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Main Boards => PowWow => Topic started by: clintopher on January 26, 2007, 03:55:00 PM

Title: What grit for grinding lams?
Post by: clintopher on January 26, 2007, 03:55:00 PM

I've got access to a performax wide belt sander and want to grind some lams for a glass bow.  Can anyone tell me what grit sandpaper they're using and how much I can expect to take of per pass?  Also, any tricks of helpful hints would be greatly appreciated.

Clint

Title: Re: What grit for grinding lams?
Post by: Charlie Lamb on January 26, 2007, 05:42:00 PM

Clint...36 grit is what most use.

Title: Re: What grit for grinding lams?
Post by: Keith Deters on January 26, 2007, 06:34:00 PM

I use 36.  

It's not a planer.  You can't take off too much at a time.  Get them close on the saw and plan on making several passes.  I like to flip them after each pass just to even out any error that the tool may have.

Title: Re: What grit for grinding lams?
Post by: clintopher on January 26, 2007, 06:45:00 PM

Thanks guys.

Do they go straight into the bow after being thicknessed with the 36 or is a higher grit paper used to smooth it out a bit?

Title: Re: What grit for grinding lams?
Post by: Crooked Stic on January 26, 2007, 07:13:00 PM

I use 60 grit and keep it fresh. Seems to me that the 32 might cause some problems if you are thin on a taper.

Title: Re: What grit for grinding lams?
Post by: Dave Worden on January 26, 2007, 08:05:00 PM

I've used both.  36 grit to get it near thickness, then 60 on just the face side, so they're a little smoother/prettier.

Title: Re: What grit for grinding lams?
Post by: arraflipper on January 26, 2007, 10:14:00 PM

I like 36 grit to 40 grit,  The ridges and grooves are just that many more places for glue to get a hold of.