My DIY Huina 1580 V4 Conversion!

[@mr.sinister1279]

Good job man that thing is very fast and strong

[@RCTNT]

Thanks! It was a really fun project and made me realise just how accessible RC hyrdraulics have become these days. Glad you... dig it (I'm sorry! Couldn't help it. Look, I have my dad license right here, everything should be in order)

[@jwill540]

A 1580 vs 16800 comparison would be cool.

[@RCTNT]

No worries, it's coming 👍

[@roblowrie1969]

If you think that generally, when you bend copper pipes for a central heating system, you'd have an internal spring to stop the pipe pinching. The bending tool will also slide over the outside of the angle to form it, not just bend it round a form. With a tiny diameter pipe like that, any bending force will probably make it collapse. You did really well with the ones you did. Ive no idea how you stop that happening with such a thin wall, and tiny bore!! I absolutely love this kind of project. No real instructions to follow, and make it as you want it. Brilliant. 👍🏻

[@RCTNT]

Thanks Rob! Great to hear from you, too. It's been a while, hope you're well. Maybe the small size of the pipes is what helps them bend better? The atomic structure of the metal is the same, whether it's a small pipe or a big pipe, so the walls are relatively more dense than with larger diameter stuff. Could be something to do with that, I dunno. Came up well, anyway!

[@roblowrie1969]

@@RCTNT yeah, I suppose wall thickness to internal diameter might make a difference. Not my area of expertise at all, but I want to try to make a cage for one of my crawlers, so I need to bend small diameter tube, etc, for that, so I guess I'll find out! 😆 That, and learning how to braze/ solder that kind of stuff. Always something new to learn. 🤗

[@roblowrie1969]

@@RCTNT as for being well, unfortunately I've been off sick for 3 months, after a severe gallbladder infection, and waiting to have it removed. Lots of scans, blood tests, and a biopsy, and my case being referred to Kings College Hospital in London, and I found out last week, I have a tumour on my liver. Not as serious as it could possibly be, and should be very treatable, but still a lot to get my head around. Thank goodness for all you guys making videos to keep my time off occupied. 😉👍🏻

[@RCTNT]

@@roblowrie1969 ah that is no good, it's not news anyone ever wants to hear. Sorry, Rob. I hope they've caught it early enough and that you make a speedy recovery. My thoughts are with you x

[@roblowrie1969]

@@RCTNT thank you. I have my gallbladder to thank for it being found a lot earlier than it might otherwise have been. I've got an appointment on Thursday with the specialist, so I'll find out more then, but they seem confident that this can be treated. 🤞🏻

[@onyxcobra4617]

Great video! Perfect timing as I am wanting to graduate to an actual hydraulic excavator. I gotta figure out how to stash a Servo and camera inside as I MUST fpv all my models. I’ve done HENG GUANS whole line just about. I also love to use Flysky receivers & radios for my models. Extremely helpful thank you!

[@RCTNT]

Very nice! And yes, fpv with this little thing is quite good. I did it too, a good while back! kzbin.info/www/bejne/d3m7dJqodtysn7c Cheers

[@alantaylor353]

Absolutely worth a like.!! 👍 👍 👍

[@RCTNT]

Lol thanks

[@alantaylor353]

👍 👍 👍

[@hairypaulmm7wab195]

Very nicely done Sir. Have been looking at a variety of different RTR excavator models and scratch build videos with great interest but need to really finish off a few of my other projects before taking the plunge into RC construction machinery. Looking forward to seeing Your test results, keep doing Your thing, always makes me smile when I see You have a new upload and really appreciate your no nonsense approach. I'm sure You will have fun with the excavator but be careful in Your summer months not to cook the machine! might be worth slapping a temperature monitor on the tank to avoid any issues due to thermal expansion. Also check all your interconnections and fittings on the hydraulic circuits after use and again after it has cooled down, You really don't want a leak, it is surprising how large an area gets gunged when you release hot hydraulic oil under pressure and it is a bit of a bugger to clear up. Have fun using it to build Your own tracks, crawler obstacles and weeding the garden.

[@RCTNT]

Thanks for the thoughtful comment there. I'm going to fit a radiator, I've got it here now. I've had a hydraulic leak before, it gets everywhere, doesn't it! Cheers

[@MehmetSutas]

For bending you may fill the pipes with talk powder squeeze as much as you can inside and then bend them.

[@RCTNT]

That's a cool trick! My bending jig did the job but without access to such a tool, that's a smart way to prevent it collapsing, nice one! (*talcum powder, if anyone is reading and not understanding)

[@meirdeaph]

That thing is totally awesome 👌 looks like a super complex build tho.❤

[@RCTNT]

It wasn't so bad, you've just gotta break it down into parts. Then it just comes together!

[@1HZ80]

I used the MAGOMHR kit,more time consuming than complex and my hard lines are waiting for me to get off my arse to fit them.

[@RCTNT]

@1HZ80 oh yeah? Sounds interesting, I'll have a look at it!

