HOW TO: Ruin a Perfectly Good Design?

[@smashke]

Still can’t get over how quickly the production and quality of your videos have progressed. Your “own” style has steadily emerged with less emulating of other KZbinrs. Won’t be long before your own “catch phrases” emerge as well… Keep on keeping on, love the content!

[@hersch_tool]

Thanks very much, I really appreciate the positive feedback and support :)

[@williambowen7007]

Great video, especially your commentary, thanks for the detailed demonstration.

[@hersch_tool]

thanks for watching :)

[@sys2]

Its nice that people share their mistakes also =) I had an idea with an old briggs motor that i would change the liner in it ... i was told i stupid .. but i managed to rig it up in the lathe, bored the old liner out and put in a new one .. (machining mistake made it not oversizable) .. now i have a motor that is fixed in an unconventional way and it works great =) Keep on fighting .. no ideas are stupid when they acctualy work =)

[@hersch_tool]

Funny how that works out isn't it? Thanks very much for watching :)

[@CurtisGurley]

We all know you are gonna rebuild this to include dovetail or t-slots in conjunction to the magnets. I love your channel because its real. Keep your style up and your continued success is guaranteed. Thank you for taking the time to produce these videos.

[@hersch_tool]

Haha, yep you guessed it. And thank you very much, I really do appreciate the positive feedback. I never could have guessed just how awesome this community could be, or how rewarding this whole experience would turn out to be until I threw myself out there. I'd do it again every single time. Thanks again, and thanks for watching!

[@alanbazzano4717]

or possibly a roller bearing on the guide pin

[@petergamache5368]

Dovetails or T-slots are a really good idea. The magnets are still useful, so this wouldn't mean scrapping the original sliding parts - just re-milling the drive dog slots.

[@fv9607]

You took the words off my mouth, or more accurately "the idea off my finger tips"

[@viktorkorai5143]

Quite a good idea in my oppinion.. you could drill holes to each side of the slot through the body and the head part and put a spring loaded bolt there so when the magnets pull the head part the bolts are latching the head in place, and when you would like to remove it you just has to pull the pins up. This way the whole original design would be useful. I hope i could describe my idea well enough :) Keep up with these inspiring videos!

[@hersch_tool]

definitely a cool idea! Thanks very much for watching :)

[@EdgePrecision]

When it pulls out of the keys it will stop threading. Comercial die holders for turret lathes actually are designed to do this. So if you set a stop on your tailstock just so that the keys disengage just before the die hits the shoulder of your part it controls the thread length. So it’s a design feature not a mistake.

[@hersch_tool]

Yeah, exactly, what you said, that's what I meant to say... HAAHAHA!

[@_droid]

Failure videos are invaluable teaching tools. Honest people with noble goals are what we need more of!

[@hersch_tool]

I always learn the most from mistakes lol, maybe it's because they hurt more? hahaha. Thanks very much for watching!

[@johnathansmith9750]

Nice Idea. What about just cutting half dovetails so it draws itself in tighter when under torque? You wouldn't need to remake anything.

[@zoltannagy1813]

Nice job, even though the end result was not what you expected. "Learn from your failures" is very true. Thanks for sharing.

[@hersch_tool]

Yep, that's the idea :) Thanks very much for watching

[@Threadexpress]

I love your attitude! It is what I need to hear, I am always striving to be that positive. Cheers! Cliff

[@hersch_tool]

Thanks Cliff! I owe you an email btw. ;)

[@RustyInventions-wz6ir]

Very interesting. Nice work sir. What you said is very true. I totally agree with you.

[@hersch_tool]

@@RustyInventions-wz6ir thank you very much. It’s good that we give ourselves “permission” to try things and fail sometimes. Thank you for watching 🙂

[@RTSproductions1]

Hello at 3:15 into the video you are using a lathe tool and insert. I would like to get one. Can you tell me what they are? Thx

[@hersch_tool]

It's a Swiss style front turning tool. "TFX" by NTK cutting tools.

