How good is a sub ?100 3d printer ?

[curious aardvark]

right, decided to sort the steps and dimensionalty.

Basically printed a bunch of 20x10x3 oblongs and reduced the steps by 0.5 until sizes were pretty much bang on.

so I've ended up with: x=80.5, y=78.5

I can't see any issues with the belts or bearing thingies. Not a clue why they aren't both the same.

Just printed a 20x40x3 - all three are within a couple hundredths of a mm. That's pretty much as good as I reckon I'll get :-)
weird - but accurate :-)

****

Right now that's done. Curious to see just how fast I can print a 20x40x3 lump.
gonna try 150mm/s first :-)
Reckon the limit will be the extruder. Without spring loading, there has to be a limit to how fast it can push filament.

Well the interesting thing is that simplify3d seems to max out at 200. no difference between 200 & 250.
top surface of the cube was a bit rough at 150,
Oh yeah printing at 0.3mm layers too :-)

Yep, basically no matter what silly speed I put in - s3d obviously has some kind of built in limit.

But hey, she'll print as fast as a mk3 prusa that costs 8x more :-)
And the blocks printed at silly speed are the exact same size as the ones printed slower.

All you need to do is slow it down for the solid top layers and you're laughing :-)