action. With TPU, that kind of thing is actually a bit more difficult, but I'm going to get around to thinking hard enough about it to implement a solution. I'm sure we can soften the sides up a bit, without losing greater carcass shape when it's not wanted. I'll keep thinking about that and we'll see where it comes up in future.

[@team_irish01]

Haven't forgot about this. Heading up to camp a weekend and crawl. As soon as we home I'll start back on it. Have 99% of it printed. :)

[@RCTNT]

Oh great! Have a top weekend away and enjoy this when it's ready 👍

[@team_irish01]

@@RCTNT Ok, so started putting it all together and found out the rails on the normal Ascent are different than the fusion. Time to switch rails...

[@RCTNT]

They're C-channel rather than flat, yes? Is the motor mount too wide now, or too narrow? And can you just fit spacers inside the C-channel gap so the motor mount has a smooth surface to mate too? Idea: cut the motor mount 1mm shorter on each side in your slicer, before you print.

[@team_irish01]

@@RCTNT No they are flat also, but I thin k the back end of yours is different cause the rear shock holding piece wont line up with anything

[@RCTNT]

Ah that's frustrating. I'd gladly fix it up for you but I don't have access to a Redcat Fusion here yet! They're still not in Australia!

[@magnusstone]

I love the deep dives! What do you think is the most terrain-capable crawler you can buy? Preferably under $400 (or under $400 used).

[@RCTNT]

New: Element Ecto Used: VRD Carbon if you can get it, or SCX10 Pro

[@Offroadflicks]

I had the same issue with servo mounts to!! Just ended up going with a boco steel mount 🤷🏼‍♂️

[@RCTNT]

So far the bolstered one is good. I left the breakage in as a demonstration of when you get the alignment or part design wrong. But the current part should be strong enough. I can next try printing in PA-HT or else I might try my own design in stainless, from shapeways. If there's a cheaper, metal option out there for this car and in stock, like this Boco mount (that I will now look into, thanks!) then yes, that's probably the best option!

[@RCTNT]

Oh wow, that's a great price! I've updated the video description with a link to that and a suggestion that it's probably the best option. Thanks for the tip!

[@Offroadflicks]

If I was more skilled with a 3d printer I would’ve gave it another shot! But was tired of getting a couple miles into a trail and carrying it back because of a servo mount. Never again!! Lol but yes they make very good quality products in my opinion, also gives you some axle weight

[@RCTNT]

@Offroadflicks understandable

[@pbruteforce1]

Great job 👍

[@mattydeanwtf]

Awesome engineering mate, great designs 👍 can’t bet taking the redcat out of the redcat lol 😂

[@RCTNT]

Aww I tried to keep it redcat, despite the changes! But I get what you mean. My fixes are still a little awkward, I don't like having the motor pointed so high and the xfer case shaft at that angle, but solutions meant compromises for this rig. I think we got there. Cheers

[@tap9083]

I am wanting to get into Crawlers not for competition. But just to play around with. Would you suggest this over the TRX4 Sport? Or is there another good option? After watching this video and seeing the mods it seems like it would be superior over the TRX4. Especially in the motor and esc dept. (Brushless over brushed). I am very mechanically and electrically inclined so it should not big any issue to make mods or electrical issues. I have been in RC on and off since 1976. I did more planes and helicopters, but now than I am retired. I would like to just hang in the forest and play with a slow moving RC Truck. I live in Arkansas and we have plenty of rocky terrain. Thank you so much for a great channel, I love your honesty and integrity on your reviews.

