Thanks Cary, Both of mine are noisy, one has had very little use, but the busy one is really noisy, but not quite to ear plug level yet. I have swapped them out and the "noisy" one is now on the bench ready to be dismantled. The fan end has two screws, the brush end has four. I will start on it today and take lots of pictures as I go. It cannot be any more difficult than many similar sized motors. Wish me luck. When all is done, I may publish the pictures in a PDF doc for the files. It may help others, I suspect that most of us are not afraid to tackle such repairs/overhauls. Peter B.
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Thanks Neil for the suggestions, but I don't need to have someone do it for me; I've been doing electrical overhauls/repairs since the 50s. I was hoping someone had an exploded view or parts list they would care to share. I seem to recall seeing similar posted in the group previously but cannot find anything. Maybe I am hallucinating. Do you know of a source of brushes if I need any?
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Thanks for the tip about Rosemary Paint.? I had not thought to check the auto stores.
Tamra
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If you are in Canada, I just found 4 cans of Rosemary at my local (Dartmouth, NS) Canadian Tire store. That store now has 3 left. It may be worth checking your local Canadian Tire!
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If you want someone to do it for you, try a place that repairs
sewing machines.
If you want to do it yourself, check your local library for books
on electric motor repair.
And of course YouTube etc.
Neil
?
Both of my Unimats have U100 motors on them. One is
getting noisy. If I remove the belt and rotate the shaft
by hand it emits a ticking noise. Can anyone point me to
some instructions to enable me to dismantle and overhaul
the motor. I did a search in the files and conversations
but could not find anything. I suspect it may be brushes.
Any hints and tips or diagrams/photos would be helpful
too. I am not a novice to working on electrical tools and
devices.
Thanks in advance,
Peter B.
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The only thing EMCO or Edelstaal printed, that I am aware of was an exploded view of the U90 and the single speed U7750. I have a U100 but have not used it. How you get to the brushes I don't know. Do you put a drop or two in to the bushings now and then? The U100 motor has the advantage of 100% duty cycle because it has a fan. Down side is they are noisey. Inspect the cases to find the way inside. If I recall there is now exterior brush access. I don't think brushes for the U100 were ever offered. Cary
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Both of my Unimats have U100 motors on them. One is getting noisy. If I remove the belt and rotate the shaft by hand it emits a ticking noise. Can anyone point me to some instructions to enable me to dismantle and overhaul the motor. I did a search in the files and conversations but could not find anything. I suspect it may be brushes. Any hints and tips or diagrams/photos would be helpful too. I am not a novice to working on electrical tools and devices. Thanks in advance, Peter B.
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??? ??? Thanks Jeff. Well reasoned and well explained!? Bill in
Boulder CO USA
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Bill
?At the time I purchased the ER16 and the ER20. I can used
one on the headstock and one on the tails stock if needed.
?Jeff
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?I just spotted this in the RC machine M14x1 stuff. 38mm boring head,
Jeff
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Bill the M12 x1 collet holders are 59 euro including 17% VAT. ?Jeff
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Bill ?At the time I purchased the ER16 and the ER20. I can used one on the headstock and one on the tails stock if needed.
?Jeff
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The RC price also is including the 17% Value added tax. You do not pay that.? So 79 euro would be minus 17% plus shipping. I emailed them two year ago when I ordered my two holders and the responded right back.? The shipping cost a bit. I think it was because they had to send it to France 1st and then to the USA. It think that they made the holders themselves. Excellent quality.
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So far I see RC has the M14 collet chuck at 79 euro.? They are Luxembourg.? Then I see GG(Germany) also recommended, charges 49 euro, but their Ebay listing says does not post to US.? Is one collet chuck 30 euros better, even if I apparently cannot buy one?? Can I have some confidence that these are made in their countries of origin, or are they just Chinese at marked up prices?? Also, it seems nothing is in the US.
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??? ???? As my Uni is an early one with the M12x1 spindle this is
academic to me.? Bill in Boulder CO USA
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Based on the discussion that I have seen, I can conclude that the
only sources for a M14x1 collet chuck are someone like "GG" in
Germany, and no one here knows of any US source.
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RC Machine has M14 x 1.0 Collet holders? stuff. Buy the holder from them ad then get the collets off Ebay.
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Based on the discussion that I have seen, I can conclude that the only sources for a M14x1 collet chuck are someone like "GG" in Germany, and no one here knows of any US source.
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?Keith ?I recently had to make a threaded adapter for a 1967 Honda Carburetor cable. Threaded 8mm OD x threaded 6mm ID in aluminum. The ER16 chuck with a 8mm collet worked great. I used a section of rod about 1 1/4" long, trued it up, used a die to cut the OD threads, center drill, drilled to proper size and then used a tap to tap the ID threads, cut off to length and it fit perfectly.? ?Jeff
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One thing to bear in mind is that the capacity through the headstock is a little over 6 mm, and ER16 goes up to 10 mm, so why go for anything bigger? The holders already suggested should be OK. You will lose accuracy if you have to machine the holder yourself - get one that fits as supplied. If you are looking at shipping from Europe also look at GGtools. They offer ER16 holders specifically for the DB/SL, but they don't always have them in stock. I assume they make them in small batches. At the moment they have them for the U3, but I don't see any for the DB/SL:
Keith
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I got a clone ER-16 collet chuck and nut, and a clone Imperial collet set in various sizes from 1/8” to 3/8” for my SL.? I don’t remember the sources, other than the fact that I found them on Ebay, but not at the same place.
?
Other than having to remove the first few mm of 12x1 threads in the chuck to clear the shoulder on the spindle, the chuck has worked fine for what I’m doing with it as a hobbyist.? I know that you get the accuracy you pay for, but I also
know that I only pay for the accuracy I really need.
?
Don
?
?
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From: UNIMAT@... <UNIMAT@...>
Sent: Thursday, March 28, 2019 9:02 PM
To: UNIMAT@...
Subject: [UNIMAT] ER Collets
?
?
??? ??? Looking for recommendations for ER collet size for my SL-1000
Unimat. Sizes and sources needed. And BTW I also have an Atlas 618, a
7X1Minilathw and a 12 X 36 Atlas so I don't need a Rex Tingey size
capacity! Thanks, Bill
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Hi
Gang:
I have
ER32 chucks for: R-8, 5C, MT4, M10x1 plus Square and Hex
blocks for vice use.
Very
versatile collets!
Carl.
?
?Bill
?I purchased the ER16 M12 x 1.0 and the ER20 M12 x 1.0
collet chucks from here.
?
?Not cheap with the shipping to the USA, but great
quality.?
?I then picked up the Cheap Chinese sets of Inch and
Metric in both ER16 and ER20. The plan is to replace the
cheap ones with better ones once I find out the sizes that
I use the most. The ER16 set came with two 3mm and no 5mm
collet. Because the Ebay seller was a drop shipper, I
would have had to wait 2 months to get a replacement. I
instead picked up a Techniks brand 5mm collet on Ebay.
Better finish with the Techniks one, but the cost for one
was equal to 1/2 the price of a full set of cheap ones.?
?I bought the two collect chucks so I can use them in
the head and tail stocks at the same time. So far I have
had to use them to make a few motorcycle cable fitting
parts and no complaints.?
?I also have a Unimat E16 collet with the sizes in
1/32" plus a couple of them in the 1/64" range. The
problem with the E16 is the very limited grip range, it is
basically good only for the size on in.?
Techniks collet on Ebay
EBAy ER20 Collet set
Very handy Brass, Aluminum and SS rod assortment in 2m
to 8m
Jeff
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Carl