Відео

thanks!

For the pages, anything over 80# cover is great, and for the covers I like 120#c or thicker, but thinner will be ok too.

I'm working on documenting the whole process better, this was my first attempt at it! I'll be sharing more as I take better videos. How small a bit can the CNC use? This was using a final cutter with approximately a .003" tip (as close as this beginner could make it.)

@@vallucas the machine I have was really designed for hogging out large amounts of steel and it was built in the 1970’s before computers- it was called a Bridgeport Series 2 NC (just Numeric Control, not Computer Numeric Control, because it used a 1” wide paper tape on reels as the program). It is addressable to .0001” and accurate/repeatable to .001”. This is not super impressive by today’s standards and the (4(!) horsepower) spindle motor only goes to up 3500 RPM, which is normally used on large end mills 1” or more in diameter on steel. For something tiny like this, I think you’d want something in the 20-40,000 RPM range since the cutters are so small. I could get really small bits for it and I think I have an ER collet that goes down to a 1/8” shank (from there you can get tiny bits from MSC or the like). The slow spindle speed means I would have to run the feed rate somewhat slow and I had considered rigging up a pantograph-style motion reducer to further improve accuracy (it has a 30” x-axis travel and a 15” y-axis travel s d I don’t need that much travel to engrave a matrix). For something like this, I might just end up making something from scratch. I’m an EE and a fabricator so it’s actually somewhat trivial with a little time investment, but right now with work and all the crises going on, time is what I don’t have a ton of, youtube and Facebook comments notwithstanding. I converted the mill to run on Mach4 software several years ago and used a PMDX 422 USB breakout board and used the step/direction pulses from that into the existing motor drivers. For the pantograph, I think it’s probably important that it has minimal slip/play/backlash in the joints for best accuracy.

Hi! For this one, I'm using a pretty thick paper, I think it was Arches cover. You could use any thicker drawing paper or cardstock, you just might need to score the fold in the middle.