Warping Of Thin Plywood In Woodworking Projects, wood working tips and tricks, CNC router tips

Link to the Plywood Company for 5-9 plywood: bit.ly/3nE6HqW
Although CNC provides a living for me, I get MUCH MORE ENJOYMENT teaching you what I know. Please support what I do to help others like you learn about the incredibly fun world of CNC: www.paypal.me/garrettfromme
Thank you!
I discovered thin plywood has its limits.
Thin plywood can be very troublesome with warping. This happens when there are few plys in the panel. Cutting the surface of one side will weaken the ''holding flat' ability of the wood as demonstrated here in the video.
The three primary causes of the warp are:
→ environmental variation during storage
→ moisture variation
→ support of outer plies
If any of these are compromised, the ply will warp.
The best method to prevent plywood warping is to have 5 or more plies in the board. Be selective when purchasing your plywood. Be sure it's flat and has been stored in a controlled environment.
This project was done on a CNC router and was flat when I started.
Facebook: IDCWoodcraft
Website: www.idcwoodcraft.com
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[@TitanFlyer2015]

Watching this 3 years after you made it, and I laughed out loud at the thought of me putting stained wood in my wife’s oven.. I have a bucket list to get through before I die.

[@IDCWoodcraft]

TitanFlyer2015, I'm glad this one made you laugh my friend! Be sure you get permission from the Mrs on this one LOL

[@fredscott413]

maybe an apple press would work,thanks.

[@IDCWoodcraft]

That was funny!

[@JC-nu6mn]

Really neat design! Thanks for walking us through your thought process on troubleshooting the problem. I’ve heard Baltic birch is excellent plywood, very stable, free of voids and relatively cheap. I’m looking forward to your video about witness marks.

[@IDCWoodcraft]

Hi @JC! Yes, birch is the go-to ply. I'm excited to share the video about witness marks since it is such a big deal.

[@podman63]

Cool design nice finish keep looking For the right material 👍

[@IDCWoodcraft]

Thanks brother. I'm working on your Christmas block video

[@DCDLaserCNC]

Good tips! You will also get warping on solid wood when removing material from one side. Any tips on preventing warping after machining solid wood? One idea I had might be to glue some thin plywood to the backside prior to machining. Thoughts?

[@IDCWoodcraft]

That was the first thougth that came to me as I was reading this. Al=ternative is to steam it while holding it in position

[@brandong3486]

What bit did you use to cut the Apple Mack? What font?

[@IDCWoodcraft]

Hi Branden. I used a 30-degree bit. Font for 'Apple' was drawn over the bitmap. The 'MAC's' was new times roman. . What kind of project are you thinking to make?

[@robh063]

Good luck finding 7 or 9 ply plywood that's 1/4" thick. Each ply would have to be so thin it would be see through. I have a bunch of 5 ply Baltic Birch Plywood that is extremely stable that I bought at a Rockler store but it's 1/2" thick. It would work but they would be thick coasters.

[@IDCWoodcraft]

I know there are both out there. I haven't used it yet. It needs to be sourced