[@stringmanipulator]

I think you should have assembled it on the international space station 🤣🤣🤣 thank you for sharing your knowledge and work, and several hilarious comments in the video 😁👍

[@hersch_tool]

I'm still waiting on NASA to reply to my emails... thanks for watching!

[@CraigAndera]

Continue to absolutely love your videos. The message at the end of this one was particularly great. A friend and I talk a lot about our experiences in the shop. We are both hobbyists, and over the years we've come to realize that there is a lot of implicit pressure to be "productive" in the shop. For starters, it's not really clear what that means. Projects per hour? Maybe - I don't know. And if it were my job, I should probably figure that out so I don't go out of business. But as a hobbyist, we came to realize the correct thing - for us - is "happy minutes". Like, the more of those I get, the better. If that means going into my shop and just fondling the tools for half an hour, that's what success looks like. I didn't make a thing, but I got 30 happy minutes. Winning. Everyone has to figure out what success looks like for them. I just think the default that it seems we all tend to drift towards ("productivity") is not necessarily the correct one for everyone.

[@hersch_tool]

I could not agree more, amen to that. Follow your joy, and you'll never find yourself on the wrong path. Thanks very much for taking the time to watch, and thank you for the positive feedback. I sincerely appreciate it.

[@Jeff-KN6UDG]

Great design modification. You have many options to lock the die holders to the collars. A set screw would need an additional tool. Try pins or some type of twist or friction lock. Appreciate your dedication. 👍👍

[@hersch_tool]

Thanks very much. There will definitely be a follow up video coming with V2.0 :) Thank you for watching!

[@DaveMcIver]

Well stated my friend. We had a saying back in the day when I was learning the trade, "The guy that's never made a mistake has never made anything". Every failure is an opportunity for learning and improvement.

[@hersch_tool]

I like that saying, think I'll keep that in my back pocket. Thanks very much, and thank you for watching!

[@robertharper8776]

Thanks for a good video ! I like your way of thinking, Edison and Henry Ford are my heroes keep up the good work!

[@hersch_tool]

Thanks very much for watching :)

[@nf4x]

Dovetail the slot in the mandrel and make a new interchangeable die holder with the matching dovetail. Et voila! Retention and the power of magnets each working in their own axis. The strong one where it needs to be strong, and the weak one orthogonal to it providing quick interchangability.

[@hersch_tool]

Perfecto ;)

[@EitriBrokkr]

Should permanently mount a vise to a large angle plate. Mill problem solved If you changed the drive tangs to dovetails it would solve all the issues...

[@hersch_tool]

Yeah I think dovetails are the way to go. I'd considered the vise thing, but it doesn't really solve much unfortunately. It presents its own challenges and limitations. I think using a vise in that config when necessary, like in this video, works well, and then just building setups that suit the operation. I'm getting used to it, it's more a change in thinking and approach, but it's not too bad once you start getting your head around it and shake the "bridgeport" style vise paradigm.

[@ollysworkshop]

You made a really great tool. If it worked perfectly first time, you weren't trying hard enough! Others have suggested a dovetail, which is great. A depth stop system using the key feature as a clutch would be awesome though. I'm thinking a spring pushing the sliding section out (to keep it connected to the die head) with some method of stopping the guide pin at an appropriate point? Just my thoughts. Great video 👍

[@hersch_tool]

That is a REALLY cool idea. I'll definitely be thinking through that design for V2.0 (Love your channel btw) cheers!

[@NightsReign]

When it comes to this style of tap/die holder, I really like the version designed/machined by Maurizio Guidi (channel name is '"Hobby Lathe"Maurizio Guidi' here on KZbin) since it allows for your 'quick change' concept, by not needing it at all, but also incorporates a clutch release so you just set the tailstock at the thread's length and go, instead of chasing the thread with the tailstock. He is an Italian speaking Italian, but he's preemptively translated a lot of the text toward English-speakers. Also, setting the captions to 'Auto-translate to English' works really well (most of the time). Anyway, this seemed as good a time as any to shout out one of my, if not my #1, favorite hobby machinist channels. For a shop that's a fraction of the size of most on Machinist KZbin, and no dedicated mill (in fact, his lathe is the foundation for everything), he produces some gorgeous tools! Sorry, got a little off-topic there. You're at the top of my list too, Hersch_Tool! I'm definitely not throwing shade at you.

