I've been working on this model between classes. Hoping to get a solid plan in order before moving any further with the physical parts. The price of 2x4s is so low, and since i'm so far along with the wood frame concept, I'll do that to keep moving.
Oops! I just realized i need to go back and correct the Z-axis. It is upside down. I didn't notice because i did not attach the Nema-23 motor to the z-axis assembly. I've got all 3 axis moving in solidworks in relation to the ballscrew. I may upload animation video of this, as I make more progress.
Solidworks says this frame weighs approximately 137 pounds. I imagine this is a decent calculation if but a little low. Unfortunately, solidworks does not have an option for douglas fir by default, so i went with pine. I may make this material correction later. It indicated each axis weighs roughly 40 pounds, which I believe is a fairly decent approximation since I've had to lift these before in the shop.
Things to do:
- Reorient Z-axis in model
- Add holes in various plates in model
- Model motor mounts
- Start modeling 80-20 frame
- Select spindle or router
Spindle Selection Suggestions?
I am concerned with the noise that the spindle will make and would like to keep about the sound of a normal bridgeport mill. I would like to get a spindle that can cut aluminum/steel metal, wood, and plastic, and accept cutters as large as 1/2". Preferably greater than 1HP. I do not have access to 3 Phase. I'd be happy to learn how to use a VFD to convert to 3phase and use something beefy.
I've been eyeing the chinese spindles at Kelinginc I'd likely get a high quality hitachi VFD. Then there is the super-pid chip thing that can make cutting at lower RPM's possible on a router...