Thread Size on ER32 collet.

Does anyone know what the thread size is on an ER-32 collet closer nut?

I want to adapt my Unimat the nose to fit the collet closer nut.

Thanks,

Dick

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Re: Unimat DB200 Dutch Motor Diagram #db200

#63496

I'm trying to do the opposite. I just got the same motor. It is packed with decades of dust and grease and I'm trying to take it spart to clean.

I removed 2 long screws and 4 screws that hold the capacitor cover. The aluminum end caps sit in the cylindrical body very tight. Do you just pull them out? Anything else I'm missing?

Re: Turning Wood

#63495

I turn more wood and plastic on mine that any other materials.

Steel and Ali I normally do on my larger machines.

?

Re: Just bought a DB200, need a motor. (Doesnt have to be an EMCO).

#63494

Hi needed to change the motor on my Unimat SL as it kept tripping the power.

I bought a 12v DC motor and a cheap PWM speed controller for it.

I 3D printed a pulley for the motor so I could turn a new pulley. I wanted to be able to put the origianl motor back if needed.

I added a 12V 5amp power supply I had then 3D printed an enclosure for the speed control and on/off switch (12v) and got it running.?

I can't remember the price of the motor or PWM speed controller but they weren't a lot.

As you can see from the photo I'm converting a drill chuck to an M12 for the lathe as I didn't have one.

?

Lez

?

Re: Just bought a DB200, need a motor. (Doesnt have to be an EMCO).

#63493

You'll be way happier with the 24 VDC conversion. They have comfortable power and run cool. The power supply and switching speed control are not expensive. And replacement motors are inexpensive.

Neil

Show quoted text

On Thu., Aug. 22, 2024, 4:29 a.m. Carl via , <carl.blum=[email protected]> wrote:

Hi:

?

Find an older sewing machine with an external motor. It will have a foot speed control too.?

?

Carl.?

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Re: Just bought a DB200, need a motor. (Doesnt have to be an EMCO).

#63492

On Fri, Aug 23, 2024 at 12:05 PM, Carl wrote:

Add a line switch or just unplug it. In trade school we had to shut the mills off at the wall during setups.

?

If swarf is a problem tape over the openings. Most of our cuts are short, but if heat builds up, cool it with an aquarium pump.

?

Or go for an older sewing machine, and get a treadle! No shock hazard.

?

?

I was assuming that any power supply would built into a decent casing, with a mains switch, and maybe a separate on/off switch for the output. A power indicator and an output fuse would be normal. To connect to the lathe I have used three pin XLR audio connectors. I find the cheaper ones have nice solid brass pins suitable for the current involved. On my version I had extra options on the front panel, assuming I would have several uses for the power supply, but they haven't happened yet. The variable speed controller is also in the same box, and I have a switch option for direct 24 V or speed control. I have found it inconvenient to reach over to the back of the bench to adjust the speed and start/stop the motor, hence my recommendation to put the speed controller on a base plate along with the lathe..

?

As for taping over the vents on a sewing machine motor, I was looking for a "proper" solution to the motor problem - something which will still be in use in 20 years time. Most tape falls off after a while.

?

And for treadle drive, I've seen a complete work bench, with an SL at the centre of it, on a sewing machine treadle stand. Only the lighting was not powered off the treadle. Adding some more electrics to charge a small battery while the machine is running could solve that problem. It seemed to work quite well.

?

Re: Turning Wood

#63491

Thanks for the tip, Carl. I seldom work with plastic, but will remember you advise if I do cut plastic. I do have a speed controller and can adjust the speed down to a crawl if needed.

?

Larry

?

Re: Turning Wood

#63490

Factory options to use the unimat for wood were many. Table saw, jig saw, planer, Tool rests, mounts, table router etc.

?Jeff

On Friday, August 23, 2024 at 11:57:18 AM EDT, Charles Kinzer <ckinzer@...> wrote:

There is nothing inherently wrong with using a metal lathe to turn wood.? And, interestingly, the Unimat even has an accessory or two related to cutting wood.

HOWEVER, wood chips and dust contain moisture that metal chips do not.? If not well cleaned after use, this can lead, sometimes quickly, to rust or corrosion of bare metal machine parts.

Metal lathes tend to have more nooks and crannies than wood lathes so are a little harder to get really clean.? That's the only caveat I have.

Also, it's best to not have the machine to oily.? Wipe it off well first.? This helps keep the wood dust from sticking.