[@RCTNT]

Ok, I've had a think. The Sport is a great all rounder. Avoid the Fusion here, it's a weird one and not well suited to what you want to do. Consider the Cross RC AT4, JT4, NT4, and XT4 kit, and if you do a kit with any of these, put a Fusion SE 1800 in them. Consider the Gmade BOM GS02F - it'll reward a Fusion SE 1200 choice better, and run on 2S. The RGT Rescuer and Pathfinder are both excellent options also. I'm partial to the Boom Racing BRX01 and BRX02 kits, they're exceptional. But not hugely capable compared to most else here. But they're sublime to drive. Read my BRX01 review on my site to get an idea of just how flexible this platform is. Hugely durable, too. Have a read of this, it might help: rc-tnt.com/manufacturer/multiple/what-is-the-best-rc-rock-crawler/

[@tap9083]

@@RCTNT Thank you so much, I really appreciate the help. I do enjoy building kits. Now days it is almost all rtr rtf pnp etc.... Thanks again, I will go read the What is best.

[@Bradkozakandfriends1830]

Awesome job. Amazing

[@steverolfeca]

So this can be made legal for competition with some printed bolt-ons? That's unexpected. Thank you!

[@RCTNT]

That's it! Weaknesses of my kit are no instructions (though I do provide high res photos and a parts list on my site) and the servo on axle mount has been a weak point for some. Recommend printing on different angles to find the strongest orientation for your printer and filament. But otherwise, yes. The thing is a beast with this overhaul 😎

[@gpaull2]

I’d like to send you my modified servo mount, but can’t find your email listed anywhere. As per your request I don’t want to post it anywhere other than your website. The servo mount wasn’t able to survive my teenage sons driving, and Boco wasn’t willing to ship their mount to Canada. Instead I added material to your design and its now survived two of his outings. Previously it never made it through an outing. I made the area that bolts to the diff housing thicker. Where the tiny bolts go through, the mount stays the same thickness instead of slimming down. I also added material where large bolt goes through the mount. No problems so far! 🤞 Everything else has held up to his abuse and the truck is working amazingly well (better than my VFD carbon). Thanks again!

[@RCTNT]

Oh you can post that up wherever you usually would! That's your modification to my design, go for it. Just reference the original when you do, all good! Thank you for the consideration though! My email is listed on the About page on KZbin. Cheers!

[@RCTNT]

... Better than your vfd carbon?! Holy Moly!

[@michaelaldernan9723]

Do you have a deminsion sheet on the parts? Don't have access to a printer but do have access to mills and lashes. Thanks, love the vids man.

[@RCTNT]

I could generate one for you, no problem. And if you are able to make a CNC SOA mount, there are going to be at least a dozen of us throwing money at you for one!

[@AnySumptionBanter]

yep.. right there with you. I had been saying this even from the non-fusion ascent came out; the geometry was bad and could be seen in pictures let alone in driving. I really didn't understand also how ppl believe this was a good value. It makes me sad how conditioned people are to believe this. The work you put in it should have been done in the factory; no reason for in 2024 for rtr's to a)come with brushed motors, and b)poor geometry. We should not have to fix their issues if we're paying for them assembling them; i now just build my own because in the end, its cheaper than buying an rtr and replacing so much and repairing their issues. Thank you for being so specific on the cons; we can't just say everything is great and we need brands to do better.

[@RCTNT]

Thanks - though I will pick on one thing: some brushed motors are amazing. There's definitely a place for brushed motors in the hobby. Nice as FOC is, a good brushed system can be lighter and go better than a heavy Fusion (though of course, flat brushless outrunners are epic value and their power-to-weight ratio cannot be ignored!). But anyway, this was a satisfying overhaul :) Cheers

[@stefan-norge]

Great mods, look and functional 👍🏻👍🏻 PS: rubbing is already box stock massive….

[@RCTNT]

Thankfully that's easily fixed!

[@keithhoffmeister9431]

Question the read me page says the cantilever needs 4 x M3 washers. In the pictures I only see 1 on the outside of each cantilever. Is the other one on the inside between the rail and cantilever?

[@RCTNT]

That's correct, yes.

[@keithhoffmeister9431]

​@RCTNT next question the big spacer for the cantilever it sits on the bearings and what is suppose to be spinning as the suspension moves? At the moment I think I have it too tight or the spacers in the wrong spot?