[@bdssoaz]

What a cool beast 👌👍

[@brentlykins7281]

Completely unrelated but … 1. Love the wooden rack to store your rigs. Simple but genius! 2. What is the blue strobing light under the rig to the far right?

[@RCTNT]

Thanks! Don't know about the light. Can you give me a timestamp where you can see it in the video?

[@pocketfuloducks1062]

This is the coolest, even if it overheats! 😂 🍻

[@RCTNT]

I've got my little radiator now, I'll plumb it in soon 😎

[@alfoard7709]

Tradelink for copper pipes and brazing equipment. Plus you'll learn a new skill if you don't know how to braze. Cool little excavator though. So many toys, such little time. [23:40] make a "just the tip" joke here at your own discretion 😂

[@RCTNT]

Haha right, yes! Good call on diy, and there's youtube to help as well. Though for these pipes I misspoke. It is simply solder that's used, for these little connections. Even easier!

[@jayleeson8517]

Watching you go through the electrics with such certainty makes me thing you can work out a current issue a lot of us are having at the moment. Please can you look into how we can keep the stock TX/RX and light system on the RGT intruder and run a fusion in it. Thanks in advance from everyone trying to work this out.

[@RCTNT]

Can't be done with the stock receiver, I'm sorry. The receiver doesn't have a throttle input channel, simple as that. Replace the receiver with another flysky BS receiver (which you can't currently buy except with an RTR) and then yes, you're good. But you don't need a Fusion. Get a quality motor instead like a Holmes Hobbies 40T Torquemaster Pro, and you'll be pleasantly surprised at the difference it makes.

[@1HZ80]

I had esc issues on my tram aswell,so now I'm running indiviual esc's now.I use a bendy straw from a fruit box or up & go to fill my hyd tanks.I'm having overheating issues with mine aswell and will be fitting a radiator,I also feel it may due to the size of the machine and no ventilation.

[@RCTNT]

Creative solution! Nice one 👍

[@Andy_Yates]

Cool project! Construction equipment always seems cool and takes me back to childhood with the Tonka toys. I'm not sure if those were a US thing or maybe they were branded differently there. Have you added the oil cooler or will we learn its fate in a future video? :)

[@RCTNT]

Haven't added the cooler yet but it's on the way. I'll neaten the wiring too. Yeah we had Tonka here too. Fun memories of tip trucks and fresh water creeks on Fraser Island growing up 😊

[@Andy_Yates]

@@RCTNT Yeah always good to tidy up if you'll be back in there. Sometimes my first pass at things are proof of concept more than anything. And goodness me, I need to proof read my comments better, you'd think I was writing them on my phone, or while working 😆

[@r.ccustomtruckingsydneyaus4632]

A cooler on that little pile of crap huina bro ain't worth it. . For what you spent on that crap and hydraulics 😂 you could of purchased a lesu racing model excavator with hydraulic detachable bucket 😂 ya crazy doing anything with huina. All childrens toys mate. Move up to adult series. Lesu . Premacon. Rc4wd. Whaulebox European excavators. Dozers hook lifts. I have all lesu equipment all built myself and not a kit version. . Why didn't you get a double E Volvo 360e hydraulic excavator. $3 thousand dollars and is to scale. A huina is not to scale. Put it beside a Tamiya truck trailer. The huina looks stupid besides it or on a trailer try DOUBLE E Hobby's mate get you some adults toys an stop playing with diecast crap . Sorry to kill ya vib mate. Buy you will thank me after you buy a lesu machine

[@RCTNT]

@r.ccustomtruckingsydneyaus4632 I have lesu stuff and the range of Double E as well. But there's no way you got any hydraulic thing going for USD$1k, including the excavator. I think you're doing a disservice to the hobby to gatekeep with brands like this. There are many who start with Huina and who are on a tight budget. Something like this is within reach where the pricier stuff simply isn't. Gotta start somewhere!

[@billtruett8593]

I would so love some to do a 1/8 scale carhauler that way 1/10 can be loaded…and I mean full hydraulic’s and sliding ramps pull down chains to secure your load.

[@RCTNT]

That would be very cool, yeah! Linear actuators make this pretty easy to achieve but hydraulic would be cooler!

