Re: Unimat 3 Collet chuck, ER-16?
Certainly later collet holders take ER16s. Look for an eccentric ridge inside the nut - that engages on the collet and pulls it open when you undo it. This stops you having to stuff a bar up the headstock and wallop it with a hammer to get it to release. I have used collets from CTC in China successfully. I have also compared them with RegoFix originals. I can tell they are different (not just in price), but I'm not sure if the differences matter.I have found that buying locally, at higher prices, results in delivery of exactly the same Chinese collets.
Keith
---In UNIMAT@..., <jgpedwards@...> wrote : Hey guys
Got to go looking for some collets for my Unimat 3 Collet Chuck. My understanding is they take ER-16's according to usually reliable :
Lathes.co.uk/Unimat...
Can someone verify that for me?
Thanks, Jeff
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Unimat 3 Collet chuck, ER-16?
Hey guys
Got to go looking for some collets for my Unimat 3 Collet Chuck. My understanding is they take ER-16's according to usually reliable :
Lathes.co.uk/Unimat...
Can someone verify that for me?
Thanks, Jeff
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Re: Unimat SL - fret saw attachment
What is it worth in today鈥檚 dollars?
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Re: Unimat SL - fret saw attachment
Green hammer tone would date it as about mid 1965 or a little later. The last of the MK4 lathes had the same green as the early die cast ZAMAC SLs. They were introduced in the MK2a era and came in Black crinkle, plain dove gray, silver hammer tone,听 blue hammer tone and, as yours in the green hammer tone. Cary
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Re: Unimat SL - fret saw attachment
Cary,
The color is green hammer tone. Made in Austria and has the original packet of blades. The unit is flawless.
Dick
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Re: Mk4 headstock locking
I am really hoping someone can provide a solution as I have the some problem.
Larry
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-----Original Message-----
From: herrcespedes@... [UNIMAT]
Sent: Saturday, March 16, 2019 9:32 AM
To: UNIMAT@...
Subject: [UNIMAT] Mk4 headstock locking
Hi all. I鈥檓 new to this forum, and want to thank you all for keeping it alive.
I have a Uni Mk4.. .. cast iron unit. With the old bolt .. the one with the hole in it.. I find that this machine while a great machine, does not lock the headstock as tightly as the zamak unit.. in part cause CI is quite slippery and the bearing sufface is smaller.. this problem is bad in the lathe mode but REALLY bad in the mill mode.. I wonder if someone had come with a solution to this problem in the shape of some attachment that might lock the headstock more securely that prevents over tightening the locking bolt.. thanks
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Posted by: herrcespedes@...
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Yahoo Groups Links
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Hi all. I鈥檓 new to this forum, and want to thank you all for keeping it alive.
I have a Uni Mk4.. .. cast iron unit. With the old bolt .. the one with the hole in it.. I find that this machine while a great machine, does not lock the headstock as tightly as the zamak unit.. in part cause CI is quite slippery and the bearing sufface is smaller.. this problem is bad in the lathe mode but REALLY bad in the mill mode.. I wonder if someone had come with a solution to this problem in the shape of some attachment that might lock the headstock more securely that prevents over tightening the locking bolt.. thanks
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Re: Unimat SL - fret saw attachment
What color is the paint? Cary
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Re: new topic: extended x-axis ways
Roman and Carl- I can鈥檛 slip anything past you guys. 12 m might just be exceedingly wippy! Accordingly I will order 12 millimeter bar.
叠颈濒濒听 --
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Re: new topic: extended x-axis way bars
If you extend the way bars 3-4" (75-100mm) past the end mounting you have room to mount听 a cnc stepper motor while maintaining the center distance.听 I think someone was planning on making 2 piece pens make a mount for the mandrel that screws on directly to the spindle You may have to part a bit off of a few bushings so that you can buy a little space, Live center not sure if using the 2bearing live center is worth the difference in distance between centers.听 All of this should buy听 you the room to turn even El Grande and Cigar pens
Ed Samsen
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Re: Unimat SL - fret saw attachment
Not to rain on your parade Brian but I have a real, storebought one that came with a bunch of files!听 Bill in Boulder CO USA
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On 3/13/19 10:22 AM, Brian Gates briangates@... [UNIMAT] wrote: Or how about an offset overarm that allows the handle to stay on the file Bill? Despite its apparent simplicity, I suspect any of us could spend the rest of our lives tinkering with a filing machine 鈥� one that dispenses with the slide by using Watt鈥檚 linkage (like a beam engine) would be dangerously hypnotic. Then we could use his sun and planet instead of a crank to halve the speed...
