Re: Unimat 3 Collet chuck, ER-16?
Will an ER16 Collet chuck nut fit on a Unimat 3's ES16 thread?
-Jeff
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Re: Unimat 3 Collet chuck, ER-16?
The collet chuck in the blog post that I linked to earlier is for my SL. I posted the link to show the difference between the two collet types.? is my U3 collet chuck. Individual Chinese ER16 collets are as cheap as chips on eBay (as little as 1.41GBP), so its worth buying one on its own just to see if it will fit.? ---In UNIMAT@..., <jgpedwards@...> wrote : Paul,
That was for the Unimat 3/4 model with the 14Mx1 Spindle thread?
-Jeff
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Re: new topic: extended x-axis way bars
Yes Virginia, ¡°metric countersinks¡± do exist! ?Aside from their diameters being expressed millimeters, the specification calls for the included angle to be 90 degrees, not the US screw countersink standard 82 degrees. With little trouble I located a 90 degree countersink (3 flute, 3/8 in. body) for $11.10 at McMaster-Carr which arrived today along with the 12 mm round bars that ordered 2 days ago. It looks like I¡¯m now ready to start making the extended way bars ( with mounting screw heads countersunk on top) that I need.
Thanks all for the useful advice along the way.
Bill
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Re: Unimat 3 Collet chuck, ER-16?
Jeff ?Unscrew the collet chuck nut and look inside it. If you see a loose metal ring in it by the end, then you have a ER set up. The E series do not have the ring in the nut. ?Jeff
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Re: Unimat 3 Collet chuck, ER-16?
Hey Jeff,
Don't have any ER collets, just the two Collet chucks, one of which is an ESX25 for the Mill. The one on the Uni 3 lathe is 14Mx1 female spindle thread, but no way to tell if it's an ER type.
-Jeff
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Hi Jeff
Sent Doug an email at Homestead. Waiting to hear.
Jeff
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Re: Unimat 3 Collet chuck, ER-16?
Hi Paul,
I have an ESX25 Collet Chuck as well. It came with my Uni 3 Mill (dedicated cast iron compound table base.) Still trying to figure out if my U3 Lathe Collet Chuck is am ER-16 or not. Guess I may have to buy an ER collet and test it....
-Jeff
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Re: Unimat 3 Collet chuck, ER-16?
Paul,
That was for the Unimat 3/4 model with the 14Mx1 Spindle thread?
-Jeff
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Jeff,
Have you tried to make your own?
VERY easy to do, cheap ($1.00/ft) and you can make any size you want
to suit your needs.
I bought 4 feet of 4mm round textured polyurethane belting about 10
years ago from McMaster Carr and still have more than half left. All
you need is a knife and soldering iron.
McMaster Carr part number is 8112K32.
Roman
?
Hey guys,
need to get a belt set for my Uni 3
but more importantly my DB200 so I can run my
scroll and circular saw.
Does anyone know the sizes?
They appear to be 5mm in diameter. I just need to
two "standard ones for the DB200 currently.
Also sources other than the Greek fella on ebay?
Cheers,
Jeff
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Re: Unimat 3 Collet chuck, ER-16?
Paul RC Machines is where I purchased my ER16 and ER20 collet holders. I did not see where they had a ER25 for the M12x1 spindle. They have a good product for a fair price, but the shipping was high to get them to the USA. ?Jeff
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Re: Unimat 3 Collet chuck, ER-16?
I forgot to add?You can use a ER collet (grooved) in a E holder. But you can not use a E collet (non grooved ) in a ER holder. The ER holder has the snap ring inside it and it the snaps into the grooves in the ER collet. The E collet does not have the groove and will ruin the snap ring when you tighten the nut down. ?Jeff
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Re: Unimat 3 Collet chuck, ER-16?
There's a photo of an E and ER collet side by side on my ?(my apologies if you've already seen it). As you're looking at a collet chuck for a Unimat 3 you might want to consider an ER25, which has a larger range of collet sizes as you'd expect. Most sets range from 3 to 16mm, but you can get 2mm collets and up to 20mm. Personally I have both ER16 and ER25 for my U3, and will quite often fit the 25 to the headstock and use the 16 in the tailstock, especially when drilling small holes (under 1mm).