[@RCTNT]

Have a look at the website again. I took a bunch more photos to help you see what's going on. I'm sorry I haven't got instructions yet for this. I'm so crazily busy at present but I really need to make life easier for you guys building this thing! Hopefully the photos help. In short, the bearings are held in the cams and they move over the bolt. The spacers keep everything at the right width and yes, don't over-tighten. A tiny bit of movement is what you're after. The locknut will stop it coming loose and the tiny bit of movement will allow the pivot without friction. It's a fine line.

[@keithhoffmeister9431]

All good man I appreciate you answering

[@TheAmerican1963]

If I upgrade my servo on my Ascent Fusion to a Powerhobby 729, do I lose my adjustment of my EPA on my controller ? Great video !!!!! Thank you !!! 🙂

[@RCTNT]

Nope, should be the same function regardless of servo.

[@TheAmerican1963]

@@RCTNT Thank you !!!! You are always great help !!! 🙂

[@darrylpaarman9100]

I am trying to decide on which Vehicle to purchase as my 1st RC Crawler. I like the Fusion or the Element Ecto. If I were to get the Fusion -this is the way I would want to go . I do not have a 3d printer though- Have you thought about making these parts for those of us who don't have the ability ? I would be interested in a complete printed set.! Thanks for all that you do.

[@RCTNT]

Ecto is a super solid choice. Ascent Fusion is definitely premium, but I think performance will be more limited by how busy it's front end is. I've tried hard to address that but you'll be able to take the Ecto further with mods. I won't print and send my designs. Vastly impractical for multiple reasons. Best to ask in your local FB crawler group for someone who can print it for you. Keep it local. Much easier!

[@darrylpaarman9100]

@@RCTNT thanks for the reply. Wasn't really expecting it. I just started watching your channel. Great content.

[@RCTNT]

No worries and thank you.

[@RS-sv3bl]

Brilliant!

[@RCTNT]

🙏

[@bbfpv9512]

great work I have just picked up this rig and I had to start printing your design as it looked so fantastic. I'm going through your parts and I'm unclear on a few things about your lengths of your links? some say eye to eye and others say rod ends. So the rod ends are without ball links?

[@RCTNT]

Thanks, hope you enjoy it. The lengths are eye to eye. Rod ends always need ball links, so if the ones you're considering don't have balls you'll need to buy some, or find a different set of rod ends.

[@gpaull2]

Which way do you orient the front tire inserts? Almost got mine all together…thank you so much for sharing!!! 😎👍

[@RCTNT]

Clawing forward into the ground, like aggressive animal running!

[@gpaull2]

Nice! Thanks so much for all of your hard work and expertise!

[@procat78]

hey mate im trying to get my head around the printable parts and i cant seem to find the main spacer on the rear that the shocks bolt to

[@RCTNT]

Hi Chris, you want 'Under-tray main spacer.stl' in the middle, with 'Full Length Tray Bracket LHS/RHS.stl' on each side of the chassis. Use either 4mm ro 5mm spacers from the 'Spacers.stl' file to get the shocks aligned parallel to the chassis and to each other. I haven't made time to write instructions with pictures but I've heard back from several folks so far who have got it built successfully, so I know all the parts are there. It's a bit of a tinkerer's project, this one, but you do have everything you need in the zip file to get this thing sorted. You could try laying it all out on the bench before you assemble the rear end, to help give yourself an idea of how it'll go together. Good luck with it!

[@NOWWATTFPV]

Well done. GOOD ON YOU for making the inserts stl available.

[@RCTNT]

My pleasure!

[@jeffparryncc1701]

Outstanding work Craig. Are you working on a Wraith Spawn by any chance 🤔🥰

[@RCTNT]

Thanks Jeff! You know, a Wraith is one rig I've never owned, funnily enough. It's a bit of a glaring gap in my RC experience!

