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Re: Spindle ram action

 

On Thu, Mar 13, 2025 at 02:50 PM, Kevin Groenke @ PersonMakeObject wrote:
Best Regards,
Kevin from PersonMakeObject
????
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On Thu, Mar 13, 2025, 1:17?PM phill005 via Groups.Io <phill05=[email protected]> wrote:
Kevin, good idea do you have a depth stop in the chuck?, it certainly quickens the work through nice one.
I have the SL so will give it a try, I have also have the U3 now so no go on that.
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Phill?
--
Kevin from PersonMakeObject
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Kevin, thanks so much for posting. On my endless list of projects is a decent X-acto blade holder. Lovely work and much thanks for your videos!
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Ron
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Re: Spindle ram action

 

I've done similar for my U3, unlike yours mine is set to length as it was made for a specific job.



Paul B.


On Thursday 13 March 2025 at 18:50:23 GMT, Kevin Groenke @ PersonMakeObject via groups.io <kevin.groenke@...> wrote:


Yes Phil, I made a shouldered plug with a screw in it so I can easily chuck stock to the same depth every time. I'm maintaining tolerance of +/-.02mm with this process.?



For the travel stop on the cross-slide I just use rod magnets to limit travel and set the tool accordingly. A 9mm split shaft collar makes a great stop for the long axis.?




Best Regards,
Kevin from PersonMakeObject

????

On Thu, Mar 13, 2025, 1:17?PM phill005 via Groups.Io <phill05=[email protected]> wrote:
Kevin, good idea do you have a depth stop in the chuck?, it certainly quickens the work through nice one.
I have the SL so will give it a try, I have also have the U3 now so no go on that.
?
Phill?

--
Kevin from PersonMakeObject
?????
Re: Spindle ram action

 

Yes Phil, I made a shouldered plug with a screw in it so I can easily chuck stock to the same depth every time. I'm maintaining tolerance of +/-.02mm with this process.?



For the travel stop on the cross-slide I just use rod magnets to limit travel and set the tool accordingly. A 9mm split shaft collar makes a great stop for the long axis.?




Best Regards,
Kevin from PersonMakeObject

????

On Thu, Mar 13, 2025, 1:17?PM phill005 via Groups.Io <phill05=[email protected]> wrote:
Kevin, good idea do you have a depth stop in the chuck?, it certainly quickens the work through nice one.
I have the SL so will give it a try, I have also have the U3 now so no go on that.
?
Phill?

--
Kevin from PersonMakeObject
?????
Re: Spindle ram action

 

Kevin, good idea do you have a depth stop in the chuck?, it certainly quickens the work through nice one.
I have the SL so will give it a try, I have also have the U3 now so no go on that.
?
Phill?
Re: Unimat SL DB200 Lathe up for auction on Shop Goodwill Pickup only Waco, TX

 

There is a? Unimat SL DB200 Lathe up for auction on Shop Goodwill Pickup only in Waco, TX on shopgoodwill.com.
It looks like it includes an autofeed and part of a threading attachment.
The auction ends on 03/17/2025 at 10:24:00 PM? central time.
?
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https://shopgoodwill.com/item/224918065
Re: Spindle ram action

 

Kevin,
In reference to your spindle ram action, what machine are you using? Is it a Unimat?
Dick
http://www.homemadetools.net/forum/?OFF-SET-tailstock-center-65965#post105972
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Spindle ram action

 

I'm working on a batch of hardware for the xacto-ish knives I make and I adjusted the geometry a little to be able to use the spindle ram axis to cut the 2mm x 18mm shoulders. This is working far better than I expected it to and the polished carbide insert tooling is giving me the best surfaces to date. So much faster than turning the little knobs!?
?
https://youtube.com/shorts/OO0_LObYHh8?si=Pf2FNGuVgdBQTJmD
--
Kevin from PersonMakeObject
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Re: Reciprocating wood carver

 

I was also a member of a wood carving club years ago.
--
http://www.homemadetools.net/forum/?OFF-SET-tailstock-center-65965#post105972
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Re: Reciprocating wood carver

 

With a price like that I would think twice about buying one. I have all the hand carving chisels I would ever need. If I need a special I can just make my own and harden and hone the edge. Done that many times as a tool and die guy.
Dick
--
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?SMALL TURRET TOOL POST PLANS?
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Re: Reciprocating wood carver

 

sorry I meant woods I would consider soft.?

best of luck, curious to hear your findings?

Nate

On Wed, Mar 12, 2025 at 6:29?AM Nate Crouch <ncrouchdesign@...> wrote:
I'm a big fan of the Foredom company's products, except that one. I have no gripes about the quality of the hand pieces make, possibly because I could never really use it. I assume that was because the flex shaft ( which kept stripping ) ?just couldn't handle the forces needed to convert a rotary motion to an impacting force on materials?I would consider soft. ? ?

