Todays shop time.

[KubotainNH]

I like the 'twisted' one.

Me too.

 

[4570Man]

I think the problem might have been differential expansion. Plywood is extremely stable, because of the perpendicular directions of the grain in the alternate layers. If the fibres in the checkerboard are all orientated the same way, the checkerboard will expand and contract. This leads to the warping.

Had you sandwiched the ply between two layers of checkerboard, the boards probably would have stayed flat. However, the glue might have been likely to fail in the long term.

Ken

That's the best answer I could come up with. It never changed shape once it warped though. I didn't want a thick checker board. I knew a 1/2 inch thick regular wood board wouldn't survive being dropped so the plywood was the solution.

 

[dragoneggs]

That's the best answer I could come up with. It never changed shape once it warped though. I didn't want a thick checker board. I knew a 1/2 inch thick regular wood board wouldn't survive being dropped so the plywood was the solution.

I built a heavy duty 4/4 chess/checkerboard with walnut/maple long ago. Fun project and it turned out great. Wrapped it with Maple border and worried it would expand/contract such that the frame would fail. Nothing fancy other than the frame was detailed with a router to get it a little character. guess I was lucky that the wood was well stabilized prior to glue up because the frame held after years in use. I can't remember what even happened to it after a move. In a box somewhere with the chess pieces (store bought... I'm no whittler :laughing.

 

[dragoneggs]

It's too cold in my shop! Only 'time' I have been putting in is finding boxes of xmas lights/ornaments, etc. Hunting down and fiddling with extension cords, 3/2 prong adaptors. Oh yeah, been sharpening knives and chisels with my new Tormek sharpener. Next in line will be my axes. They need a little TLC and this sharpener is fun to use.

 

[4570Man]

I built cutting boards that "suffered" from the same problem. There's at least 3 of those boards that are 2 years old that are holding up fine.

 

[dragoneggs]

I built cutting boards that "suffered" from the same problem. There's at least 3 of those boards that are 2 years old that are holding up fine. View attachment 532721

What are you using to finish your 'kitchen' boards?

 

[4570Man]

Mineral oil.

 

[4570Man]

I worked on building a metal roller. I scored some rollers and bearings at an auction. The plan is to hopefully straighten the 1/2x4 barstock that I’ve got lots of.

 

[dragoneggs]

I worked on building a metal roller. I scored some rollers and bearings at an auction. The plan is to hopefully straighten the 1/2x4 barstock that I’ve got lots of. View attachment 534983View attachment 534984View attachment 534985

Do post or start a thread on this endeavor!

 

[4570Man]

Do post or start a thread on this endeavor!

I will after it’s farther along. And I bought an already built roller for $35. It’s had better days the scrap monster might eat it.