Finally finished moving the machine into a garage. Had to make a new desk and clear out a ton of stuff. This build is primarily for milling aluminum. I took the size advice and lowered the z axis about as low as you can build it. I only have about 3cm of z travel. Still need to come up with a good clamping system. Everything is sitting on some osb particle board which I don’t want to use as a wasteboard just yet. I am probably going to put another board on top to move the workpiece closer to the gantry.
There are some really early stage pics taken at night just now…kind of rushed. I am seeking advice from people who have had success with aluminum, particularly the feed rates.
The 2 circle cuts are really basic test gcodes. They’re 20mm diameter circles with .2mm left over until I find a way to use the cut outs they have on estlcam. Currently I am using fusion360 w/ v10 post processor. I need a lot more learning of the cam, but I like the workflow from model to cam on autodesk.
Currently I have tested with carbide 1/8 inch single flute endmills, the same ones Ryan sells on the site. I also ordered a double flute of the same type. My feedrate is 10mm/s and 2mm/s plunge. The DOC was .5mm. A little on the aggressive side compared to what I am seeing.
As you can maybe see from the blurry picture of the test cuts, the edges are pretty burred. Is that normal to expect? The diameter was nominally 20mm but came out as 19.5mm. Little disappointed, I suspect it is from the really crummy surface finish. They were done conventional milling which from what I have read, seems pretty much worse in every way compared to climb milling. Does anybody ever climb mill aluminum? I tried climb milling and it was a complete disaster! The work came unclamped as the bit started burring itself into the workpiece, a common issue with climb milling. I don’t think I want to try it again seeing as it probably almost broke the bit. Then again I am curious to see if I can pull off a climb milling light finish pass.
I appreciate all replies!