Hey there. I have printed all of the parts to get my MPCNC up and running (I have an xyz davinci jr printer). I am getting ready to start my build (have to schedule a day off work. Having 4 young children leaves me no free time). I was hoping to have an x/y build volume (useable) of 20"x30" (size of adams foam board). Was hoping to either one day setup a drag knife system to cut the boards for me (RC Aircraft) or at the very least draw cut lines. I have purchased Ryan’s extruder and was hoping to run the mpcnc as a 3d printer (with hopes to build his new i3 style printer in the very near future, as I ended up with 10 stepper motors in the process of getting things ordered - lets just say ordering parts after you have had a few drinks…).
Anyway, I am curious as to what is a good sturdy build height for the Z-axis. I am thinking in terms of 3D printing here. I do not want to limit myself on my build volume if I can help it (then again I plan on building his 3D printer in the future). I plan on using this guy to print the parts for the 3D printer then swapping out the extruder for a spindle (probably the recommended dewalt). I never plan on cutting much more than some light wood/plastic for making panels for projects and such. I know going to large with your Z-axis can cause issues with milling. I was hoping someone knew the ‘just right’ value.
I was thinking maybe 6"? is this too much if I plan on running the dewalt later?
Another question I had was will I need to support the Y axis at the length I am planning?
I have already printed the 1/4" threaded support (http://www.thingiverse.com/thing:1160962) just in case.
Thanks for any suggestions you have to offer. Having little free time I just want to make sure I am doing it right the first time