The below photos are not of a Unimat, but of one of the Chinese torture machines - er - I mean mini-lathes.? A hub for a 1/10 scale stagecoach model, and one of the rings cut into 90 degree segments to be part of trim for curved corners of a woodworking project.

That sawdust on the top of the cross slide and elsewhere would have probably caused rust in a matter of hours of not cleaned off.? There is already some staining from some prior corrosion on that surface, but not from wood.? Sort of inexplicably.

Same with the sawdust piling up everywhere in this photo.

Charles E. "Chuck" Kinzer

On Friday, August 23, 2024 at 06:09:16 AM PDT, Nate Crouch <ncrouchdesign@...> wrote:

Hi John, ?

??

Nice work, a handle? ? ? I totally get your sentiment with the "wood" thing.? But it brings to mind the question I've long had about the source of the stigma? I have my opinions, but I would love to hear from others. It is harder to quantify that's for sure.?

Show quoted text

On Fri, Aug 23, 2024 at 8:35?AM Lawrence Miller via <larrymiller2728=[email protected]> wrote:

I too have turned wood on my uni. I'm a model railroader and have made model telephone poles, just like the ones in my area, which are are made from pine trees and straight as an arrow.

?

Also I use the table saw attachment to make my own strip wood and scale ties for track. The unimat is truly a "universal" machine.

?

Larry

?

?

Re: Turning Wood

#63489

Why not John! If it works - do it! I've used my U3 for woodturning but I just used a standard metal-turning HSS tool (well-sharpened) which gave a perfectly good finish though I did have to hold a hoover nozzle close to the workpiece as it created a lot of very fine dust!

Re: Turning Wood

#63488

There is nothing inherently wrong with using a metal lathe to turn wood.? And, interestingly, the Unimat even has an accessory or two related to cutting wood.

HOWEVER, wood chips and dust contain moisture that metal chips do not.? If not well cleaned after use, this can lead, sometimes quickly, to rust or corrosion of bare metal machine parts.

Metal lathes tend to have more nooks and crannies than wood lathes so are a little harder to get really clean.? That's the only caveat I have.

Also, it's best to not have the machine to oily.? Wipe it off well first.? This helps keep the wood dust from sticking.

The below photos are not of a Unimat, but of one of the Chinese torture machines - er - I mean mini-lathes.? A hub for a 1/10 scale stagecoach model, and one of the rings cut into 90 degree segments to be part of trim for curved corners of a woodworking project.

That sawdust on the top of the cross slide and elsewhere would have probably caused rust in a matter of hours of not cleaned off.? There is already some staining from some prior corrosion on that surface, but not from wood.? Sort of inexplicably.

Same with the sawdust piling up everywhere in this photo.

Charles E. "Chuck" Kinzer

On Friday, August 23, 2024 at 06:09:16 AM PDT, Nate Crouch <ncrouchdesign@...> wrote:

Hi John, ?

??

Nice work, a handle? ? ? I totally get your sentiment with the "wood" thing.? But it brings to mind the question I've long had about the source of the stigma? I have my opinions, but I would love to hear from others. It is harder to quantify that's for sure.?

Show quoted text

On Fri, Aug 23, 2024 at 8:35?AM Lawrence Miller via <larrymiller2728=[email protected]> wrote:

I too have turned wood on my uni. I'm a model railroader and have made model telephone poles, just like the ones in my area, which are are made from pine trees and straight as an arrow.

?

Also I use the table saw attachment to make my own strip wood and scale ties for track. The unimat is truly a "universal" machine.

?

Larry

?

?

Re: Turning Wood

#63487

开云体育

Hi Nate

I would guess that the stigma has to do with the wood dust getting into the bearings? as you can see from my photo i covered everything as best i could to keep the chips and dust contained. I am making an alligator carved whistle for a five year old’s birthday this weekend and didn’t have a dowel of the correct diameter. His parents are going to be so happy!

Best Regards

John

Show quoted text

On Aug 23, 2024, at 9:09?AM, Nate Crouch <ncrouchdesign@...> wrote:

?

Hi John, ?

??

Nice work, a handle? ? ? I totally get your sentiment with the "wood" thing.? But it brings to mind the question I've long had about the source of the stigma? I have my opinions, but I would love to hear from others. It is harder to quantify that's for sure.?

On Fri, Aug 23, 2024 at 8:35?AM Lawrence Miller via <larrymiller2728=[email protected]> wrote:

I too have turned wood on my uni. I'm a model railroader and have made model telephone poles, just like the ones in my area, which are are made from pine trees and straight as an arrow.