[@hersch_tool]

@@NightsReign oh that sounds really cool. I will definitely have to look him up and subscribe. Thanks for the info! (And don’t worry lol, no shade taken ;)

[@eddiegarcia7959]

Great video!!! Thanks for posting!!!

[@hersch_tool]

@@eddiegarcia7959 thanks for watching!

[@ReubenWilder]

Could you add a dovetail set on the inside engagement face/side of the quick change die holder? so that the rotational direction pulls the quick on section closer to the floating section?

[@captainraypaul4919]

I do my videos on live stream, that way I can consider what ideas viewers have, sometimes good sometimes not. Lol anyways,great video. Cheers!

[@hersch_tool]

Thanks very much for watching! :)

[@hu5116]

How to make it work: change your tabs on the die holder so that they have a little lip on them, and mill a mating slot for the lip to go into. So you take that die holder, and then insert it into the slot and then rotate so the lip catches the slot and now it can’t come out! Obviously put the lip on the side so the rotation keeps the lip pressing into the slot. I don’t think you have to redo the part. I think you can just mill these features into the existing part(s) and save it. Then you still end up with an improved fixture!

[@bdove7939]

Good video and a good idea. Sometimes good ideas just don't work...yet. give it some time.

[@hersch_tool]

Amen to that, we get a little bit better with every try. Thank you for watching!

[@lucjansadovsky1841]

Why not just add a small ball bearing on that pin that's in the slot?

[@hersch_tool]

That might help :)

[@MyLilMule]

As Adam Savage said quite often, "failure is always an option!" 😂 Hey, you may never know until you try, right? TBH, giving the naysayers and clowns any air by acknowledging their existence at the end of your video is the only real mistake you made, IMHO.

[@hersch_tool]

True story, I used to work for a tech magazine in SF and "met" Adam Savage a couple times. Not really "met" met, but was in the same room with him and awkwardly said hi.

[@MyLilMule]

@@hersch_tool Very cool! I'd say that qualifies! I "met" him and Jamie Hyneman on their stop in Cleveland on the "Behind the Myths" tour. We got VIP tickets that includes a meet and greet backstage, so I did get to interact with them a little and got a picture with them. But it was hard not to get starstruck.

[@kentswan3230]

Good video. The simplest way to 'fix' the tool is to replace one or both magnets with a bolt into the base part. You still have the interchangeability of multiple die holder heads on a common base tool. Actually, that's a nice tool to have because different heads can handle both imperial and metric dies which have different outer diameters.

[@hersch_tool]

Yeah that would definitely work well. And that's exactly right! That was kind of the idea, one tool that can handle all of the various sized dies that you might need to use. Will probably do a V2.0 vid fixing the issue. Thank you very much for watching!

[@syldysnya]

Awesome shots and editing!

[@hersch_tool]

Thank you!

[@gworx-247]

Hey there, nice to see you doing stuff wrong! : ) You are right - thats the way inventing works...in my littele homeshop maybe 30% of the new thought out stuff goes wrong the first time. So what!? After that you know much more....doing stuff ist even better than doing nothing. By the way...great filming and editing! 👍 Greetings from Berlin! 🐻

[@hersch_tool]

Haha, yep I do things "wrong" a LOT... Good to see you btw, Cheers!

[@Chromevulcan]

Just drill some pins to lock the die holder to the body. Iterative design!

[@keesmotormuisvanbergen]

A wonderful video. So tru and honest. I am not even capabel to design things like this. Watching lots of video's .... reading .... still so much to learn i started to understand the basics. At the age of 14 years old i had to shoos my profession. 1) metal worker with lathe 2) elektrician. It became the second choice. Now... almost 50 years later and after more then 15 years started with my first small lathe (Sieg) i finally have a lathe and mill i alwyas wanted and that fits into my small garage. I love your video's even it is to high for me. But still.... littel things a start to understand. There are many many professionals that make lots of video's like you do that i realy respect.

