planeur Posted February 26, 2020 Report Share Posted February 26, 2020 Ever try to resize a baltic birch with your planer or another machine ? Would like te resize a .587" piece to a .500" thickness. I did do somes tests with the planer and had good result (depending of what you wanr to do with it .... ! ) Thanks planeur OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
kmmcrafts Posted February 26, 2020 Report Share Posted February 26, 2020 Are you talking about plywood? No way would I run plywood through my planer.. the glues in ply are tough on blades.. and imagine they'd chew through a set of planer knives pretty quick too.. plus the ply's aren't very thick themselves and who knows what grade of wood is underneath that you'll end up with.. If I need a certain thickness then I use a solid wood.. Not to mention.. could be dangerous if the ply decides to separate.. You might be throwing chunks out of either end of the planer.. damaging the planer or injuring yourself.. tomsteve, Rolf, GrampaJim and 2 others 3 2 Quote Link to comment Share on other sites More sharing options...
planeur Posted February 26, 2020 Author Report Share Posted February 26, 2020 Hello Kevin It is that multiplies wood . And compare to regular plywood, this Baltic birch ( here we call it " merisier russe " ), it has more layers and better quality . I did two tests and were OK. For sure we have to plane some glue.... but I have to plane a small piece as 12 X 12". And I would not plane also regular plywood, which is lest quality and layer, as those one. Have a good day planeur OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
Fedido Posted February 26, 2020 Report Share Posted February 26, 2020 I don't plane at all and haven't done it in over thirty years, but if you did some tests and it turned out okay, I would think Press with it. If your not happy with the results, then stop. I wouldn't think about regular plywood though as stated above. OCtoolguy, tomsteve and planeur 2 1 Quote Link to comment Share on other sites More sharing options...
ScollSaw Slasher Posted February 26, 2020 Report Share Posted February 26, 2020 With Kevin. Scares the heck out of me, no matter how many plys. planeur and OCtoolguy 2 Quote Link to comment Share on other sites More sharing options...
tomsteve Posted February 26, 2020 Report Share Posted February 26, 2020 to me, its not worth trying to remove .087" especially with plywood of any quality. OCtoolguy and planeur 2 Quote Link to comment Share on other sites More sharing options...
Bill WIlson Posted February 26, 2020 Report Share Posted February 26, 2020 The key to success would seem to be the thickness of the surface plys of the plywood. As long as you didn't remove more than the thickness of the surface veneer, then you should be OK, theoretically. I've never tried it. I'm not sure just how thick the surface layers are on a sheet of BB ply. If you took a little off of both top & bottom, it could work. Based on my extensive research on the topic, 15mm ply would be approximately the thickness of the OP's stock (0.591 thick). 15MM BB ply consists of 11 layers. Presuming that all 11 layers are of equal thickness, each layer would be approx. 0.0537" thick, meaning that one could theoretically remove a total of 0.087" from the total thickness, without getting down to the 2nd layer of either face. OK, now my head hurts. Thanks OP. planeur, kmmcrafts and OCtoolguy 1 2 Quote Link to comment Share on other sites More sharing options...
Phantom Scroller Posted February 26, 2020 Report Share Posted February 26, 2020 Wow I would put a test piece through first because those blade will rip it apart bit scary. Roly planeur and OCtoolguy 2 Quote Link to comment Share on other sites More sharing options...
teachnlearn Posted February 26, 2020 Report Share Posted February 26, 2020 What project would require removing .087 of an inch? RJF OCtoolguy and planeur 1 1 Quote Link to comment Share on other sites More sharing options...
OCtoolguy Posted February 26, 2020 Report Share Posted February 26, 2020 I'm not sure of your need to do this but maybe try to locate someone with a Sandflee type device and sand the board down to the thickness you need. I'm not at all comfortable with trying to plane plywood. It would only take one screw-up to have a real mess on your hands. Safety-wise, I'd not recommend it. If you are near a Woodcraft store, they might be able to surface sand it for you for a nominal fee. planeur 1 Quote Link to comment Share on other sites More sharing options...
fredfret Posted February 27, 2020 Report Share Posted February 27, 2020 I think sanding is safer than planeing. Just my opinion. OCtoolguy and planeur 2 Quote Link to comment Share on other sites More sharing options...
kmmcrafts Posted February 27, 2020 Report Share Posted February 27, 2020 Yeah sounds like a better job for a drum sander OCtoolguy and planeur 2 Quote Link to comment Share on other sites More sharing options...
WayneMahler Posted February 27, 2020 Report Share Posted February 27, 2020 I don't understand why you want to do this. I would go with a drum sander for the sake of safely alone. If you are trying to achieve this thickness for like mounting in dado's and grooves then I would simply make the dado's and grooves to match the ply. planeur and OCtoolguy 2 Quote Link to comment Share on other sites More sharing options...
planeur Posted February 27, 2020 Author Report Share Posted February 27, 2020 (edited) Thanks everyone for your reply and your sympathy for my health , but everything is OK ! Before trying that, someone told me that he did it , with very little cutting material removed at each pass on the planer. And yes I have to planed 2 layers of wood to arrive at .500", the size need for my projet. And the reason I did those test with Baltic birch is that I need those 2 pieces for my future projet , a wooden gear clock , which is already in production. I will show you soon ! Baltic birch is the wood recommended for that. And I did not want to buy a 5'X5' piece only to use 12"X12", you would understand seeing the size of my basement's shop! Thanks again and sorry that you get much worry for me. planeur Edited February 27, 2020 by planeur OCtoolguy, WayneMahler and kmmcrafts 1 2 Quote Link to comment Share on other sites More sharing options...
Rolf Posted February 27, 2020 Report Share Posted February 27, 2020 (edited) I would have modified the design to accommodate the additional thickness. Since the 1/2 inch material is probably for the frame. For this type of thickness changes on smaller pieces, I agree with everyone else I would not run plywood through my planer. I am fortunate to have a Supermax 19-38 drum sander with a digital readout. Edited February 28, 2020 by Rolf planeur, WayneMahler, OCtoolguy and 2 others 3 2 Quote Link to comment Share on other sites More sharing options...
Woodmaster1 Posted February 28, 2020 Report Share Posted February 28, 2020 If I had to make the plywood thinner I would use my drum sander. You would get better results and it would be safer. OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
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