Re: 3d printed steady rest for unimat 3/4
Yes I bought the commercial one then did the drawings from those, as even those commercial ones are very hard to find, I am a draughtsman by trade do the drawing was easy.
Thanks Peter Fusion 360 is an Autodesk product it is free to the non commercial and student user. I was a Senior Civil Engineering Draftsman before computers were common place on everybodies desk. My drawing technology was Rotring ink pens on Tracing paper or film and expensive scale rulers. I seem to recognise your name did you produce drawings for the U3/4 Threading Attachment. Because I just 3d printed the gears for it 
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Re: 3d printed steady rest for unimat 3/4
You folks never cease to amaze me with the crafty solutions you come up with for things the factory could have done or done better. I recall there was a machine shop in the UK which made a compound feed unit that mounted on the carriage for the Unimat SL/DB. Any one recall who that might have been. Alternatively has anyone come up with one on their own?
Prisoner in NC, USA
William K. Macy 52 Lincolnshire Loop Asheville, NC 28803 Email: wmkmacy3@...Mobile: 401-439-1705 Telephone: 828-505 1192
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Thanks Peter
Fusion 360 is an Autodesk product it is free to the non commercial and student user.
I was a Senior Civil Engineering Draftsman before computers were common place on everybodies desk.
My drawing technology was Rotring ink pens on Tracing paper or film and expensive scale rulers.
I seem to recognise your name did you produce drawings for the U3/4 Threading Attachment.
Because I just 3d printed the gears for it
<20200403_134122.jpg>
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Re: 3d printed steady rest for unimat 3/4
Thanks Peter Fusion 360 is an Autodesk product it is free to the non commercial and student user. I was a Senior Civil Engineering Draftsman before computers were common place on everybodies desk. My drawing technology was Rotring ink pens on Tracing paper or film and expensive scale rulers. I seem to recognise your name did you produce drawings for the U3/4 Threading Attachment. Because I just 3d printed the gears for it 
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Re: We seem to be thriving!
Hi,
The Unimat forum is great by every standard. Am new here but I have already learnt a lot from your a archives.
Queen
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Re: We seem to be thriving!
Brian:? So do I? I am looking for specs on the capacitor on a PLAIN JANE run of the mill NON CNC Compact 5 spindle motor.? I can use my lathe if I "Armstrong " the chuck to get it to go.? Once it is running all is good.
Ed
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Re: We seem to be thriving!
I agree with Keith. I appreciate everyone's posts. I'm new to this and tend to listen/read more at first before asking too many questions.? I wish there were people in the compact 5 group.
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Re: 3d printed steady rest for unimat 3/4
ok, files are uploaded, i have put the mk1 and mk2 stl's and the mk2 CAD files in autocad and bentley microstation.
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Re: 3d printed steady rest for unimat 3/4
I will have a go at putting the files up, I am already on MK2, with the nuts inset into the body. As an ex drawing office manager, I just do my modelling in a full cad package, generally autocad. But I can do it in others too.
On Mon, Apr 27, 2020 at 1:36 AM +0100, "Mike Gidley via groups.io" <mike.gidley@...> wrote:
Hi Peter?
Would you mind putting the modeling files in our files section or somewhere like Thingeverse.
Also what Modeling software are you using I'm still struggling with Fusion 360.
There are easier ones but Fusion looks the best.
With Covid19 restrictions making me stay at home I have the time to learn a new skill.
Thanks in advance Mike
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Re: 3d printed steady rest for unimat 3/4
Hi Peter?
Would you mind putting the modeling files in our files section or somewhere like Thingeverse.
Also what Modeling software are you using I'm still struggling with Fusion 360.
There are easier ones but Fusion looks the best.
With Covid19 restrictions making me stay at home I have the time to learn a new skill.
Thanks in advance Mike
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Re: We seem to be thriving!
Blimey Slough !
Know it well , although a long time ago .
Worked for ICI Paints Division in the research dept .
Played lots of football round and about Windsor? - Castle and all
.
Unbelievable weather , pity about the lock down
Keep safe and let's get though this nasty virus .
On 26/04/2020 18:03, ksangus via []
wrote:
On Sat, Apr 25, 2020 at 02:34 PM, Raymond King wrote:
Just because not everyone contributes, that does not
mean it's not appreciated .
That is true, and good to know, but the rate of posting messages
is the only measure we have of activity. Anyway, the numbers are
encouraging, and that will do for me!
Keith, in sunny Slough
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Thank Jeff,
I read one in a town library and it's a good read. I have always been looking for the opportunity to own one.
Thanks for sharing.
Queen
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Re: 3d printed steady rest for unimat 3/4
Hi Les,?
I am liking that, I drive an SL.?
I don't have access to a 3D printer at the moment. Most of the ones I know of are printing mask bits.?
I would be interested in the necessary files for that for later, is there going to be a later??
Stay safe,? James, locked down in sunny Fife.? Sent from my Sony Xperia on the hoof
This email contains recycled electrons
Thanks for the reply.
