Archive for June 19th, 2011

Bedbugs Redux

Mary quite deliberately brought home a pair of bedbugs‚Ķ even knowing what we went through, you cannot imagine how dead those things had to be. She doesn’t just want them dead, she wants them extinct.

Anyhow.

Some pix, atop a scale with 0.5 mm divisions:

Bedbug - 4 mm - dorsal

Bedbug - 4 mm - dorsal

Bedbug - 4 mm - ventral

Bedbug - 4 mm - ventral

Bedbug - 6 mm - dorsal

Bedbug - 6 mm - dorsal

Bedbug - 6 mm - ventral

Bedbug - 6 mm - ventral

Bedbug - 6 mm - mouthparts

Bedbug - 6 mm - mouthparts

They were actually on load from Cornell’s Co-op lab, having recently been distinguished from bat bugs.

About these ads

Leave a comment

Thing-O-Matic: Multiple Bunnies vs Print Speed

What’s more fun than one Stanford Bunny? A few litters!

These at 50 mm/s feed came out a bit jittery. The ear overhangs were particularly messy:

Small bunnies - ragged edges - 50-100

Small bunnies - ragged edges - 50-100

Another litter at 20 mms/s had better ear overhangs and much smoother coats with less overall jitter:

Small bunnies - ragged ears - 20-100

Small bunnies - ragged ears - 20-100

The obvious shear line across their tummies came from my messing around with the HBP cabling, jerking the X stage while preventing the cables from snagging on the Y stage. Moral of the story: don’t mess around with anything inside the box while it’s printing!

They have little droopy tails:

Small bunnies - droopy tails - 20-100

Small bunnies - droopy tails - 20-100

I think 25 or 30 mm/s would be better all around, as it’d move the extruder away from the Z stage’s mechanical resonance at 1.10 rpm.

3 Comments