1

Topic: Rainbow Dash

Yet another pony...

Rainbow dash was a good test for some decent overhangs, which printed surprisingly well on the solidoodle with the assistance of a fan blowing on the model while it was printing.

Printed in 4 pieces, then glued together with abs cement mixture.

http://www.thingiverse.com/thing:27225

All 3 stls sliced right from the download, no modifications needed.

http://i.imgur.com/2SyxL.jpg

http://i.imgur.com/tC9U7.jpg

http://i.imgur.com/SGQoc.jpg

2

Re: Rainbow Dash

What are these things, are they for some game or you just trying overhangs?

3

Re: Rainbow Dash

Just for fun, plus a good way to see how overhangs turn out.

4

Re: Rainbow Dash

Brad,
If you can show some pictures of you cutting off the support material, I'm sure users may find that useful.

Former Solidoodle employee, no longer associated with the company.

5

Re: Rainbow Dash

It was printed without support material, in 4 chunks then glued together.

6

Re: Rainbow Dash

wow, those came out great! did you use skeinforge or slic3r to create the g-code?

7

Re: Rainbow Dash

I used the default skeinforge profile, in all of its defaultness glory.

8

Re: Rainbow Dash

Brad; those prints look great! Very encouraging that you used Skeingforge and the default settings. Did you clean up those prints with acetone, heat gun, or sandpaper? Where those pieces printed at .3mm or .1mm steps?

9

Re: Rainbow Dash

HelmutK wrote:

Brad; those prints look great! Very encouraging that you used Skeingforge and the default settings. Did you clean up those prints with acetone, heat gun, or sandpaper? Where those pieces printed at .3mm or .1mm steps?

Yeah, I agree. It's super encouraging. I was a little worried after seeing some of Ian's first prints, but if this is just default than I am pumped.

I would also like to know if it were .1 or .3 mm

Also Brad, have you tried printing anything that was 6 x 6? I'm just curious if prints come out alright when its set to its limit. I plan on making a lot of parts like intake manifolds, O2 housings and other car parts that are gonna be bigger than 6 x 6 x 6 and will have to be printed in parts and glued together. Just wondering if I'm gonna be running into trouble here.

10

Re: Rainbow Dash

Thanks guys for the feedback.

I'm going to try printing some large models, and the models were finished with 2 thin coats of acetone bushed on, and some little strings removed with an exacto knife. I probably spend 10 minutes finishing the models, I'm a bit meticulous.

It was done at 0.3mm. Also remember, my solidoodle has had NO calibration done by me, this is what prints I get with the calibration that came direct from the factory.

11

Re: Rainbow Dash

Here is another Rainbow Dash, in .1mm translucent blue PLA.  The legs and bottom of the tail are actually .3mm by accident, so you can see a little comparison.  I had some trouble printing this in ABS, because some of the overhanging perimeters would tend to curl up as they cooled, and begin catching on the nozzle.  That might eventually cause a piece to get knocked off the bed, or if the nozzle hit it hard enough, a missed step and offset layers.  There were also a few bits of mane or wings along the way that begin above the platform where there is nothing to extrude onto, to the plastic would instead get wiped onto the rest of the model.

I printed this at 175C with the bed at 50C and a 120mm fan blowing over the whole build area.  Sliced in Slic3r.  Skeinforge kept trying to use too much plastic, making it look messy.

I keep getting requests for Princess Celestia, which hasn't been converted to a printable model on Thingiverse, so I might need to take up that challenge. 

http://solidoodletips.files.wordpress.com/2012/09/photo.jpg

12

Re: Rainbow Dash

I think the 0.1mm makes quite a difference, you can hardly see any of the layer lines.

13

Re: Rainbow Dash

Ian;
Nice print. Is that the transition from .3mm to .1mm steps I see about 1/3 way up the body?
If so I do see the print quality difference but not as much as I would of thought going from .3mm to .1mm. Of course I am sure the pic does not do it justice and in person the difference is more noticeable.
Would you say a valid rough estimate of print time is that .1mm takes 3 times as long to print as .3mm? Seems logical but just curious if realistic.
Still waiting to receive my 3D printer and find all this quite fascinating.

14

Re: Rainbow Dash

Nice print! Ian, if you don't mind me asking, where did you get the PLA from?

15

Re: Rainbow Dash

Either ultimachine or Protoparadigm.   I've had it since April so I don't remember which.  It didn't come on a spool, which can be a nuisance.

16

Re: Rainbow Dash

Hi Ian,

can you please post your slic3r ini for PLA?
I'm unable to get a nice print; It actually seems that sometimes, while doing the infil, no filament is extruded.

thx

pit

17

Re: Rainbow Dash

PLA should be the same as ABS, but run at 180-185C.  You might also have to figure a new Extrusion Multiplier.  It is generally supposed to be higher than for ABS, so maybe that is why it doesn't seem to be enough for the fill.