[@agnozane]

Hi, I was interested in 3d printing your tyre inserts and was wondering what filament to use to get the best results. Thanks mate love your videos.

[@RCTNT]

No worries! I've been using generic TPU. 1 wall/shell thickness, 0% infill. Do some tests and just print the first 30 or 40 layers and see what you think, adjusting as necessary.

[@agnozane]

@@RCTNT Thankyou very much. I'm new to 3d printing. Just did my first print yesterday so I have a lot to learn. Your help is much appreciated.👍

[@RCTNT]

Experiment and have fun. Did you get one of the Bambu series while they're on sale?

[@agnozane]

@@RCTNT No I bought an Ender 3 V3 Se on sale as a starting point

[@RCTNT]

@agnozane fair enough. The Enders are great to learn on, as more knowledge is required to obtain good and consistent results. My time with my Enders gave me a real leg up now I'm working with the Bambus. All the best with it!

[@Team_ReVolt]

Nice! However, this is how this rig should have come rtr. I wonder if you could do an in depth vid on that type of rear suspension? I am fascinated by the cantilever setup.

[@RCTNT]

I agree it has its issues, but my approach here probably isn't for everyone. I appreciate the kind words though :) Cantilever suspension is interesting, eh. I've got more about it in a review of a kit build I did a couple of years ago, with the Gmade GF02F. Check that out here: kzbin.info/www/bejne/fHekhoGiq7mVrpI (I wasn't as polished back then, as I was only a few months into making videos for youtube for the first time. But I still covered the suspension. It's cool, and I've wanted to try it again since then!)

[@team_irish01]

Will all of this direct fit the regular ascent also? Or do I need the fiber rails? Amazing work/channel. Subbed for sure. Thanks so much for your work and info.

[@RCTNT]

I have absolutely no idea, sorry. The original Ascent still isn't in stores here yet and I know nothing about it. That said, if the Fusion is the same platform, then presumably yes. I can say the chassis type shouldn't affect the front end mods at all, though you may need an extra few mm in spacers for the rear, assuming dimensions are the same apart from steel C-channel rails. If you have a printer, it'll only cost you a buck or two in materials to print the servo and motor mounts to find out!

[@team_irish01]

@@RCTNT I sure do. Already planning on printing stuff up as soon as I get home!

[@RCTNT]

Haha awesome. I hope it comes out nicely for you. I mean, if you're not running the Fusion, you may not need the motor mount. Depending on how long your motor is, you might be fine with just using the servo mount and fitting links yourself. Indeed, the rhino esc and short motor are a great choice if you don't have a Fusion in it already. Depending on budget, of course! s.click.aliexpress.com/e/_mt2tnQO

[@team_irish01]

@@RCTNT Fusion installed already. I auto install it on any of my crawlers now. Have to wait on some screws but Ill let you know compatibility. Should be pretty much identical as I believe the steel free is basically identical. I have changed my shock springs to the losi mini's tho. So that may effect the rear.

[@RCTNT]

@team_irish01 if you still have your original springs you can go back to them, or, just see what you think of the new ones. Thanks for letting me know, that'd be great 👍

[@postman89]

Any chance you are selling more copies of the cantilever kit?

[@RCTNT]

I haven't sold any of it, but the files are there to use for free. Hit up your local FB rc group and ask if someone will print them for you. Numerous folks have done that already, in the comments. Seems the way to go!

[@wrrccreations443]

Awesome video where can I purchase the files to print from you. ? Love the video

[@RCTNT]

You can't buy them. I've given them away for free. Everything is in the description 👍

[@wrrccreations443]

@ sorry did not see that 🤦🏻‍♂️thank you! Awesome videos

[@rcgace]

Is there anywhere I can buy the parts for the Redcat fusion already made up

[@RCTNT]

I don't sell them but hit up your local group (forums, Facebook, club, whatever). Chances are you'll find someone happy to do it for you. Or, post on reddit.com/r/rccars and share the project download page and offer to pay someone to print it for you and ship to you. There'll be someone for sure who'll help you there.

