Home Built CNC Router and Plasma Table
(8020 Belt Drive)

CNC Router

Sample Work
Router Build pt1
Router Build pt2
Electronics
CNC Links

Plasma CNC

CNC Router Project

Mail Order Form

E. C. Marsh
P.O. Box 342
Saint Ansgar, IA 50472

4x8 Plasma CNC

CNC Router

CNC Plasma Build
Page 2
Page 3


Building the CNC Router Project, part 2

This is the second part of my CNC build. Some day I will get a video camera and take a few movies of the router in action.

I have it set to rapid at 300 ipm. and usually carve and cut at 100 ipm. Cutting much faster than 100 makes me nervous as I can bog down the router or rip the material from the clamps etc. To me a small table, that is plenty fast and it is safe. The motors never stall or skip a step so I don't know what she would if I had a big runway.

I was a little concerned about the jack shaft being in my way but that has not been an issue. I do have to bend over to clamp the material and get on one knee to change bits :-)

MDF deckI wrote a routine to mark the MDF deck at .05" with 1" squares and another routine to drill some 1/4" holes for the material clamps. I think it is going to work good for me and if nothing else I can make checker boards.
heavy plastic around the sidesPut some heavy plastic around the sides and back to try and keep the dust contained. I will need to figure out some sort of vacuum dust collector for the machine.
Router 13 
The Ball ScrewThe Ball Screw wound up being very slow so I schemed up a way to replace it with a belt drive. This came out real good and my motor tuning for X and Y are set exactly the same.
Router 15The bolt through deck clamping system didn't work very good so I put T-Slot on to of the MDF which made a much better clamping arangement.
Router 16A dust collection hood was cut and I used shop vac. hose to a small cyclone attached to a 5 gallon bucket and a Harbor Freight fan.
Router 17All finished!

I couldn't be happier with how fast and accurate it came out.
 I hope you enjoyed the pictures and I will probably add more as time goes on. Maybe even a video or 2.
 Thanks for visiting and e-mail me with any questions. Ernie