How to unstick center disk of round slide rule?
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From: Lil Red Riding In The Hood on 22 Feb 2010 21:00 On Mon, 22 Feb 2010 16:35:15 -0800, Joerg <invalid(a)invalid.invalid> wrote: > Maybe I can get a thin layer of PTFE somewhere. A piece of grocery bag or two. Maybe half a mil each layer.
From: Dave Platt on 22 Feb 2010 20:55 In article <7ugm65F521U1(a)mid.individual.net>, Joerg <news(a)analogconsultants.com> wrote: >> I wonder whether you might be able to polish the worst of those >> abrasions out of the aluminum recess? Perhaps a piece of something >> like crocus cloth, wrapped around your fingertip, rubbed in a circular >> direction? >> > >Possible but some are rather deep and the outer dial would inevitable >suffer. Maybe I can get a thin layer of PTFE somewhere. A good thought - it would be easier to insert (and keep flat) than Teflon tape would be. You might check with Professional Plastics. They seem to stock various varieties of PFTE sheet. I understand that their stores tend to have a "cutoffs and scrap" bin, just as TAP Plastics does. You might be able to cadge a sufficiently large piece of thin PFTE sheet for scrap money, rather than having to buy a full-sized sheet. -- Dave Platt <dplatt(a)radagast.org> AE6EO Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior I do _not_ wish to receive unsolicited commercial email, and I will boycott any company which has the gall to send me such ads!
From: Joerg on 22 Feb 2010 21:08 Lil Red Riding In The Hood wrote: > On Mon, 22 Feb 2010 16:35:15 -0800, Joerg <invalid(a)invalid.invalid> > wrote: > >> Maybe I can get a thin layer of PTFE somewhere. > > > A piece of grocery bag or two. Maybe half a mil each layer. Poly bags? We use those for when our Rottweiler let's one go during our walks :-) But I'll try. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: Joerg on 22 Feb 2010 21:16 Dave Platt wrote: > In article <7ugm65F521U1(a)mid.individual.net>, > Joerg <news(a)analogconsultants.com> wrote: > >>> I wonder whether you might be able to polish the worst of those >>> abrasions out of the aluminum recess? Perhaps a piece of something >>> like crocus cloth, wrapped around your fingertip, rubbed in a circular >>> direction? >>> >> Possible but some are rather deep and the outer dial would inevitable >> suffer. Maybe I can get a thin layer of PTFE somewhere. > > A good thought - it would be easier to insert (and keep flat) than > Teflon tape would be. > > You might check with Professional Plastics. They seem to stock > various varieties of PFTE sheet. > > I understand that their stores tend to have a "cutoffs and scrap" bin, > just as TAP Plastics does. You might be able to cadge a sufficiently > large piece of thin PFTE sheet for scrap money, rather than having to > buy a full-sized sheet. > I'll go through the garage bins on the weekend. Maybe I have some leftovers from winding HV transformer prototypes. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: Lil Red Riding In The Hood on 23 Feb 2010 01:19
On Mon, 22 Feb 2010 18:08:09 -0800, Joerg <invalid(a)invalid.invalid> wrote: >Lil Red Riding In The Hood wrote: >> On Mon, 22 Feb 2010 16:35:15 -0800, Joerg <invalid(a)invalid.invalid> >> wrote: >> >>> Maybe I can get a thin layer of PTFE somewhere. >> >> >> A piece of grocery bag or two. Maybe half a mil each layer. > > >Poly bags? We use those for when our Rottweiler let's one go during our >walks :-) > >But I'll try. Not the "glassine bag" type, but the type that resists tearing. |