The June puzzler is yet another mystery. Above is a picture of two prints. The vase on the left and right are sliced and processed the same, however one variable was changed mid-print on the vase on the right. What was tweaked causing the print to go from opaque to translucent? Reply with your answer below and the first correct response will receive a 5lb spool of PLA. Good Luck!
In my experience, changes like that could be produced either by modifying the infill % or the layer.
However, the difference is too dramatic, that I would go with infill = 0%, so the vase was printed as a shell.
Cheers!
I'll go with extrusion thickness. You made it thicker.
Darrel :)
I'll go with extrusion thickness. You made it thicker.
Darrel :)
The relative clarity makes me think they're using Taulman's t-glase and single-wall print (helical). The optical clarity of t-glase can be affected by the layer height and cross-section of the layer. Not exactly sure how the sectional geometry (shape) of the layers change with any single parameter, but maybe this effect is simply from an increase in layer height.
I guess Darrel types faster than I do. Brevity was never my strength!
I guess I should sharpen my answer to say it was the extrusion multiplier that was the single setting that was changed.
D-
The multiplier does seem to make more sense than just layer height.
Although Patrick, you make a good point. In the photo, each clear layer line also looks taller than the corresponding opaque layer lines.
D-
Your eyes are better than mine - I can't be sure of that from the photo. We need to make Samantha post ultra-high resolution photos including measurement reticles with for these contests. But that might take too much fun out of the guesswork.
My guess would be temperature. Increasing the temperature of the extruder will make the plastic more translucent.
bed temp not on or too low bad pic quality my ref is the pic on the left
Patrick and Sergio- apologies for the amateur low res photo:) I actually snapped the shot on my iPhone while visiting a customer in Louisiana who showed the prints to Matthew & I. We've noticed that varying temperature can have an impact on print sheen and opacity, although this is pretty dramatic!
Brad, you're our winner for this month- so nice to see you online!. Let us know if you would like an intro to your neighbor and if you prefer natural, black, white, or yellow PLA:)
We'll be featuring the customer we borrowed the monthly puzzler from on a future #madeinamerica blog at re3d.org/news- can't wait share it with you all!
Samantha, so that was with natural PLA? Wow - I've never seen that much change with temperature on PLA.
Yep, it was natural. I've started an experiment my Gigabot at home to try to replicate the finding and will post what I learn to this thread!
well I didn't know which pic was the question I ran a file with no bed temp it looks like pic on the right falling apart bad fusion part on left looks fine most of my 3d parts come out that way especially with thin walls this was just a wild guess I have a brand new msi 980 ti 6gig gpu intel i7 6700k cpu, asus z170 delux moboard 1600 watt pws and we could not make out anything wrong with the part on the left hmm
Hi Samantha,
Natural PLA will be great. Natural works best for burning out in lost wax casting. I'll have to post some photos of recent work when I get a chance.
That's pretty wild for Natural PLA. I assumed it was t-glase originally.