[@just.jose.youtube]

Congratulations on the project! You've got a great set of skills too! 👏👏👏 Thanks for taking us along your journey! And thanks for the great explanations at the beginning. If I'm not mistaken, Aaron, from RC Sparks mixes the pump's and the valves channels so the pump comes on with the valves inputs. Is it possible/advantageous in your setup? You mentioned you set 2 speeds for the pump. Why exactly? Doesn't the continuously variable openings of the valves provide proportional speed for the boom/arm/... movements? (I hopes your understands mine engrish😅) Thanks in advance for your answer! 🙏

[@RCTNT]

Thanks, it was a fun build. As you can imagine, I had quite a lot of footage to cut to bring this video to its current form. That included an electronics 101 section, a demonstration on testing the original board for faults to determine the problem, troubleshooting the radio system for the tracks, a full review of the electronic soldering iron... and a discussion on the merits of mixing the pump with the hydraulic system channels vs running it separately on a switch! I went with the switch for simplicity and also for a more linear response on the sticks. If you mix it with the pump, it spins up the more you actuate the sticks (though you can mix it to be 100% once any of the sticks are away from a neutral position). The issue with the gradual approach is that you get very little movement, then a tiny bit more, then heaps all at once. Having it on a switch gives you more predictable stick control, basically. Related to that, having two speeds was a case of "because I could", the idea being something like a dual rate limiter on stick response: run it at half power and your stick inputs will be slower, which is easier for a beginner. You do sacrifice some hydraulic power though, so really you want full speed when using the thing. A radiator is going to help. I've got it here and am just thinking about where to cut the body and fit a mesh shield to keep it looking pretty whilst still allowing air flow. Gotta clean the wiring up a bit too. Cheers!

[@just.jose.youtube]

@@RCTNT thank you so, so much for your extensive answer, Craig! It's full of knowledge too! 🙏🙏🙏 Can't wait to see the radiator update video, if you make one. I bet you'll make it look nice. Cheers! 💪

[@Hoganbroexc]

Compare your modified 1580 to stock 1550 or 1535 they’re basically the same thing but the 35 has three attachments

[@RCTNT]

I have all of those here, and more. We'll literally do that comparison soon. But the 1550 and 35 use internal gears that are far weaker than the linear actuators in the stock 1580, FWIW. I have the 1535, or 1550 v1. The 1550 is the V2 version, the one that has the extras. The 1580 comes with 3 attachments, too, but has linear actuators instead of those plastic gears.

[@s13kuminachu]

Is hydraulic really that much better than a good electric excavator? The double e for $750 looks good. Thoughts after having used both?

[@RCTNT]

Ok, so I have all the linear actuated excavators I could get my hands on, including the full range of Double E (2 or 3, however many it is) and most of the Huinas (7 or 8 of them). I've not powered up the strongest Double E yet but I have tested the 1599, which is similar money. The hydraulic is stronger on this little modded unit, I'm pretty sure, but there's not a lot in it. What I'm planning is to group these things into three categories: cheapest ones with the exposed gears around the hinge points, then the mid range ones, then the couple of expensive ones (Double E E010-003 and Huina 1599). I'll test the hydraulic 1580 here in that last group, as the total expenditure is similar, if I little higher with the conversion. I've got a few tests in mind to make these three videos useful and interesting, so we'll get a more informed answer at that point. For today, I'd say get the Double E if you like the look of it. I think it's the best looking of the lot, and there are hydraulic conversion kits available for it (and DIY isn't overly complex, if you followed along alright in this video). Cheers

[@osksod1655]

Nice! What did you think of the new rgt's?

[@RCTNT]

Which ones? EX86170 Pro? We'll see, it's on the way for review here. Others? Already reviewed on my channel here, have a look through recent videos 👍

[@osksod1655]

@@RCTNT Yeah. Ive seen the videos youtube made. Always great content from you. Excited to see the challenger pro and shooter videos!

[@RCTNT]

Shooter? Am unfamiliar with that one, I'll have a look on their site.

[@psjoinery6]

Brilliant video again. I don't own any construction rc's but find them fascinating. Could the overheating issue be down to too much oil in the system? I'm assuming the oil will heat up under friction and then expand. If the expansion over pressurises the tank, would this further cause more heating and exacerbate the problem? Maybe drop the volume of oil? I'm no hydraulic engineer, so tell me to shut up if I'm talking crap. Obviously the oil cooler is a must in the real world, so must be in RC too. But in the meantime, is it worth a try to reduce the volume?🤷‍♂️

[@RCTNT]

You're half right, it does heat from friction. But it doesn't expand almost at all, that's a critical element in its design. The problem with heat is that it's viscosity drops, hence the need for a radiator. I've sourced one and it's ready to install, so I'll get to that soon.

[@demantoid418]

Thanks so much for bringing us along. 🫡

[@RCTNT]

My pleasure!

[@EnddyFishing]

changing the kit to hydraulic is far more cheaper than buying RTR.

[@RCTNT]

Absolutely, especially if you use the model I recommended near the end instead of the 1580 👍

[@chanozoc]

Injuring yourself doing this stuff is par for the course mate lol

[@RCTNT]

Haha isn't it just

[@AlphaPhaseSleep]

the crawler trend may be over, bcs most new releases are almost a toy grade and downgraded from what we knew like 5 years ago

[@RCTNT]

You've lost me there, sorry! You mean rock crawler? Seems alive and well to me and better than ever! Years ago we had to convert monster trucks into crawlers. Now that was a challenge. These days the sheer range and quality of boutique parts for best crawling is just mind blowing. Super exciting time for the hobby! If I've misunderstood though, please clarify. I am curious about what you mean! Cheers