On Tue, Mar 11, 2025 at 10:06?PM OldToolmaker via <old_toolmaker=[email protected]> wrote:
Thank you, Richard!
that is just what I wanted! Dick
--
forum/?OFF-SET-tailstock-center-65965#post105972
?SMALL TURRET TOOL POST PLANS?
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Re: Reciprocating wood carver

 

I'm a big fan of the Foredom company's products, except that one. I have no gripes about the quality of the hand pieces make, possibly because I could never really use it. I assume that was because the flex shaft ( which kept stripping ) ?just couldn't handle the forces needed to convert a rotary motion to an impacting force on materials?I would consider soft. ? ?


On Tue, Mar 11, 2025 at 10:06?PM OldToolmaker via <old_toolmaker=[email protected]> wrote:
Thank you, Richard!
that is just what I wanted! Dick
--
forum/?OFF-SET-tailstock-center-65965#post105972
?SMALL TURRET TOOL POST PLANS?
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Re: Reciprocating wood carver

 

Thank you, Richard!
that is just what I wanted! Dick
--
http://www.homemadetools.net/forum/?OFF-SET-tailstock-center-65965#post105972
?SMALL TURRET TOOL POST PLANS?
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Re: Reciprocating wood carver

 

Micromark has one listed at $76.95 USD.
?
?
Richard
Reciprocating wood carver

 

I want to buy a hand held reciprocating wood carving power tool. I saw one at one time but cannot find it.
Any help on where I might look for such a tool.
Dick
--
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Re: Locomotive building?

 

Thank you for the information James!
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Re: Small Compact Depth DRO

 

Thank you, Keith!
Dick
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Re: Small Compact Depth DRO

 

I think the ordinary cheap digital tyre depth gauge is as accurate as many of the cheaper calipers. There are some with a 50 mm range. I was considering using one on the SL headstock, maybe on the tailstock too, but the one I got was adapted for a different job that meant the tip was filed to a custom size, so we could measure the depth of an awkward groove. At less then ?10 each, why not? With the SL gone I am now thinking about the U3, so no headstock movement there. The tyre gauges might be useable on the little Proxxon mill, cheap enough to try anyway.
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The biggest problem with the cheap digital calipers and scales I have found is short battery life - assuming you can find a decent battery - I've had some where they forgot to put the electrons in. When I put mine away I take the battery out and put it back in the wrong way up. Then it doesn't lose charge and you can find it when you need it. Generally I use Mitutoyos which last a year or two on one cell, but I was given those. I also still use my nice Verniers for many simple measuring jobs. They are particularly better for inside measurements.
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Anyway now I know I can get 50 mm travel tyre gauges I shall get some and see what I can use them for.
Re: Small Compact Depth DRO

 

Here is a link that has been around. Not sure if these are still available.
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For what it's worth, I opted away from this option because I use my Unimat 3 as a mill as well as lathe, and the extension out the back will not clear the mill mounting bar.
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I also question the accuracy of the tire gauges and the limited reading length. If you only use your Unimat as a lathe then 1 inch of measuring range could be sufficient. To capture the full 1.75 inch of cross-slide travel (keeping the full gib length engaged vs overshooting a bit and squeezing in 2 inches of travel), then there is an elevated challenge of fitting a 2 inch indicator.
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So, questions to consider:
1) How do you use your Unimat (lathe only or mill)? To determine needed measuring range.
2) Level of accuracy?
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From here we move down one of several rabbit holes (i.e. challenges with mounting; long extensions of gauges, and off the front if wanting to clear the mill mounting bar; DRO; etc.). I'm right in the middle of this adventure myself.
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If you have not seen this, Paul Budzik's video on adding direct readout to the Unimat is informative. The use of a 1 inch dial indicator with a second cross-slide saddle seems very effective for lathe-only operations (and for milling if you are willing to lose measurement across the full travel distance).
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Hope this helps,
Timothy Jump
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Re: Locomotive building?

 

Thanks Dick! I love an excuse to fire up the Unimat. My wife jokes that every project now requires a part to be turned on the lathe.

On Friday, March 7, 2025 at 08:28:52 AM EST, OldToolmaker via groups.io <old_toolmaker@...> wrote:


Very nice workmanship John!
This definitely shows what can be done on our little Unimats.
Dick
--
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Re: Small Compact Depth DRO

 

Do you mean like these:



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On Friday, March 7, 2025 at 09:14:24 AM EST, OldToolmaker via groups.io <old_toolmaker@...> wrote:


Where can I get a small compact depth DRO to fit the Unimat?
I have seen them on EBay but can¡¯t find them now.
Dick
--
http://www.homemadetools.net/ forum/?OFF- SET-tailstock-center-65965#post105972
?SMALL TURRET TOOL POST PLANS?
?LARGE TURRET TOOL POST PLANS
?MINI- LATHE CARRIAGE LOCK PLANS
?SMALL QC TOOL POST PLANS?
?QUICK CHANGE LATHE TURRET
?MINI LATHE COMPOUND PIVOT MODIFICATION
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