[@TheAmerican1963]

What is involved in running the steering servo at 8.4v on the Fusion ??? Sorry for such a rookie question but I am very new to all this !!!! 🙂

[@RCTNT]

You'd need to get 8.4v to the servo, either by adjusting the esc settings (can't do that with this variant of the Fusion) or by committing to running only 2S and separating the servo red wire and connecting it to the battery line. Or adding a bec that gives 8.4v to the servo.

[@TheAmerican1963]

@@RCTNT I understand. Thank you for the info !!!! 🙂

[@RCTNT]

No worries. One nice thing about leaving it at 7.4v is the servo won't be as stressed and should last longer in heavy use scenarios without fade from heat.

[@TheAmerican1963]

@@RCTNT Good deal !!! I'm going to choose to leave it alone. LOL 🙂

[@RCTNT]

@@TheAmerican1963 that's my approach with it too. She's pretty good at 7.4v already, yeah.

[@squishinstix]

New crawler here, the Ascent18 has gotten me hooked and thinking of getting the Ascent Fusion and definitely interested in these mods. I have a printer and tons of experience on that front, but where is the best place to grab all the extra hardware needed for these changes?

[@RCTNT]

Everything is linked on the website and in the read me file included in the download

[@squishinstix]

@RCTNT I know the readme lists all the materials needed, but I'm wondering if you have suggested retailers/website for where I can source those materials? Thanks!

[@RCTNT]

@squishinstix oh! Sorry, I could have sworn I had links to all of that. I'll look into it this morning (dawn here now) and will update it and let you know. Sorry about that!

[@squishinstix]

@@RCTNT no worries at all, I appreciate all the hard work and development! This video is going to have me get an Ascent Fusion and do these mods vs. building a VRD Carbon for probably twice the money!

[@RCTNT]

Thought I replied to this already but it doesn't seem to have saved. The VRD Carbon is the better rig, regardless of what you do to the Ascent Fusion. But the Redcat is far cheaper and smiles per dollar is probably higher with it. I get a wide range of hardware from AliExpress every couple of years, allowing me to tinker. That's a good place to look.

[@apocalypsezombyRC]

Impressive!!!!

[@Offroadflicks]

Ascent $289 model non fusion or gladiator if you had to pick one? I know they are different breeds but I cannot decide !

[@RCTNT]

Gladiator for trail and light crawling. Ascent for if you usually just crawl when you go out.

[@idworkhard]

Craig, are you concerned with exposed PLA and TPU degrading over time? Do you paint them or have you found filaments that don't degrade with exposure to water and UV light?

[@RCTNT]

I don't know, honestly. The best test subject I have is my orange mini utb18 chassis, printed in pla+. That's been to many comps, been wet, survived a 6 meter fall off a cliff, sat in summer sun and surf salty air, etc. Still good so far. I guess we'll see!

[@VS666]

I’m slowly but surely printing out this setup. I just got a Bambu X1C and have a lot of learning to do. I just finished the bed in ABS, is it normal for the file to not have the correct settings based on the readme? I’m pretty sure I changed the settings to what they were but I also thought the file would already have it saved

[@RCTNT]

I didn't include a sliced file - that would be a 3mf file for the Bambu. Just the model, which is an stl. You need to slice it yourself. That means adjusting the settings in the slicer to match my recommendations. However, you're printing in ABS, which changes things. I have zero experience with ABS so can't make suggestions to change the files. My print guide is for the filaments as listed. Bottom line, you may need to experiment a bit (ie. Print the same part a few times) until you're happy. Comes with the territory, really! Though you've made it very easy on yourself with the X1C. I run a couple of P1S printers and couldn't be happier with them. Enjoy!

[@VS666]

@@RCTNT Thanks for the quick reply, perks of commenting at midnight I suppose! I am fairly happy with the ABS so far, but I'd like to do PLA-CF once I figure it out. Printing the SOA right now!