[@hersch_tool]

Thanks very much! I too spent many years in a profession that wasn't really fulfilling my soul. We are all learning every day, and small steps are what move us forward. Enjoy the journey and celebrate your successes even if they might seem small to you. Because to someone else, the things that you're able to do will look like magic. It's all about perspective. Thank you very much for watching, and thank you for the kind feedback!

[@henriknutsson8500]

quick fix for the design. just add opposing slots to the keys and keyways so that they can't separate without turning back a fraction of a turn. keep the toolless quick change without compromise.

[@TradeWorksLLC]

I think you could still keep it “quick change” if you used a small taper instead of a straight channel. Probably could use dovetails cutters or even some shallow angle as I can’t imagine you’ll need much to counter that lifting force. While it wouldn’t be as quick, I would still classify it as a quick change even if you slide the holder from one end of the channel and If you incorporated a stop at the other end so that it would come to rest at the center every time your concept would still be intact. Leaving the magnets would be fine so you just need to modify the floating portion and make a new die holder so your project won’t simply be one of those life learning lessons.

[@1crazypj]

It looked like you used it 'dry'? Would oiling all the sliding surfaces work? I like the design and concept, maybe extra magnets in the drive dog slots would keep things together?

[@hersch_tool]

There's grease on the pin/in the slot. I think dovetails is a really good idea, a few folks have mentioned it. Stay tuned, I'll be fixing it in an upcoming vid. Thanks for watching!

[@1crazypj]

@@hersch_tool I thought you wouldn't use it 'dry' but needed confirmation. Dovetails wouldn't be a lot of extra work either as they don't need high precision in this application.

[@tac0ninja76]

Instead of square drive pawls could you use a dovetail??

[@hersch_tool]

I think that's the way to go :)

[@Unrivaledanime]

Why did you not make the attachment a twist lock like a commercial air hose ?

[@hersch_tool]

Like a bayonet mount? Also a fine idea. Cheers!

[@VanoverMachineAndRepair]

Excellent Job!

[@hersch_tool]

Thank you!

[@Warped65er]

Liking the dovetailed V 2.0 (your replies to previous comments) already, as well as the attitude. Thx for the vid.

[@hersch_tool]

Thanks for the watch!

[@willardlentz3044]

If you don't try it, you will never know if it will work or not. Some people are just ignorant and don't care if they show it. My Dad always said If you fail try again you may succeed and now you have learned something

[@hersch_tool]

Amen to that, wise words from Dad.

[@ferrywobma1836]

I think the concept of this solution is perfect. Is it still an option to provide the die with an "L" shape instead of straight? So that the magnets only engage after a small rotation (30 degrees). This prevents the 2 parts from coming loose. Greetings from the Netherlands.

[@hersch_tool]

Thanks very much. And that's definitely a valid idea!

[@Preso58]

Totally agree with your closing statements. Have a go. Learn from failure. Never, never give up. Regards, Preso.

[@hersch_tool]

Thanks very much, and I love your channel btw, been a viewer for a long time. Cheers.

[@douglasthompson2740]

What kind of an insert is that which you are using?

[@hersch_tool]

It's a Swiss style front turning insert. Thanks for watching btw :)

[@howardosborne8647]

WARNING! THIS COMMENT SHOULD NOT BE MISTAKEN AS BEING ONE OF THE 99.9% OF POSITIVE COMMENTS: This malfunction is what happens when you let the International Space Station pull the threading apparatus rather than push it.....end of message 😂

[@jimsvideos7201]

What if, instead of the straight-sided dogs between the body and toolholder, they were slightly dovetailed? The angular contact could provide force to keep the two pieces together.

[@hersch_tool]

Yep that is a fantastic solution. I think a V2.0 might be in order ;)

[@jimsvideos7201]

@@hersch_tool If the angled cuts are troublesome you could drill radial holes and use dowel pins to make the interface too.

[@olieboer]

This is also what i was thinking, dovetails, or for a quick fix, in stead of a set screw, a slip fit through pin. That way it is still able to be changed without using tools.

[@mattylarkspur9858]

came here to suggest this exact thing!

