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Main Boards => The Bowyer's Bench => Topic started by: longrifle on July 19, 2013, 12:51:00 PM

Title: Grinding lams?
Post by: longrifle on July 19, 2013, 12:51:00 PM
Just wondering what grit paper do you guys use to grind lams with,I have been using 60 grit but,was wondering if I should go coarser?
Title: Re: Grinding lams?
Post by: Sam Harper on July 19, 2013, 01:41:00 PM
I've used anywhere from 40 to 60 grit.
Title: Re: Grinding lams?
Post by: Magnum in Ms on July 19, 2013, 03:44:00 PM
60 grit
Title: Re: Grinding lams?
Post by: Bowjunkie on July 19, 2013, 04:02:00 PM
36 - 40 grit
Title: Re: Grinding lams?
Post by: kennym on July 19, 2013, 07:09:00 PM
Usually 40, but have been to 50 and 36 before.

36 leaves some lines, and with the belt oscillating, makes swervy lines, so 40 now.
Title: Re: Grinding lams?
Post by: jsweka on July 19, 2013, 08:01:00 PM
If Kenny uses 40, then use 40. His lams are the best   :thumbsup:
Title: Re: Grinding lams?
Post by: LC on July 19, 2013, 08:01:00 PM
I've always used 36 because that's what I was taught you needed. But it's true it leaves sanding lines that shows up ALOT on certain woods or stains. Sadly I ordered a bulk supply last time I ordered sand paper!
Title: Re: Grinding lams?
Post by: Crooked Stic on July 19, 2013, 08:41:00 PM
I have used 60 grit from the git-go. I have heard some guys use 80 for veneers.
Title: Re: Grinding lams?
Post by: bigbob2 on July 19, 2013, 11:56:00 PM
I only use 40 grit but did experiment with 24 Grit once. Great if you want to reduce thick lams quick but wouldn't use it for final passes
Title: Re: Grinding lams?
Post by: Troy D. Breeding on July 20, 2013, 07:30:00 AM
50 for me
Title: Re: Grinding lams?
Post by: longrifle on July 21, 2013, 06:36:00 PM
I just wanted to make sure that I wasn't starving the glue joint,I am talking glass bows here and smooth-on.Anyone go back and rough them up with another grit as well.
Title: Re: Grinding lams?
Post by: Bowjunkie on July 21, 2013, 07:10:00 PM
There would be no need. If you grind them with a coarse enough paper, when they're done, they're adequately roughed and ready for glue up.
Title: Re: Grinding lams?
Post by: MoeM on July 21, 2013, 07:25:00 PM
I bought 2 rolls 14m velcrobacked p80 for my hand-fed DIY drumsander and ist`s not coarse enough for fast grinding; next time I`ll order 60 or even 40 grit...
Title: Re: Grinding lams?
Post by: JamesV on July 22, 2013, 02:08:00 PM
I cut all my lams with a thickness planer.
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