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Main Boards => The Bowyer's Bench => Topic started by: monterey on December 11, 2015, 05:35:00 PM
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For those with experience in grinding lams.
I'm working on a final design of a lam grinder for a rigid oscillating sander. So far the idea has been towards feeding with the direction of the sander, but am having second thoughts.
Which "way" should I go?
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delete
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I think with the direction you will have a lam launcher, you need pull them opposite of the direction of the rotation of the sand paper
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Against.... like any other woodworking tool.
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OK, so it seems like the lams should be drawn against the rotation with the operator standing upwind of the direction?
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LOL, my first and only attempt at making a lam grinder was a trip. And after it yanked the first board out of my hand and nearly drove it through the wall with the sound of a 12 gauge shotgun going off, I pulled the plug on it. LOL
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I've got my ridgid set up to grind lams by feeding into the rotation. Just be sure you don't try to take too big of a cut. Also it works better with coarse grit. I use 36 grit shopsmith belts from Lowes. They are aggressive and last a long time
Ridgid lam grinder (http://***********.bowsite.com/TF/lw/thread2.cfm?threadid=253776&category=88#3508092)
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Good advice from Ben, The rigid sander is underpowered and can easily be choked down to the point the motor gives up the ghost.
Tip: if you grind a lot of glass, be sure to blow out the motor afterwards with compressed air. I have burned out the motor on two of these sanders, so I keep a spare on hand.
James