Wednesday, July 2, 2014

Taulman Bridge nylon test

Very difficult to photograph :-) This is my 40mm test yoda on square base again. He is chosen to have features that provoke warping, various overhangs and some very thin areas in the ears. The cube is 20x20x10 and the paper is in millimeters. Both were printed with pac man mouse ear shapes to control warping at 20% infill, fan off. I can't turn off the fan on first layer. First print (right) was at 245C .2mm layers and 10mm/sec outlines 30mm/s insets 50mm/s infill. Second 245C .1mm layers and 10mm/sec outlines 40mm/s insets 70mm/s infill. I think i like the 618 nylon better since the suface of this stuff is a little less slippery and soft. This should be easier to print but i think the 618 is worth the trouble. I will try Stratum 12-64 nylon next.
First try warped off a bit












 Second try at a bit lower Zbedoffset and higher ambient temp


This was much better. I went .01 closer with the build plate and used a minute amount (1/4 to 1/6th of the area prepped) of glue stick and wiped with isopropyl alcohol in a circular movement just as the bot was doing final heating. This gives a stickiness to the blue tape without residue. Also took ambient temp up to 40C.
I got a fan open error on the first layer but just resumed...
























Tuesday, July 1, 2014

Madesolid PET+ polymer first attempts

 Left is 240C at .15mm layers and fan off at around 10mm/sec and 50mm/sec infill.
The right one was first attempt at 235C dynamic speed from 10mm/sec (this was very slow!) and roofs at 2mm, also .15mm layers. Lovely stuff and i consider the test a success. Unfortunately the shipping costs to europe are prohibitive. So i will probably only get into this if i need to do some wierd medical projects or whatever.

This is really fascinating stuff :
'