Jump to content


Photo

3d extrusion printers


  • Please log in to reply
4 replies to this topic

#1 cteno4

cteno4
  • Moderators
  • LocationWashington DC

Posted 19 June 2017 - 12:45 PM

Hey has anyone been playing much at all with 3d extrusion printers these days with 1/150 scale? Curious if the cheaper 100 micron resolution level is worth even fiddling with at all for 1/150 stuff. Figured it might be fun to fiddle a little with a cheap one to get the hang of what you can do with extrusion printing and relearn some of my 3d cad neurons. It's a big price jump usually to go under the 100 micron resolution.

Jeff
Japan Rail Modelers of Washington DC
http://www.japanrailmodelers.org

#2 Kiha66

Kiha66
  • Members
  • LocationCalifornia

Posted 19 June 2017 - 01:17 PM

I have a Monoprice Select Mini, which for $200 is a pretty great deal for getting into 3d printing.  Not always perfect prints right out of the box, but there is a very good online community with plenty of upgrades and help to fix any problems.  It's been great for making details and structures, but the print quality isn't up to making finished model train bodies sadly.  It is nice for seeing how your design looks before getting it professionally printed though, and the print speed is quite fast.  

Attached File  20161227_203822.jpg   99.03KB   3 downloadsAttached File  20161227_232005.jpg   86.47KB   3 downloadsAttached File  20161227_232013.jpg   78.35KB   3 downloadsAttached File  20161227_234645.jpg   97.3KB   3 downloadsAttached File  20170219_183523.jpg   92.06KB   3 downloads

The banding issues in the photos are due to a loose Y axis rod that I need to re-tighten.  The cat and tank are about an inch 5 cm high, printed in thicker layer heights to speed up the printing.  


7892_0.gif7798_4.gif7799_4.gif7797_4.gif7797_4.gif7772_7.gif
Graphics by moko

#3 kvp

kvp
  • Members
  • LocationBudapest, Hungary

Posted 19 June 2017 - 01:59 PM

Hey has anyone been playing much at all with 3d extrusion printers these days with 1/150 scale? Curious if the cheaper 100 micron resolution level is worth even fiddling with at all for 1/150 stuff. Figured it might be fun to fiddle a little with a cheap one to get the hang of what you can do with extrusion printing and relearn some of my 3d cad neurons. It's a big price jump usually to go under the 100 micron resolution.

I tried a test print on a collegue's printer, but turns out the biggest problem is not the movement resolution or the layer thickness, both got improved over time, but the material thickness. Most print heads have a fixed filament output width and you can position this with a higher resolution than the diameter of the material. The results were sadly not up to any acceptable standards.

 

I think i'll just wait until light activated resin volumetric printing becomes available, since in that case, the resolution is the display pixel and not the nozzle on some huge mechanical hotglue gun, like in case of these filament printers.



#4 cteno4

cteno4
  • Moderators
  • LocationWashington DC

Posted 19 June 2017 - 03:37 PM

Kiha,

Ha! that's the one I was looking at! Figured for $200 it was in the range of play with it and see if I could find a use for trains! Yeah was not expecting to print cars, was wondering more for scenery buts or building details.

I agree for most 1/150 liquid polymer will be the way to go when it gets more affordable and supplies stabler, but that may be a ways off.

Thinking for now more to just get cad skills back and fiddle. But little time to play but it keeps catching my eye all the time in their ads.

Btw monoprice has always been a super source for cabels and wire. About the best price around and quality is really good. Excellent cs and a few times when I screwed up and realized I needed a special cable on a job I could call by 4 and someone would get in next day fedex for me. I got turned onto them like 15 years back when a friend who does very high end theater installs was using them. Lots of engineers out there love them have tested the cables and found them great. Private resident video/audiofile installs use to try to get my friend to use redicously expensive trendy cables and he use to wire it up a test with monoprice and tell them it had the high end cables and then have them experience it and of course they thought it was sooo good, then he would let them know it was mono price and they could save a couple of thousand dollars... they usually ate their hats, but some just had to have the name brand to brag.

I've used them on many exhibit installs and never a failure or issue! Save a lot of budget over the years which was good as all non profits with little budget to start with!

Jeff
Japan Rail Modelers of Washington DC
http://www.japanrailmodelers.org

#5 Kiha66

Kiha66
  • Members
  • LocationCalifornia

Posted 19 June 2017 - 04:09 PM

I'd definitely recommend it, its pretty fun even if the details aren't amazing.  We also printed a whole bunch of clip-on temporary track bumpers for the local train club to isolate tracks being worked on and also create operational puzzles on running nights.  

Attached File  20170215_123813.jpg   123.53KB   2 downloadsAttached File  20170219_235815.jpg   133.32KB   2 downloads


7892_0.gif7798_4.gif7799_4.gif7797_4.gif7797_4.gif7772_7.gif
Graphics by moko




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users