On Mon, Mar 25, 2024 at 09:22 PM, Nevadablue wrote:
That¡¯s because people are on the wrong forum. Activists of all sorts have available spots to be ¡®active¡¯.?
Please stop the off topic nonsense. I am trying hard not to be nasty about this.?
For the record, I'm not an 'activist', just a normal person with normal concerns about what we're leaving behind for future generations. And you have absolutely no right to tell me what I should or shouldn't post. Anyway... If your eventual aim is to make a copy of the EMCO compound slide it could (IMHO) do with a few 'improvements' - ?- fine adjustment of angle. 'Tap it with a hammer' really doesn't work well :-)? Some kind of worm gear arrangement would be good. ?- tool holding. The options in practice (although there are three bolts available) are pretty limited, and seem a bit dodgy in use...I'm sure it could be improved. Cheers, Peter
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Re: unimat 3d model project
I think you got it. Sounds like I need to do a test print. Thanks!!!
I have a drawing from a fellow on youtube that has the dimensions of all the other parts of the tailstock. I have asked his permission to post his drawing here so I don¡¯t have to re-draw it.?
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Re: unimat 3d model project
Or maybe you were saying that's what it should be.? In that case, yea I believe so.? from the model I show it to be 35.946.? some googling says it should be 1.42" (36.068).? Not sure how close is "good enough" on these or what the tolerances were like on the OEM parts.
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Re: unimat 3d model project
I haven't measured anything from mine yet, just using files already out there.? Are you saying 36mm (and that model) is wrong??
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Re: unimat 3d model project
Thanks! I¡¯m not sure¡ the distance from the top of the arch that sits on the way bar to the center of the quill hole (vertical distance) should be the center height of a Unimat. That is 36mm.? 
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Re: unimat 3d model project
Try "Tail Stock v2" in the files, see if that works for you
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Re: unimat 3d model project
you can get a limited version of fusion (what they are now calling fusion 360) for personal use - scroll down the page here - its about 2/3 of the way down the page - or do a search for autodesk fusion for personal use. this is what I use and it is good for creating STL's Peter
------ Original Message ------
Date 25/03/2024 22:46:09
Subject Re: [Unimat] unimat 3d model project
Hey Guys, I'm late to this thread but I also would like to register my interest in a 'archive' of 3D models for unimat accessories ! I don't own one myself but go have an ax minster Sieg C0 Baby Lathe so with the right scaling or editing of the model many accessories could be useful to me also ! However I would be curious to know what file format everyone uses ? I suppose its STL if its purpose is for 3D Printing and with the right conversion that can be edited into almost any file format you could need but having trained in CAD I know that not all models are made equally. Perhaps not an issue if your just converting to STL and printing but if your converting back and then trying to edit said model then problems may arise :/ Still Interested however. I have only access to SketchUp and FreeCAD however although I would love to have free 'access' to Fusion 360 its just too pricey. Inventor 3d likewise and even Plasticity is too expensive for me :/
Kind regards,
Paul
On Monday, 25 March 2024 at 22:03:23 GMT, Nevadablue < nevadablue@...> wrote:
I see that Carl originally posted a link to the source files for the tailstock. I would have never found them without his help. /g/Unimat/topic/3d_model_of_unimat_tailstock/102496364?p=,,,20,0,0,0::recentpostdate/sticky,,,20,2,0,102496364,previd%3D1711403496010641653,nextid%3D1710417496875360663&previd=1711403496010641653&nextid=1710417496875360663
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Re: unimat 3d model project
Yes, that¡¯s the one. I never thought of METERS. LOL
if you can Rick, please do post a ¡®big enough to see¡¯ version.?
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Re: unimat 3d model project
I opened the stl one that is in the files section and it was also in meters, so I think multiplying by 1000 will get you to the right scale.?
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Re: unimat 3d model project
and I guess to be sure, are you talking about the linked onshape one?
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Re: unimat 3d model project
try x1000
When I open it, it says its "units" are in meters.? Should the bore/hole be 12mm?? That's what I show.?
I can export it and upload it here if that helps
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Re: unimat 3d model project
I tried it Mike, but it comes out half inch high.? This is what the stl viewer shows: (I use it all the time so I trust it) 
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Re: unimat 3d model project
That's great! I wanted to do some things like that, but! First, I was a stupid young punk in 1969 when I had a class in mechanical drawing, and blew it off. Over the last dozen or so years, I've tried several times to teach myself CADD, and failed miserably. Not enough time and attention to apply myself to it.?
Thanks to you, and your son!
Bill in OKC?
William R. Meyers, MSgt, USAF(Ret.)
Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement.? SEMPER GUMBY!
Expect in one hand, expectorate in the other. See which one gets full first.