[@jollyrodgers777]

I really like that you used the horizontal mill for the milling and drilling. I have a tiny Diamond Tool Co B12. It can be quite daunting to setup parts, and you showed the capability of the humble horizontal mill!

[@hersch_tool]

@@jollyrodgers777 they really are cool machines to use and very capable and versatile. I’ve been slowly learning to change my direction of approach to better use it. It’s a learning curve, but it’s also a lot fun. Thanks very much for watching!

[@camillosteuss]

Great to see that you brushed off most of the loose rust off of the rod! But did you notice the amount of powdery rust generated by the cutting? You can literally see a whole bunch of it being shed with the initial chip on the first pass, as well as you can notice it on the chuck... Take care with that shit, it is abrasive, it wears the chuck jaw slots, the spiral, the pinions, the ways, literally everything where it gets caught and rubbed between... I generally grab a handful of old bearing grease and do the thing that cost Onan his life but with the piece, covering all the black rust and trapped red rust with the grease, which does not get flung off as easily as oil, and it for the most part confines the grit generated to the cutter surface where it gets smeared as an abrasive greasy paste... If you want to avoid the toxic fumes that grease and oils give off, you can consider getting coconut oil(solid when at room temp), if you can find it cheaper as virgin oil, even better as it will smell like heaven, but if refined is cheaper where you get it, it works just as well, but without the nice smell... Coconut oil is great for that, as it both lubricates, and when it evaporates, it does not give off madly toxic fumes... It also has antifungal properties if i recall right, so if it drips into the machine oil(coolant) sump, it does little to no harm, as it is both oil and an agent that does not lend itself to scum growth(tho, bacteria and other scum do exist which can live in coconut oil when it goes rancid with age and oxidation)... Tho, i guess that a good shopvac attached to the toolpost and positioned well is gonna do great if you wanna go dry at the first try... Also, why do i recognize myself in that 0grav cyl. grinder suggestion? Speaking of which, you could do almost as good as that with just a regular, hydraulic slide, diamond lathe but using CBN instead of the dia tip... On a less funny note, the slot feature can be retained, the quick change is not an issue, your choice of a slot is an issue, you should`ve gone with a dovetail slot or a t-slot for the quick change element... That would provide you with a ridiculous grip in axial direction that can`t be overcome by forces that are generated as a result of having the sliding body drag along that pin... It is much more fucky than a straight slot, but it provides that which a straight slot never can - axial retention... The slider needs just be modified and the attachments need to be remade, but for the most part, the current main body parts lend themselves to such an upgrade... Best regards! Steuss

[@hersch_tool]

Lol, I mean I didn't say it... But yeah, definitely a dovetail is the way to go I think. It's funny, it's so obvious but also so easy to miss lol. And I just clean of the machine after machining the nasty steel. I knocked off as much as I could with the wire wheel first though.

[@hersch_tool]

@@camillosteuss Are you gonna video the solid tool post? I'd like to see that, I've seen others be really happy with that mod.

[@camillosteuss]

@@hersch_tool oh yeah, i`ve already got a nice piece picked out, but i`m an absolute retard when it comes to recording... And the space is an absolute mess, so it`s damn hard to manage anything really... But as long as i don`t get to building the proper shop, it is as it is... I have some ideas for the solid toolpost mount, along with a few other mods, some quite unorthodox, especially for a minila, but we`ll get to that later down the line... Best regards!

[@voodoochild1954]

I think it was a great idea nonetheless. Version 2 will be that much better. 👍🏻

[@hersch_tool]

Thanks very much! And you got it, that's the idea :) Thanks very much for watching!

[@TobaccoTooling]

What type of tool holder and inserts are those in the first part of the video? The ones with that big relief groove/radius cut in the face?

[@hersch_tool]

It's a Swiss style front turning insert.

[@maciejr6602]

Hi! did you think of adding the spring to this design? or make dovetails instead of tright grove?

