This happened two times in a row. It starts cutting ok then the bit works itself out of the collar and falls out.
I am using the recommneded 1/8" collar and tightened the bit as hard as I could. Am I cutting too fast? Router speed off? Not sure what to try?
https://www.amazon.com/dp/B0CHYBL347?psc=1&ref=ppx_yo2ov_dt_b_product_details
https://www.amazon.com/dp/B0BBL8WMDQ?psc=1&ref=ppx_yo2ov_dt_b_product_details
Can we get a recommended bit diameter vs feedrate vs router speed vs material (even if just wood) chart for a point of reference within the manual? I believe I was feeding the router too fast and spinning too slow. @bar
Steven Marcus wrote:
Can we get a recommended bit diameter vs feedrate vs router speed vs material
(even if just wood) chart for a point of reference within the manual? I
believe I was feeding the router too fast and spinning too slow. @bar
feeds and speeds being wrong should not result in the bit getting lose (if you
are moving too fast and cutting too slow, the expected result would be to break
the bit, not have it work lose)
David Lang
Understood. And I agree. I would have expected to break the small bit but that didn’t happen.
I still feel that a starting point of feeds and speeds would be very helpful.
Is your collet spring the right size and installed correctly? Typically you should not have to tighten the collect as hard as you can. I use the one-hand method, so only as tight as I can do with two fingers. If you have to try harder than that and it still falls out, you need to change the collet spring, or the bit is smaller than 1/8" in diameter.
As for feeds and speeds, I say start low and work your way up. I do not have an M4 yet, so take my advice with a grain of salt. Different woods change everything you can do. Soft woods you can go fast, hard woods you will need to go slower and probably increase rpms. Sometimes I will do a shallower plunge but a faster feed rate. You will find your preferences with experience. Watch and listen.
I have an M2 with two chains, and weights on the bottom side. I can do 350mm/m at a 0.8mm plunge per pass on most materials that I have used. On shallower passes like 0.2-0.5, I can do around 600-700mm/m. I am reasonably conservative with my cuts though. Plus, the M4 has four belts to keep things flush, so I expect it can probably go double the speed that I can.
The thing to learn is to watch and listen as it is cutting. Sounds from the router bit as it hits the wood. You can hear if it is struggling, and what the chips look like tells a story as well. If you are making fine dust, you are spinning too fast or your speed rate is too low. If the bit is chopping, you need to increase rpm or slow down the feed rate. There are many variables in between, but that is what you will learn from experience of just doing it.
I