I am wondering how big the depth of cut should be in baltic birch ply. I am using a 6mm bit and Ryans feeds and speeds. I have cut with a 1mm depth of cut but I have to cut much and the machining time is long. So what speeds and feeds are you guys using.
My best advice is find a scrap piece and start slow, and move up till your motors skip. Then reduce backwards till it’s no longer skipping and tada you have your feed and speeds. Every machine is different.
Yes, but go deeper, not just faster. 8-10mm/s and as deep as you can go without having problems. It us very machine dependent. But don’t be surprised if you can go 3mm, or even 6mm DOC.
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thanks
I recently cut some Y plates at 10mm/s with 7mm DOC on baltic birch no problem… could have gone deeper or faster never really found ‘the limit’. It was really necessary to do a spring pass (second finishing pass) to get the holes to come out accurately.
I tested the doc on baltic birch ply i found that 2mm max 3mm doc is good but i mesured the square it was about 29mm x 29mm. Can you adjust the offset in fusion cam? Any tips
Not sure what size your square was supposed to be but when you setup your cut in fusion there is a little arrow you can click on the drawing when you select the lines to indicate cutting on the inside or outside of the line that might explain it.
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This is a 1/4" bit, not sure everyone caught that part. 7mm doc for a bit that big may be pushing things but a test will tell you this. If you have the 1/8" bits to work with they may surprise you in these machines. I found the bigger bit really chugged a lot more so have done nearly all my cutting with the little ones.
Let us know how it turns out, the BB ply is something I anticipate cutting in the future.
While it’s not Baltic bitch ply, I just finished hogging out pockets in maple and walnut with 1/4 inch 4 flute endmill. 6 mm DOC, 8 mm/sec and 25% overlap were fine. 10 mm DOC failed.