Latest (greatest?) from the Forrest Gump school of CNC design. Based on Peter F.'s recommendation. A stationary/fixed gantry Type. Work area is X=320 Y=247.65 Z=96mm. Based on 4 350mm SBR16 rails on the X axis, 2 of the same on the Z axis (reversed from my other designs) and 2 500mm standard type guid rails on the Y axis. The wood is 2x2,4 n 6. I think this type design will work great (Thank you Peter F.) as I can add all the braising needed for the gantry without worrying about weight…
That looks solid and easy to build to me. Just be careful with how you have your guides attached. Positioning those perfectly for smooth movement is not always as easy as it seems.
@Paul_Frederick Yea I like it. Not as pretty as the others, but I think it’s the best design. I don’t see anything short of talent and a decent spindle that would prevent this thing cutting metal…
@Mat_Helm
I have an RF-32 bench top mill/drill that to put it gently struggles on some metal. It weighs a half a ton too. I was doing a little milling on it yesterday and I had to lube the ways, and tighten the gib in it because it was walking the end mill a little. The temperature in my shop is a lot lower than the last time I used it. That knocks things out of whack.
Must be nice to have 3 phase power available. Have a bunch of equipment here that’s waiting for me to build a converter. Have a 25hp screw type compressor (and a air dryer) I’d luv to be using…
@Mat_Helm
My mill is only single phase 240V. It is 2 horsepower though. I’ve never had a spindle power problem with it really. I think it goes down to 160 RPM. It has a lot of torque at that speed.
@Mat_Helm
I’ll say this that motor is pretty heavy. I had to take it off the machine once to work on it and I used a bottle jack. Being of Chinese manufacture of course at some point something had to blow up inside it. A wire inside it shorted out. But I’m a handy kinda guy so I managed to fix it up.
While I had it apart I aligned the start switch contacts in it that never did work right when I got the thing. For a long time I had a momentary switch I used to start the machine up. But it’s OK now. Better than new!
FYI, small update on the design. Beefed up the table and adjusted the motor dimensions to fit the new ones listed at the web site (from 122mm in length to 78). The download at the 3D warehouse has also been updated. Added a pic to the end of this album also…