?

Also I use the table saw attachment to make my own strip wood and scale ties for track. The unimat is truly a "universal" machine.

?

Larry

?

?

Re: Turning Wood

#63486

开云体育

Bread sticks? petrified bread? Was that for a party decoration?

Best Regards

John

Show quoted text

On Aug 23, 2024, at 9:44?AM, Mehmood via groups.io <mehmood.naqshbandi@...> wrote:

?Probably only if it was a relic of the True Cross?

;-)

On 23 Aug 2024, at 12:09, Carl via groups.io <carl.blum@...> wrote:

?
Hi John:

?

I cut wood all the time. I've seen bread sticks turned too.?

?

Carl.?

On 08/23/2024 1:27 AM EDT John Entwistle via groups.io <jentwistle3@...> wrote:

?

?

Many of you may find it sacrilegious but tonight I was turning wood on my SL.

?

?

Re: Turning Wood

#63485

开云体育

Probably only if it was a relic of the True Cross?

;-)

Show quoted text

On 23 Aug 2024, at 12:09, Carl via groups.io <carl.blum@...> wrote:

?
Hi John:

?

I cut wood all the time. I've seen bread sticks turned too.?

?

Carl.?

On 08/23/2024 1:27 AM EDT John Entwistle via groups.io <jentwistle3@...> wrote:

?

?

Many of you may find it sacrilegious but tonight I was turning wood on my SL.

?

?

Re: Turning Wood

#63484

Hi John, ?

??

Nice work, a handle? ? ? I totally get your sentiment with the "wood" thing.? But it brings to mind the question I've long had about the source of the stigma? I have my opinions, but I would love to hear from others. It is harder to quantify that's for sure.?

Show quoted text

On Fri, Aug 23, 2024 at 8:35?AM Lawrence Miller via <larrymiller2728=[email protected]> wrote:

I too have turned wood on my uni. I'm a model railroader and have made model telephone poles, just like the ones in my area, which are are made from pine trees and straight as an arrow.

?

Also I use the table saw attachment to make my own strip wood and scale ties for track. The unimat is truly a "universal" machine.

?

Larry

?

?

Re: Turning Wood

#63483

Hi Larry:

?

The table saw can be run slow so it doesn't melt plastic parts.

?

Carl.?

Show quoted text

On 08/23/2024 8:35 AM EDT Lawrence Miller via groups.io <larrymiller2728@...> wrote:

?

?

I too have turned wood on my uni. I'm a model railroader and have made model telephone poles, just like the ones in my area, which are are made from pine trees and straight as an arrow.

?

Also I use the table saw attachment to make my own strip wood and scale ties for track. The unimat is truly a "universal" machine.

?

Larry

?

?

Re: Turning Wood

#63482

I too have turned wood on my uni. I'm a model railroader and have made model telephone poles, just like the ones in my area, which are are made from pine trees and straight as an arrow.

?

Also I use the table saw attachment to make my own strip wood and scale ties for track. The unimat is truly a "universal" machine.

?

Larry

?

Re: Turning Wood

#63481

Hi John:

?

I cut wood all the time. I've seen bread sticks turned too.?

?

Carl.?

Show quoted text

On 08/23/2024 1:27 AM EDT John Entwistle via groups.io <jentwistle3@...> wrote:

?

?

Many of you may find it sacrilegious but tonight I was turning wood on my SL.

?

?

Re: Just bought a DB200, need a motor. (Doesnt have to be an EMCO).

#63480

Hi? Keith:

?

Add a line switch or just unplug it. In trade school we had to shut the mills off at the wall during setups.

?

If swarf is a problem tape over the openings. Most of our cuts are short, but if heat builds up, cool it with an aquarium pump.

?

Or go for an older sewing machine, and get a treadle! No shock hazard.

?

Just get cutting.

?

Carl.?

Show quoted text

On 08/22/2024 9:40 PM EDT Keith S. Angus <keithsangus@...> wrote:

?

?

On Thu, Aug 22, 2024 at 12:29 PM, Carl wrote:

Find an older sewing machine with an external motor. It will have a foot speed control too.?

Two problems: standard sewing machine motors rotate the wrong way - it's not too difficult to reverse them, or you can find an overlocker motor, which usually goes the opposite way, but may cot more. Also sewing machines are usually open frame, so swarf could get in causing electrical problems including a risk of shocks.

?

A pedal for speed control may seem like a good idea but it could give trouble if you happen to tread on it while setting up a job. I've never felt the need of it.