A test pattern to determine how small and of what quality your printer can build pegs, hollow cylinders, and wheel-and-axle shapes along the Z
The shapes are all 3mm tall and printed on a planar substrate.
Setting "Restart Extra distance" to 0 in skeinforge helps a lot. All heights are a multiple of 0.2mm, so that would work well for a layer thickness.
With these settings, I could get the Replicator print (in ABS):
- a circular peg that is 0.95mm in diameter (0.9 mm in the design). (lower left corner of each swatch)
- an axle (0.9), gap (0.5), wheel (0.5) that is 2.66 mm across printed, (2.9mm in design) (lower left swatch, bottom row, large square)
- cylinders with a wall thickness of 0.56, (0.5 in design).
- a cylinder with a diameter of 1.53mm able to maintain a continuous (albeit tiny) hollow channel down its axis.
The uploaded test is pictured, lower right.
I couldn't print:
- any peg w/ dia < 0.9 (pegs w/ diameter of 0.8 or less refuse to print)
- any hole w/ dia < 0.8 (channel gets smeared in at 0.7 and less)
- any gap w/ dia < 0.5 (gap walls fuse intermittently at 0.4 and less)
I had a lot of trouble skeinforge 47->comb creating invalid segments and barfing red when making this.
Can you do better? Post your settings if so!