Paul B.? ---In UNIMAT@..., <jeffklender2003@...> wrote : I forgot to add ?You can use a ER collet (grooved) in a R holder. But you can not use a R collet (non grooved ) in a ER holder. The ER holder has the snap ring inside it and it the snaps into the grooves in the ER collet. The E collet does not have the groove and will ruin the snap ring when you tighten the nut down. ?Jeff
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Jeff ?Here is what I have on the SL I have purchased from both here:
and here
Both are good to deal with and offer a great product.
?I also use white Buna O rings I got from Ebay. Cheap, grip good and if I get in trouble by trying to bit off too much they will slip a bit.
I copied this down from someplace long ago.
Belts ¡°O¡± rings
The Motor belt is a MSC 09263344 a size 334 Buna N
O-Ring - 25 pack is $6.77
The large drive belt is MSC 09263393 a size
339 Buna N o-ring - 25 pack is $7.50
The power feed belt is MSC 09262239 a size 232
Buna N o-ring - 50 pack is $5.71
?Jeff
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Re: Unimat 3 Collet chuck, ER-16?
?Jeff? ?The ER collets are easy to spot from the E. The ER have a groove in them at the widest part that goes all the way around them . On the inside of the nut is a "snap" ring that this groove snaps into. E collets do not have this groove and the E nut do not have the snap ring inside them. The ER collets also have double the amount of slots cut into them and this allows them more of a range. I have only seen once a long time ago a couple of E collets with the "extra" slots in them for increase gripping range, they must have been very late model ones and they did not have the groove in them. ?Look at Unimat collets and ER16 or ER 29 collets on Ebay and you will see the difference in the "groove" ?Jeff
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Hey guys,
need to get a belt set for my Uni 3 but more importantly my DB200 so I can run my scroll and circular saw. Does anyone know the sizes? They appear to be 5mm in diameter. I just need to two "standard ones for the DB200 currently. Also sources other than the Greek fella on ebay?
Cheers, Jeff
|
Re: Unimat 3 Collet chuck, ER-16?
Hey,
In looking at the nut, it's hard to tell if the ring is eccentric.... ?
-Jeff
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Re: Unimat 3 Collet chuck, ER-16?
?I have both the ER16 and the ER20 for the unimat. I also purchased the cheap Chinese collet sets on Ebay. The ER20 set was missing the 5mm one, but had two of the 3mm. I contacted the USA seller and they responded fast. They do not stock spares and would not break open a set for one. They did offer to pay for one if I bought it else where or I would have to wait 45 days for a replacement collet from China. Ebay did not have any single 5mm collets except for the better ones. ?I ordered a Techniks brand one for almost what I paid for the cheap set. The USA seller rebated 1/2 of what I paid to help cover the cost. Side by side the Techniks collet has a better finish on it, the cheap ones look a little rough. But they have worked so far for what I needed. ?Jeff
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Re: Unimat 3 Collet chuck, ER-16?
That's just the difference I noticed - RegoFix collets are more flexible and have a finer finish - but I get the same concentricity from both, so I'm not sure it matters. I assume the flexibility means the RegoFix collets will last longer in heavy use, but how many of us use them all day every day? I don't think it matters to us.
Keith
---In UNIMAT@..., <carl.blum@...> wrote :
Hi
Gang:
I have
ER-32 collets, and the difference I see in Rego vs. China, is
the Rego flex with much less force. They are a little more
shiny too.
I
built a M12x1 ER-32 collet chuck for my Unimat.
Carl.
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Re: Unimat 3 Collet chuck, ER-16?
Hi
Gang:
I have
ER-32 collets, and the difference I see in Rego vs. China, is
the Rego flex with much less force. They are a little more
shiny too.
I
built a M12x1 ER-32 collet chuck for my Unimat.
Carl.
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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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rcjge
Roman Gargulak
Carl