Hey guys,
I'm getting ready to design and build my second cnc router.
The first one ended up being to weak and flimsy.
For those of you that are new, here is the first machine...
The 36" bars on the x axis are 3/4", not nearly strong enough. There is way too much deflection... The 24" bars on the y axis are 1/2". Definitely too wimpy. Most of the deflection comes from the Y axis.
So here's the important part. I'm designing a new machine, and I really can't count on the first machine being too accurate. So I want to design a machine that can be built with the least amount of cnc parts, and still have a robust design.
I'll attach a photo of the one that I am starting to design now. Yea, don't mind those slides, I still have to chop them to the right length. Anyways, the silver looking things are 80/20 extruded aluminum. I am using 1x2" extrusions in the design. The red parts are the only parts that I need to cut with my first machine. Probably plywood or MDF. Oh that gold colored thing in the middle? I'll probably buy a z axis from a guy on ebay!!!
The green slides are igus w slides. Based on messages I saw in this forum, it was suggested that I use a single slide on each x axis rather than a double slide on each x axis. But I let my buddy at work look at my design, and he says it needs a double slide on each side. What do you guys think?
Mike...