On Monday, March 25, 2024 at 08:46:48 PM CDT, Barry Yankolonis <blyank@...> wrote:
Just to follow up on my previous posts in 'Watchmaker Spindle Play", I've finished my work on cleaning up the Watchmaker Spindle I was working on.? Several people requested that while I had it disassembled, to take some pics and make some drawings.? Well my son is a Mechanical Engineer and while visiting me several weeks ago, while I had the spindle apart, he completely drew up 3D CAD models of the WW watchmaker spindle and sleeve.? He needs to do a little clean up work and will send me *.stp and *iges files along with drawings.? When I get them will post them in the files section.? Hang tight, cause it might be a little while before I get them.? He is up to his neck in work right now, and on the road a lot soo... if it's not work related, it ain't happening right now.? But promise when I get them will post them.?
Yank Yankolonis
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Re: unimat 3d model project
Try? multiplying by 254 Tinkercad maybe in inches
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Re: unimat 3d model project
Just to follow up on my previous posts in 'Watchmaker Spindle Play", I've finished my work on cleaning up the Watchmaker Spindle I was working on.? Several people requested that while I had it disassembled, to take some pics and make some drawings.? Well my son is a Mechanical Engineer and while visiting me several weeks ago, while I had the spindle apart, he completely drew up 3D CAD models of the WW watchmaker spindle and sleeve.? He needs to do a little clean up work and will send me *.stp and *iges files along with drawings.? When I get them will post them in the files section.? Hang tight, cause it might be a little while before I get them.? He is up to his neck in work right now, and on the road a lot soo... if it's not work related, it ain't happening right now.? But promise when I get them will post them.?
Yank Yankolonis
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Re: unimat 3d model project
Beware of the tailstock. I started working on it and it is TINY¡ less than a millimeter in all directions. Just a dot when imported into Tinkercad. Now I need to figure out how to scale it properly. I actually like it better than the original, since it has flat sides. I was going to make accessories to fit it, but now I don¡¯t know what to do. I need to work out the center to center dimension of the ways and top of ways to center of quill and go from there I guess.?
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Re: unimat 3d model project
The models I'm doing I'll export as step files probably.? Not sure how many accessories I'll get done but I'm aiming to at least get the base machine fully modeled up.? Partially for my own amusement, partially to help make accessories later.?
Does fusion 360 not have its free tier anymore?? Most of the paywalls come in on the manufacturing side, modeling side was pretty wide open on the free version last I checked.
Thanks for the link to the tailstock!? That was actually the part I most dreaded haha.?
Between that and Rowan's drawings this is a huge head start for me.?
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Re: unimat 3d model project
Hey Guys, I'm late to this thread but I also would like to register my interest in a 'archive' of 3D models for unimat accessories ! I don't own one myself but go have an ax minster Sieg C0 Baby Lathe so with the right scaling or editing of the model many accessories could be useful to me also ! However I would be curious to know what file format everyone uses ? I suppose its STL if its purpose is for 3D Printing and with the right conversion that can be edited into almost any file format you could need but having trained in CAD I know that not all models are made equally. Perhaps not an issue if your just converting to STL and printing but if your converting back and then trying to edit said model then problems may arise :/ Still Interested however. I have only access to SketchUp and FreeCAD however although I would love to have free 'access' to Fusion 360 its just too pricey. Inventor 3d likewise and even Plasticity is too expensive for me :/
Kind regards,
Paul
On Monday, 25 March 2024 at 22:03:23 GMT, Nevadablue <nevadablue@...> wrote:
I see that Carl originally posted a link to the source files for the tailstock. I would have never found them without his help. /g/Unimat/topic/3d_model_of_unimat_tailstock/102496364?p=,,,20,0,0,0::recentpostdate/sticky,,,20,2,0,102496364,previd%3D1711403496010641653,nextid%3D1710417496875360663&previd=1711403496010641653&nextid=1710417496875360663
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Re: unimat 3d model project
I see that Carl originally posted a link to the source files for the tailstock. I would have never found them without his help. /g/Unimat/topic/3d_model_of_unimat_tailstock/102496364?p=,,,20,0,0,0::recentpostdate/sticky,,,20,2,0,102496364,previd%3D1711403496010641653,nextid%3D1710417496875360663&previd=1711403496010641653&nextid=1710417496875360663
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Forgive me for all the replies, I sure wish we could edit posts. I know this is not a forum, oh well.?
Yes, Rick, I agree. I think that many of the parts for the machine could be printed or made of softer material. I am considering making an entire tailstock, just because. I¡¯m looking at making the quill out of aluminum. Aluminum quill in a PLA+ headstock. The screw will be steel I think, again, just because.?
Lots of the projects that the little lathes make are made from brass and aluminum, and for me, now, plastic. Should be a good fit.?
Oh, another note on the thing I just made. That is a standard Unimat cross slide lead screw and hand wheel. Because I had it. I did order a 5mm lead screw and nut for this but decided to use the Unimat part. A few changes in hole size would allow the nice little chinesium lead screw to work.?
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Bill in OKC too