[@RCTNT]

@VS666 haha yes, incompatible time zones for the most part eh.

[@diffin69]

Does anyone know where to get the cams? Whether it’s pre built or a printable file? I have every piece made for my fusion except the cams. Any help would be appreciated!

[@RCTNT]

Sorry, I missed them in the original upload. Have made a couple of updates since the video dropped. Check the page again. Apologies for the hassle!

[@diffin69]

@@RCTNT no problem at all! I really appreciate the response! I’ll take a look and see what I can find. Thank you

[@LMH710]

So vrd stance or red cat accent fusion?

[@RCTNT]

Fusion this fun scale looking body with my cantilever and tray mod for something special. Stance for straight up performance (or vrd carbon, better still).

[@BrianWilson22]

Do you have a STEP file available? I keep breaking the printed ones and want to get a metal one made.

[@RCTNT]

I'm sorry, I don't have the ability to work with step files. I'm on the hobbyist license of Fusion 360 for now, which doesn't give me step capability. Sorry. I'm working on the design again today to see if I can make it less prone to breaking. Have you tried printing it on a 45 degree angle, basically using supports for the entire model? This would double the axial strength on the weaker plane from flat printing (though would halve it on the other, which hopefully wouldn't matter). How are you finding it breaks currently for you? Same place each time or differently? Be specific as that will inform my advice to you and also possibly the changes I make to the model. Thank you!

[@bcwillywilson]

⁠@@RCTNT the driver side of the mount keeps breaking off where the servo mounts to it like the entire upright part of it is breaking off of the base. I use fusion hobby as well and it lets me export my files as a step file.

[@RCTNT]

You've tried printing on a different orientation? That kind of breakage may be avoidable if you rotate the part on your slicer 45° and print it on a support. Maybe.

[@justinnoble2497]

What did you use for the links in the cantilever system? I just had these parts printed out and im trying to cover all my bases. As far as the front upper links go, what would you recommend for those?

[@RCTNT]

I put a parts list in the READ ME.txt file that's included with the download. Specifically: Cantilever Assemblies 4x Ball bearings OD/ID/W 10/6/3 4x M3 Washers, wide 4x M3 40mm screws, any head 2x 45mm Links (I used 2x 22.5mm rod ends & M3 threaded rod) 2-8x M3 spacers, as needed to match ball ends Upper Links 2x M3 16mm flat or button head screws 2x M3 Nylock nuts (left-over from OEM vehicle) 2x Straight links, 74.5mm eye to eye -or- 4x M3 bent rod ends, 27mm 2x M3 threaded rod, 50mm I just bought various packs of rod ends and threaded s/steel rods from AliExpress and combined stuff until I was happy. For the canti links it was 2x 22.5mm rod ends & M3 threaded rod between them, with no exposed rod. That worked well.

[@justinnoble2497]

@@RCTNT I found the read me. My apologies I didn't even open the files I just shipped them off to my person who prints and that was that. Busy month here as well, finally starting to slow down. Now time for projects and play. My Amazon cart is filled with odds and ends now for this one. Thanks a bunch for this. You're a hero.

[@RCTNT]

@@justinnoble2497 my pleasure! Sorry I don't have step-by-step instructions for it yet. Big job, am also busy. But numerous folks have worked it out already so hopefully it's not too complex! All the best with the build!

[@justinnoble2497]

@@RCTNT I didn't see it in the read me but does this absolutely require cutting the shock hoops off? I don't plan on running the bed but it looks like the rockers may mount to the bed rails. I'd rather not cut up my pretty carbon fiber if I don't have to 😂.