[@hersch_tool]

I think a dovetail would be perfect! V2.0 might be incoming lol

[@maciejr6602]

@@hersch_tool thx for responce :). I hope I am not to repetetive but keep good work, I think you got this :)

[@AlexNaanou]

No set screws needed, just mill a dovetail on the attachment.... Should even work on the current part, just make sure to make the dovetails go through the center-line =)

[@pikeyMcBarkin]

very good video. Thank you

[@hersch_tool]

Thanks brother!

[@jasonhull5712]

Hey Man, how do you like that Shars live center. ? It looks really good quality, and the blunt tip makes me feel it’s more robust.

[@hersch_tool]

It's a good center. In general, I've had good luck with Shars tools. They seem to be a higher quality when it comes to import tools.

[@Cookie-cn2jc]

Excellent counsel!

[@hersch_tool]

Thanks very much!

[@ianday38]

I came here to suggest a dovetail and sliding the holder in from the side but I think everyone else has suggested it too You could add a small collar or bearing to the pin to reduce the friction too though.

[@PatriotPainter]

I think it could still work. Just make it spring-loaded to help overcome the friction on the pin. Btw, most of those naysayers you mentioned have probably never even touched a machine tool.

[@hersch_tool]

Definitely a cool idea. And I think you're probably right ;)

[@joell439]

yep - I had fun watching another exciting episode. I wonder is all is not lost? I can imagine a design that twists into a magnetic latch. A design where the quick change die holder is rotated into position and becomes constrained axially by an ear or tab. And the magnetic force keeps the ear in position. 👍 Maybe you can noodle on that 💡?

[@hersch_tool]

Haha, stay tuned... And thank you very much for watching!

[@Jack_Connan]

A question from a person with not a lot of experience . Would it help to add a bearing on the bar that stops the rotation , that runs in a larger slot on the main body ? It should cut down the pin's friction in the slot !

[@hersch_tool]

That's definitely a valid idea!

[@zachaliles]

If you had never built this and found out it failed you'd never know.

[@hersch_tool]

Amen to that :) It's all part of the journey, and I love every minute of it. Thank you very much for watching!

[@glennmiller299]

Thats a nice job. you could modify the tenon and slot into dovetails which would stop it pulling off and a simple ring over the OD's to stop it moving sideways.

[@hersch_tool]

Thanks very much. And yep, I think dovetails is gonna be the fix. Will do a follow up vid for V2.0 I think. Thanks very much for watching!

[@Trainwreck1123]

Is there some secret youtube machinist training bootcamp out there that is teaching all of you newer channels how to produce videos so well? No really, is there? I want to go to it so I can start filming and sharing my new shop build :D

[@hersch_tool]

@@Trainwreck1123 haha, thanks very much! No secret camp unfortunately. Just a lot of hard work, and maybe a little dash of insanity required lol. But if it’s something you want to try, then you should do it! Just jump in feet and get started 🙂

[@viktorcharlie1522]

I'm no machinist, and I'm just taking a shot in the dark, but could you cut the slot for the quick change die holder thingy and the main body whatsamajig, as a dove tail? I figure if you leave a little slop in the tolerances and keep with the magnet idea, you can still have a quick change set up that keeps the die holder in place. Again, I'm just some dude who enjoys your videos and has no idea what he is talking about. Love your content, and hopefully , on these days, I'll be able to get a mill and lathe and can start tinkering around.

[@hersch_tool]

@@viktorcharlie1522 yep, that is a fantastic idea! Stay tuned, you might see a 2.0 in the future lol. And thank you very much, I really appreciate it! Also got my fingers crossed for you that you find some machines to play with!

[@tomnielsen3661]

Great job! for those of us that are learning, think about all of the things that you just learn by watching this being made. One more thing, if you added more or strong magnets would that make a difference?

[@hersch_tool]

Some folks have suggested using dovetails instead of the 90 degree slot which I think is a great solution. I'm afraid the magnets alone just aren't going to do the trick. Might do a follow up "V2.0" vid using dovetails. Thanks very much for watching!

[@dariodamico3033]

I'm gonna make a die holder soon as well. Beside using stronger magnets you might try to reduce friction between pin and slot by putting a bronze bushing or a small bearing between the pin and the slot, the rolling contact should produce at least 10 times less friction. Just let me know if it works if you try it xD.