I used 20% fill and 1.2 wall section, feels quite rigid. The arms are printed on a 3D Resin printer, I am do the body in that later.
The bearings (the brass looking parts) are 4mm ID, 9mm OD x 4mm wide, these are still in the post. I also done have the small screws yet.
I suppose it all depends on what you use them for. Mine will probably be to hold 6mm + bars the centre drill the ends.
--
James Batchelor?
Dunfermline, Fife, UK.?
07805 207238
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Re: We seem to be thriving!
On Sat, Apr 25, 2020 at 02:34 PM, Raymond King wrote:
Just because not everyone contributes, that does not mean it's not appreciated .
That is true, and good to know, but the rate of posting messages is the only measure we have of activity. Anyway, the numbers are encouraging, and that will do for me! Keith, in sunny Slough
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Re: Clamping large dia. for centre-drilling
On Sat, Apr 25, 2020 at 01:34 AM, OldToolmaker wrote:
Keith,
That sounds like a good method to insure close T.I.R. I have an existing 1/4¡± Emco drill chuck with T.I.R. issues since new back in the fifties or sixties. It is threaded 12mm x1mm and has around .005¡± T.I.R. runout. I also have two new old stock 1/4¡± Supreme key drill chucks with a Jacobs taper having an 8mm taper shanks to fit the watchmakers spindle. They both have a small amount of runout. I would have expected better TIR from this tooling but it is acceptable.
Dick
I got a precision Jacobs chuck, 4 mm capacity, aiming to bore it out to use on the DB/SL. Once I looked at it I reakised that boring it out would mean it would fall apart, or at least be seriously damaged. Then I found I was equipped for collets (the right combination of parts arrived)? so I left it alone. Once I got the ER11ram for the tailstock (GGtools), I don't think I've used a drill chuck since. ER11 goes up to 7 mm, the usual drill chuck from Rohm is 6.35 mm. Dunno where that small chuck is now. Keith
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Re: 3d printed steady rest for unimat 3/4
You may be able to buy a unimat SL fixed steady on Ebay usa, but I haven't seen on for sale in Europe for the last 6 months.
I can tell you that the cost for 3D printing form Shapeways, a 3D printing company. would not be cheap I am guessing more than $100.
When I've proven my steady I'm going to post them here for all to use.
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Here is another one of my favorites. The Wonders of Machinery Hall. This is a large book 8 1/2' x 11" with 192 pages. It walks you through the construction and the expositions of the Machinery Hall of the Chicago Columbian Exposition of 1893 ( Worlds Fair) it is full of old photos and drawings from a 127 years ago.?
?Jeff
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Re: 3d printed steady rest for unimat 3/4
What is the cost of having a steady rest commercially printed for either an original Unimat or a Unimat 3, or who is selling printed ones and for what price?? I want to compare printed ones to buying original on?Ebay.? ?I am also thinking that I can sell an original one on Ebay if I no?longer need it, but maybe a printed one has little resale value? There is no need to tell us that you have this great printer and CAD system, you can design and print your own, for almost no money.??
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The "Echoes fro Oil Country" series are good to read. they are many different stories about early machine shops (steam powered) and how they had to go out and make/repair equipment. Most of these are from the very early American Machinist magazines going back to the 1800's. This books are on sale now at close out prices and are very cheap. i just ordered a dozen more books.
?Jeff
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Re: 3d printed steady rest for unimat 3/4
Thanks for the reply. I used 20% fill and 1.2 wall section, feels quite rigid. The arms are printed on a 3D Resin printer, I am do the body in that later. The bearings (the brass looking parts) are 4mm ID, 9mm OD x 4mm wide, these are still in the post. I also done have the small screws yet. I suppose it all depends on what you use them for. Mine will probably be to hold 6mm + bars the centre drill the ends. 
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Re: 3d printed steady rest for unimat 3/4
Hi guys,?
It looks like the business. I would have thought that sacrifical legs approach would be the best option.?
Great work.?
Stay safe,? James, locked down in sunny Fife.? Sent from my Sony Xperia on the hoof
This email contains recycled electrons
On Sun, 26 Apr 2020, 09:20 Peter ashby via , <aescinga.pgen= [email protected]> wrote: I print in ABS and did this with a solid fill, even then it was less than 30m filament, i havent tested it yet, but my thoughts are that the legs can easily be reprinted for a matter of a few pennies worth of filament, so why worry about wear, the ABS should be pretty good for that anyway. testing will be later today. worst case wear wise i could create a leg with a hole at the end and turn up some brass inserts to pop into the ends.
------ Original Message ------
Sent: 26/04/2020 08:38:16
Subject: Re: [Unimat] 3d printed steady rest for unimat 3/4
Hi Peter, nice steady.
Can I ask what material you used. I have mine 3D printed in PLA and I'm waiting for the small bearings to go on the end of the 3 legs before I can use it.
Do the legs wear much?
--
James Batchelor?
Dunfermline, Fife, UK.?
07805 207238
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James Batchelor
Les Orton