[@RCTNT]

@justinnoble2497 no cutting required. They unbolt. But yes, you need to remove them for the tray to fit. That's why I developed the canti setup. If you don't want a tray, you don't need the canti setup - but it should still fit with the shock hoops. Though I don't know why you'd keep them on if doing that! Personal preference, you do you 👍

[@aorchotika]

Ok you Jedi now in my books 😂 Brilliant mate when I get one I'll be doing this 100%. That counter lever rear is working beautifully 🤌🏼

[@RCTNT]

Lol thanks

[@aorchotika]

@@RCTNT 😄

[@charleshurley8927]

What is the final length of the upper links on the front? Is it 95mm or 104mm?

[@RCTNT]

Took me a little while to get down to the shed to measure for you. I'm using bent rod ends at both ends of the link, keep in mind; length is 70mm exactly, eye-to-eye. Lower links and both rear sets are stock. The chassis holes I'm mounting the upper links to is the ones in the middle, roughly in line with the center piece of the front drive shaft. I uploaded high res photos a few weeks back, linked in the video description and on the rc-tnt.com download page for this project. Hope that helps!

[@charleshurley8927]

@RCTNT the carbon fiber chasis must be a little different than the original one. Because I can use the original front upper link as a baseline to set my pinion angle and it's about 5mm to long. I'm pretty sure it's 100mm eye to eye.

[@RCTNT]

@charleshurley8927 oh I see, yes. Folks have told me it's quite different, so I'm not sure my mods will fit it. If you're down for a tinker though, go for it. Let me know how it turns out!

[@charleshurley8927]

@RCTNT so far, i had to cut the front shock hoops to use the motor mount. And now I'm trying to get the upper links right so I can get the pinion angle correct, but other than that, everything fits good.

[@RCTNT]

@@charleshurley8927 hm ok, thanks for the info. Doesn't sound too grievous!! So glad you're tackling it anyway. I bet you'll be done soon at this rate! Hope it puts a smile on your face! Cheers

[@charleshurley8927]

I live in America, and I don't have a 3d printer. I also have the original redcat ascent, but I put a fusion pro in it. Do you think you can print everything I need to do my ascent this way? I'll pay. Thanks

[@RCTNT]

I won't do that, sorry. I live under a time crunch as it is. That said, hit up your local FB rc or crawling group and ask there. Someone will be sure to help. It's a good bunch, rc people!

[@charleshurley8927]

@@RCTNT ok. I'll try and seeifi can send someone the downloads. Thanks anyway

[@RCTNT]

I hate saying no but I've gotta be realistic. Very busy here! On the bright side, these designs could easily have been monetised but I've chosen not to. That really lowers the barrier to entry. All you need to do is share the webpage with the download and description on it and someone will be able to help, I'm sure. All the best with getting it done!

[@joshuaowens6482]

What is a the best 3d printer to start with

[@RCTNT]

Bambu P1S. Maybe their A1 Mini, but I haven't used it so cannot say. But the P1S is just perfection. I've had many printers over the last 10 years and even though the P1S isn't cheap, it's so, so much better than anything else I've ever used or built, it's my instant answer. Everything else makes 3d printing a hobby unto itself. Bambu makes 3d printing a useful tool to support your actual hobby of RC or whatever.

[@sledhedone]

i want that bed!!! that's sweet!!

[@RCTNT]

Haha yes, it adds to the fun

[@TheLilhulk1111]

Cool idea on the bed but it just does not look good

[@RCTNT]

Thanks, I've been thinking similarly. It's been bugging me but I haven't put brainpower towards it yet (priorities!). I've had a few ideas: - raise the side bracket height to fill in the visual space under the tray, so it looks more solid; - play around with placement and shape of the wheel arches (I had a flat tray in earlier versions, but tire rub meant I needed arches); - try using the empty space under the tray to create a drop bed; - and of course, check what other trays look like in real life and incorporate some of those lines or cues somehow (you'd think I'd have done this but no, it didn't occur to me!) I'm open to suggestions, too. What would you change? Cheers!