[@hersch_tool]

Thanks, I'll definitely make sure to do a follow so stay tuned. And thank you very much for watching!

[@ellieprice363]

Your interchangeable die design is good but don’t use magnets. Four magnets strong enough to resist pullout will be difficult to remove and attract chips when you store them. Use a vertical .250 dowel pin on top inserted into .251/.252 holes in the die heads. .252 slots should be finished very smooth on both sides. A .250 hardened pin should go all the way through the tool to engage with the .252 slots. If done very carefully it should work without hardening the slots. A little oil or light grease will help the body slide without jamming.

[@grippgoat]

Could you have used dovetails on the interface of the quick change part?

[@hersch_tool]

Yep, I think that's the solution! Might do a follow up with dovetails. :) Thanks very much for watching!

[@go4peanut471]

Could you add a catch to it that would retain its quick changiness while fixing its lack of retaininess? Also, your lathe chuck seems to be a tiny bit orange.

[@hersch_tool]

@@go4peanut471 yeah possibly, some folks have also mentioned dovetails which I really like as an idea. And that’s the dust from the rusty old steel I was using lol

[@ryebis]

What is that turning insert you used there at 3:08, haven't seen that before. You never learn anything by not doing something, unless of course that's something that can possibly tear off a limb or kill you. Always experiment and find better ways to do things.

[@hersch_tool]

It's a TFX Swiss style front turning insert made by NTK cutting tools. And I agree!

[@jasonhull5712]

Try cutting the “protruding tangs” into a dovetail ? Or yeah, just run a set screw in the side. Still a cool idea though. 👍

[@peterconnan5631]

Nice job! Two possible fixes. Replace the anti-rotation screw with a pin-and-roller setup. If that doesn't work, DOVETAIL VIDEO TIME! 😊

[@CrazyT0sser]

how do you like plasticity compared to other cad suits?

[@hersch_tool]

It's actually shapr3d that you're seeing in the vid, and I like it a lot. It's perfect for my needs. It's relatively cheap, it's powerful enough to do whatever I need it to, but also easy enough to learn to quickly get started modeling. Also the drawings module is very intuitive and perfect for generating my shop drawings.

[@CrazyT0sser]

​@@hersch_tool ooh, i must've confused the UIs. Huh, shapr3d pricing isn't too bad either, bit sad it's yet another subscription based software. but oh well. Thanks for reply and your work!

[@joergengeerds360]

@15min it works perfectly, great feature.

[@hersch_tool]

haha Auto-stop, a feature not a bug... Thank you for watching!

[@rjay1674]

Geez dude, I'd give up one of my kids, well the youngest one he drives me nuts, just to be able to turn a morse taper like you. Once again thanks for a great video.

[@hersch_tool]

HAHAHA, thanks very much, but you can! Just takes a little practice ;) Thank you for watching!

[@robburley9494]

Hi do you think a helper spring would improve things?

[@hersch_tool]

Definitely a cool idea, worth exploring!

[@Dogfather66227]

I'm not exactly sure how I would do this because I've never built one exactly like yours but you might try spring loading the die holder component on the MT mandrel somehow to help overcome the sliding friction. I have a dual cone-clutch variety myself and it's not perfect either. As a back-stop I should offer that someone once told me that you're never a complete failure since you can always be used as a bad example. It's all good...

[@hersch_tool]

Hahaha, I like that quote. ;)

[@robertlong9029]

Add more or stronger magnets or instead of the locking slot being square make it a dovetail and slide the pieces together sideways and the dovetail will prevent the from pulling apart

[@hersch_tool]

Yeah I think the dovetail is a great solution. Might do a follow up at some point soon with the dovetail. Thanks very much for watching!

[@paulrayner4514]

wise words

[@arnoldrios1606]

Brilliant design. Just use a dovetail slot.

[@hersch_tool]

That's a fantastic solution!

[@ThantiK]

Easy fix, install a ball bearing on the pin that it slides on.

[@hersch_tool]

@@ThantiK that could work for sure. Thanks very much for watching!

[@ErikBongers]

No need for set screws. Look up the wiki for Bayonet mount.

