Re: Rich's penholder

Peter,

This really shouldn't be a problem. The spindle itself will run true.

There is/was an article about a spindle lock for the Sherline
headstock/spindle in either HSM (Home Shop Machinist) or PIM
(Projects In Metal) which is now called Machinists Workshop, all by
village press.

It seemed kinda unwieldy to me, but looks like it will work well.

I'd just use a pine wedge GENTLY pushed between the spindle pulley
and headstock body. You can buy "shims" at Home Depot...

Hope this helps.

Ballendo

P.S. Does this design give you some insight into the "floating"
dremel mount you asked me about privately? Same principle, different
dimensions...

--- In CAD_CAM_EDM_DRO@y..., Peter Chen <cadcamcenter@y...> wrote:
> Good morning,
>
> For better accuracy, one would need to prevent the
> spindle from rotating. I don't have a Sherline with me
> but I believe that there is a mechanism to lock the
> spindle. Hoping someone on the list with a Sherline
> mill can elaborate.
>
> Thanks.
>
> Peter
> ______________________________________________
>
> Hi Rich,
>
> Trying to figure how is your holder assembled and
> wondering if the diagram
>
> below represent correctly
>
>
> | | | |
> | BORE____ | | |
> | \ | | |
> | \ | |: SHERLINE |
> | :|P|: SPINDLE |
> | :|E|: |
> |___________z :|N|:_z______________|
> ____z | | z___ Z = Screw thread
> | z | | z |
> | z |P| z |
> | :__|E|__: |
> | :|:|N|:|: |
> | :|:| |:|====|=|| set screw
> | :|:| |:|: |
> | :|:| |:|: | End Mill Holder
> | :|:| |:|: |
> \___:|:| |:|:___/
> s|:|P|:|s
> s|:|E|:|s s = Wire spring
> Rich's | :|N|: |
> Pen | :| |==|=|| Knurled screw
> Holder |_:| |:_|
> | | \___Bore
> | |
> \-/
> ! Rollerball
>
> Thanks for any correction and further clarifications.
>
> Peter
>
>
>
> ____________________________________________________________
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