[@TheLilhulk1111]

@@RCTNT maybe try and see what full-size crawler trucks are doing. It just seems like the arches are so far back but I do understand the wheels are really far back. Also, maybe it’s just the truck set up I don’t know.

[@RCTNT]

The tray is necessarily short for comps, so yes, maybe it's just the wheel arches. Earlier designs were just a flat tray but the wheels needed the clearance. I'll have a play, maybe there's a way to improve it.

[@TheLilhulk1111]

@@RCTNT really like your content and I’m glad that you’re open to suggestions very comforting

[@RCTNT]

If I know everything already, I'll stay dumb. Thanks for the exchange. I'm still thinking about the tray design, but haven't come up with something better yet! Cheers

[@4buzze1]

Super nice. Wish you could walk me through the process on the bench. As I am a newb. But ima try the cantalever and the servo mount.

[@RCTNT]

I've uploaded a bunch of clear, high res photos now, so that'll help. Here's a suggestion on how to approach it: Get all your parts printed. Obtain the hardware you'll need, also. This is all listed in the Read Me file included with the download. The biggest challenge might be links. I keep m3 and m4 threaded rod on hand in varying lengths, and a bunch of straight and bent m3 & m4 rod ends. It gives me options when trying to build something like this. But for this build in particular, I'm pretty sure I have a suggested length for the upper links you'll need. In any case, read the doco and try to be prepared. Now, onto the workbench! Pull the rear hoops off, and the rear shocks. Remove the motor mount. Remove the servo. Lay everything out of the bench in a rough schema of how it sits on the truck. Have all the printed parts placed next to all this, with the chassis in the center. This will help you visualise how it's meant to go together. With the help of the photos, you can start assembling.

[@swagman831]

Can I possibly buy the printed parts off of you? Would love to upgrade my fusion. I dont have a 3d printer 😅

[@RCTNT]

Sorry, I'm pressed for time like you wouldn't believe. Find a local-ish FB crawling group and ask in there. You'll find a few folks willing to help out, I'm sure.

[@pcoplin]

Looks great! Damn, now I need to get a 3d printer. Argh

[@RCTNT]

Haha it's a whole extra hobby really. No hurry!

[@Matador805]

How’d you make the links?

[@RCTNT]

I keep various lengths of 3mm and 4mm stainless steel rod with m3 or m4 thread on the end couple of cm. I also keep various rod ends of straight and bent type in both m3 and m4 sizes. Measured out what I needed then bent to fit.

[@Matador805]

@@RCTNT thanks for the reply! Did you do the same for the cantilever too?

[@RCTNT]

No, well yes, but not exactly. I knew what I needed for it, measured at rest and full extension, then put two rod ends together on one threaded rod and it was within a mm of being perfect, so I kept it. If I'd released this overhaul as a product to buy, it would have all the exact measurements and instructions step by step. But it's free and I'm crazily timepoor so I've not gotten to all that yet! I may still do it, but it won't be soon!

[@Matador805]

@@RCTNT time poor is so relatable friend. Thanks for taking the time to respond. Absolute legend. Wishing you nothing but the best.

[@RCTNT]

Thank you kindly. I hope this project comes together in a satisfying way. Thanks for sorting through the unknown steps, I realise it's a bit of an adventure! Cheers

[@hunterhudson5146]

I don’t own a 3D printer, could you print me a set? I can pay 🙏

[@RCTNT]

I won't do that, sorry. I live under a time crunch as it is. That said, hit up your local FB rc or crawling group and ask there. Someone will be sure to help. It's a good bunch, rc people!

[@hunterhudson5146]

@@RCTNTI can’t download it off of your site

[@RCTNT]

Just share the website with whomever you find to help you with printing and they'll be able to download it. Button is at the bottom of the page. I just tested it and it's working 👍

[@hunterhudson5146]

@@RCTNTI got the parts 3D printed, now do I have to cut the frame to make this work?

[@RCTNT]

@hunterhudson5146 absolutely not. Remove the rear shock hoops.