Pottz commented about 16 hours ago pretty good, id say damn good ross ! i only wish i could do this. of course having a cnc and knowing how to use it might help ! ill just live vicariously through you ! 😂
Thanks, Pottz. The CNC is a great tool, even when it's a struggle to get something cut out.
Surprised you used such a small bit, I'd have been afraid of using anything under 1/4", but your persistence paid off (glad to see you soldered the fold!)
Thanks, Splinter. I like the small bit for a few reasons - parts can be closer, less material removed (64 times less for 1/32 compared to 1/4), less tangential force trying to push the work off the double-sided tape. I did try my single 1/16" bit and it broke too. If I were to do this again, I would probably start with a 1/8" and see how it held up.
Dave Polaschek commented about 13 hours ago Nice! I wouldn't have cut the fold at all, just hammered it over in the vise, but I'm much more of a caveman than you are. Very nice solution, though.
Thanks, Dave. I did consider that, but I had no prior experience working brass, and my research indicated that 360 alloy (which I used) was good for machining, but not great for forming. I was afraid that it my snap if I bent the full 2mm thickness. Bending the 1mm crease went fine, though.
Lazyman commented about 13 hours ago Feeds and speeds are a mystery to me. Not matter what I always worry that I am going too fast to too slow. What feeds and speeds finally worked for your setup?
I found a video that suggested 10k rpm, 5 IPM, and .005 depth of cut. After breaking a couple bits, I changed to 11k, 4 IPM, and .004 depth of cut. That seemed to help, but still broke bits. I should have dropped the feed speed even further. Live and learn.
