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Main Boards => The Bowyer's Bench => Topic started by: oldfartfarmer on October 08, 2019, 07:42:23 AM

Title: 1.5 thin metal for form/jig
Post by: oldfartfarmer on October 08, 2019, 07:42:23 AM
For a rubber band form/jig

1-are you gluing the bottom metal to the jig?
2-are you using a top metal strip also?

do you even use any metal strips?

can one seal the form with epoxy or super glue and sand smooth, and use no strip?
as there's tape on the bottom glass piece that contacts the form,

im confused

I need a vid to watch on how to do this right,

thanks
John
Title: Re: 1.5 thin metal for form/jig
Post by: Mad Max on October 08, 2019, 08:02:16 AM
I seal my form with shellac, several coats and sand with a short block.
I use high heat masking tape on both pieces of fiber glass to keep the epoxy off.
I use a pressure strip on top before the air hose or rubber bands. Big Jim has them
Title: Re: 1.5 thin metal for form/jig
Post by: oldfartfarmer on October 08, 2019, 08:22:15 AM
Quote from: Mad Max on October 08, 2019, 08:02:16 AM
I seal my form with shellac, several coats and sand with a short block.
I use high heat masking tape on both pieces of fiber glass to keep the epoxy off.
I use a pressure strip on top before the air hose or rubber bands. Big Jim has them
,
you got a link to Big Jims pressure strip? Id like to check it out
Title: Re: 1.5 thin metal for form/jig
Post by: Mad Max on October 08, 2019, 08:31:15 AM
https://bigjimsbowcompany.com/product/20-ga-steel-pressure-strip-2/
Title: Re: 1.5 thin metal for form/jig
Post by: Forwardhandle on October 08, 2019, 03:53:38 PM
On this form I used a 1 1/2" clear glass as backing for the top of the form & I use a 1 1/2" .030 metal pressure strip I put the form strip on with contact cement , I use keln dried maple for my forms and have never used a finish on the form !

[attachment=1,msg2887720][attachment=2,msg2887720]

Title: Re: 1.5 thin metal for form/jig
Post by: Chuck N Stuff on October 11, 2019, 08:15:14 PM
 I have started using cork shelf liner glued to form face and then laying a strip of metal over that. I leave my metal loose, and just tape down in non-critical area of the bow. Have been getting really smooth finish using this method, as the cork fills in any imperfections of the form under the metal.
Title: Re: 1.5 thin metal for form/jig
Post by: OkKeith on October 15, 2019, 11:24:59 AM
I have a strip of Formica (cabinet laminate) along the top of mine. Seems to work good. I also wax the heck out of it before I do a glue up.

OkKeith