The Shapeoko Forum

I think you're overloading that one driver. Try two of them: it should be much better. Or, if it's easier than installing another driver, editing header files to get Marlin to duplicate the Y axis, and recompiling, you can also wire the two Y motors in series.

If you can move the machine easily by hand, the motors should be able to move it too. Do the Y motors make any noise at all when you try to move them? How are they wired, each Y motor with its own driver, or both to a single driver? Marlin supports duplicating any axis on a spare driver. If both mot...

The belt assembly instructions are up. Sorry for taking so long.

That's not quite how the belt should be, and it won't get it tight enough. On the side without the belt tensioner, the belt should go out through the top slot (as it currently does), in through the bottom slot, out through the middle slot, and back in through the top slot again. On the side with the...

I'll put instructions on the website later today. Basically, you loop the belts through three slots in the tensioner on one end, and through three slots in the bracket (X axis) or end plate (Y axis) at the other end, much the same way you'd loop a backpack strap through an adjustment clip. Then you ...

Even half-decent collets should center consistently. Dremel collets are rubbish. If you're looking for a lower runout tool, perhaps the small Proxxons (Micromot 50 etc) aren't the best choice either. They're still rotary tools, although the collets are clearly better than Dremel and their clones. Th...

pipes carry stuff and are me a used by interior dimension. In the interest of being pedantic (yay!), I disagree. Not all pipes are measured by interior diameter. British domestic plumbing uses 15, 22 and 28 mm water pipes (and increasingly often 10 mm for central heating). These are all outer diame...

I don't know whether the JTAGICE can program non-JTAG chips, but I know you can use a spare Arduino (Uno, Mega, whatever) to program any other Arduino or Arduino-like board with a 6-pin ISP connector. On your 2.2 controller, be sure to use the lower ISP connector, the one for the ATMega328P -- you d...

9 V is great.

Regular carbide endmills should work fine on cardboard. I haven't tried it, but I remember reading about it somewhere.