Brian
Gillingham (Kent) UK
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Re: new topic: extended x-axis way bars
Roman:
I
think he meant 12 m Diameter! A very scaled up Unimat.
Carl.
On 3/14/2019 9:52 AM, Roman Gargulak
roman@... [UNIMAT] wrote:
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12 m may be a tad long, I think it will sag in the middle
;-)
Roman
On 13/03/2019 7:42 p.m.,
William Macy wmkmacy3@...
[UNIMAT] wrote:
Thanks guys for the good and simple advice. Now to
get rolling and get some 12 m drill rod.
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Re: new topic: extended x-axis way bars
12 m may be a tad long, I think it will sag in the middle ;-)
Roman
On 13/03/2019 7:42 p.m., William Macy
wmkmacy3@... [UNIMAT] wrote:
Thanks guys for the good and simple advice. Now to get
rolling and get some 12 m drill rod.
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Re: Unimat SL - fret saw attachment
Hi Neil,
I have a "new in box old stock" cast iron fret saw with the round table original wrapping paper etc.. 听It has never been used and I have owned it for years. 听What do you think it would bring in today's market?
Dick
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Re: new topic: extended x-axis way bars
Thanks guys for the good and simple advice. Now to get rolling and get some 12 m drill rod.
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Re: Unimat SL - fret saw attachment
There was a guy on another forum that I am on who did a lot of mods to his Unimat. He used the name Nevada Blue. He used a old drill to jig saw adapter and mounted it on his unimat .听 Here is one on Ebay, they show up on there fairly often. He unscrewed the wooden handle, flipped it upside down, mounted to the unimat so the 3 jaw chunk would spin it. Simple and cheap saw or start for a filer.
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Re: Another thread question
11/16th is close to 0.690", 0.6875" versus 0.690" . I tried to look up a couple of speciality tap manufacturers and they only list a 11/16 - 40 tpi. This one is marked NS as in Nation Special, time to dig out the old machinist handbooks. Nothing like a odd tap mystery.
听I just did a little more web searching and found out SCSSNER is actually SOSSNER, my bad. Sossner is now SOG Tool.听 听 听They make custom and high end taps including .0005" OS taps. So it is starting to look like Tap #1 was a very special custom tap. I get back from working on a bike tonight, I am going to start digging into what else is in there.听
Jeff
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Re: Unimat SL - fret saw attachment
Whoops, cross posting 鈥� it looks as if we are on the same page Jeff
听
Brian
听
Sent from for Windows 10
听
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Re: Unimat SL - fret saw attachment
I抣l see your casting kit Jeff, and raise you a scrap pillar drill, a sewing machine motor and an old Black and Decker jigsaw attachment...
I have a (Chinese) pillar drill with a really sloppy quill that is destined to donate its motor to a Myfordboy power hacksaw as soon as my son抯 welding is up to it, so this might be on the radar instead. Unfortunately he has made it file on the upstroke, but it shouldn抰 be that hard to correct.
Brian Gates
Gillingham (Kent) UK
Sent from Mail<> for Windows 10
From: jeffklender2003@... [UNIMAT]<mailto:UNIMAT@...>
Sent: 13 March 2019 17:12
To: UNIMAT@...<mailto:UNIMAT@...>
Subject: [UNIMAT] RE: Unimat SL - fret saw attachment
How about this kit?
<>
They have nice casting kits that appear to be design for the trade schools.
<>
Jeff
Posted by: jeffklender2003@...
[Non-text portions of this message have been removed]
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Re: Unimat SL - fret saw attachment
Looking at some of these design, it occurred to me. If you are only doing small items. Then why not use the set of small Swiss "pattern" files. The use a small round shaft ~ 1/8". Some set are double ended and some are single. you could use a cheap wood router table and mount a jig/saber saw under it.听 A little homemade adapter and the saw would hold the Swiss style file. And most of these saw also tilt. Cheap, fast and mostly off the shelf parts. Cheap Router/Jig saw table on Ebay. I see them a lot at garage/estate sale cheap and normally have the router with them selling for less then $20.00
Double ended set
Single
Check Ebay. Prices and Quality vary. But cheap to test and then buy good once you know what you need. 听Jeff
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rcjge
OldToolmaker
Carl
Roman Gargulak