[@hersch_tool]

Very cool idea, thanks! I'm kicking around some different options, getting a lot of great ideas from comments. So will definitely do a follow up sometime soon.

[@Andrew_Fernie]

What you should have done is mark a line with your calipers. That always gets the 'engagement' up 😄

[@hersch_tool]

lol, I can't disagree... 😅

[@joergengeerds360]

the anti-rotation tang is most likely not necessery, as the tailstock most likely doesn't have the corresponding feature. buuuuut, if you use a MT attachment for your QCTP, it becomes very much useful

[@hersch_tool]

My tailstock quill does have the slot for the tang, and in general I figured it can't hurt either way. Also it's a safety feature in case I cut a bad taper... lol

[@bobweiram6321]

Instead of using magnets on the slot did you consider using a dovetailed slot? The quick change can just slide radially in place with the die holding it in place once engaged.

[@hersch_tool]

Yeah that's the perfect solution. I will probably do a follow up video soon showing making that dovetail version for the fix. Thank you very much for watching!

[@mike9500]

International space station. 😂😂😂😂

[@TheR3valation]

Drill thru the magnet holes, drill and tap, and bolt 2 pcs together

[@jonirish323]

Have you ever considered selling the parts that you make? Once I get my shop setup, I am definitely going to try and make one, but I would really luke to purchase one that is known good.

[@hersch_tool]

Yeah I have sold some parts that I've made, feed screws and replacement parts for hobby lathes. I would love to make and sell quality tools for fellow hobbyists.

[@joergengeerds360]

why not integrate a spring, like a tap follower? it would help in this context, and it would be something not seen in other tools yet

[@hersch_tool]

Very cool idea

[@LE-6920]

Add else more 4 magnets and everything will be fine!

[@Rustinox]

If you don't try, it will never work. Just go for it.

[@hersch_tool]

Amen brother

[@zl3434]

:-)

[@jonirish323]

Did u try adding a couple more magnets? There appears to be plenty of room for them and if it works…

[@TobaccoTooling]

Is that shapr3d? I hate that cad software. Switched to fusion and I could never go back lol

[@hersch_tool]

Funny, I did the exact opposite lol. I switched to Shapr3D when I got priced out of fusion. And once they added parametric modeling, I can't see forking over buckets of $$$ for fusion any time soon. I really like shapr3d a lot now actually.

[@TobaccoTooling]

@@hersch_tool I use the free version of fusion so money is no issue and I used shapr before they had parametric modeling and I still found it to be a lot less efficient and intuitive than fusion. Maybe they changed things up but that software was designed to be used on an iPad. It doesn’t have the features fusion does that’s why it’s cheap. You get what you pay for.

[@maurorivarola2704]

how about a dovetail sliding quick change floating tailstock Die holder? maybe that will adrees the issue

[@hersch_tool]

Yep, I think dovetails is a great idea

[@scottbujold]

What if you use a dovetail instead of a tang design? You could still use the magnets to keep it in place and it would still be a quick change design you would just need to slide it in from the side instead of coming in from the end. 😉

[@scottbujold]

LOL, after reading more of the earlier comments, I see that I’m not the first to suggest this. 😂😂

[@hersch_tool]

@@scottbujold Haha, still a good idea nonetheless!

[@leonida-alexandrudiaconu8660]

What if instead of magnets and straight pegs you machine a dovetail? The only difference will be you will slide it into place from the side. Besides that, great execution of the design. Keep up the good work.

[@hersch_tool]

Yep, that's a great idea. Thanks very much, and thank you for watching!

[@jebowlin3879]

Dovetail maybe?

[@hersch_tool]

@@jebowlin3879 yeah I think that’s a great idea. V2.0? lol

[@joesayre838]

What if you was to make the ears dovetails and leave the magnets in and all you did was slide it in from the side it would stay locked on

[@hersch_tool]

Yep, fantastic solution

[@BogdanS92]

Maby dovetail instead of straight slot? It will still be quick change

[@hersch_tool]

I think that's a great solution

[@WalterWojcik]

Just put a skateboard bearing on that screw! Problem solved!