3DP Single Unit Pump Restrictor [Deleted]

Discussion in '3d Printer Part File Discussion' started by Xanthar, Apr 3, 2017.

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  1. Xanthar

    Xanthar Well-Known Member

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    Xanthar submitted a new resource:

    3DP Single Unit Pump Restrictor - 3DP Single Unit Pump Restrictor

    Read more about this resource...
     
  2. Beaver

    Beaver 2020 Rookie of the Year Admiral (Supporter)

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    I think you need to make the OD a little bit bigger to give the ends of the nozzle more substance. Slic3r is dropping the first few and last few layers because they're too thin.
     
  3. Xanthar

    Xanthar Well-Known Member

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    Interesting... I made it 1/4" OD to match up with the Battler's Connection offerings. I sized the passages though it such that there would be at least two 0.4mm (My nozzle size) perimeters even at the ends.
    Using 0.1mm steps, Slic3r 1.2.9's preview shows me it's all there and the gcode it exported shows up with the full dimensions in OctoPrint's gcode viewer. Are you slicing for a different nozzle size or using a different version?

    The GCODE looks good. The last layer is at 25.4 +- and it's a loop with a fairly high extrusion rate.
    I think it ends up being 0.68 mm wide. Here's the part I'm talking about :

    G92 E0
    G1 Z25.386 F3600.000
    ;Layer Change
    G1 X71.985 Y75.183 F3600.000
    G1 E1.00000 F1800.00000
    G1 X72.001 Y74.607 E1.01156 F1260.000
    G1 X72.144 Y74.015 E1.02378
    G1 X72.377 Y73.502 E1.03509
     
    Last edited: Apr 3, 2017
  4. Beaver

    Beaver 2020 Rookie of the Year Admiral (Supporter)

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    I have the latest version of Slic3r. I have a 0.4mm nozzle and sliced at 0.1mm layers. Here's a photo of the slicers result
     

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  5. Xanthar

    Xanthar Well-Known Member

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    I'm not sure what's happening there. Your menu bar looks very different from mine. Is that a Repetier Host window? If so, does it behave differently, if you open it in Slic3r directly?
     
    Last edited: Apr 3, 2017
  6. Beaver

    Beaver 2020 Rookie of the Year Admiral (Supporter)

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    Yes, using Repiteir.
    So I used Slic3r to slice it then exported the G-code. This is what I got. I'm not sure why it's uneven and has spikes coming out of it though.
    Nozzle Slic3r.jpg
     
  7. Xanthar

    Xanthar Well-Known Member

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    LOL. Yeah that's wacked. If you look at the Gcode in OctoPrint does it look OK?

    PS. Could you send me the gcode to compare to?
     
  8. Beaver

    Beaver 2020 Rookie of the Year Admiral (Supporter)

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    Here's the g-code. How's it look to you?
     

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  9. Xanthar

    Xanthar Well-Known Member

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    It seems fine. Slic3r introduced some weird variations in the OD in both our files but, there are no layers missing.
    How did it print? It did not come out well on my printer. The choke point is way undersized. A 3/32" pin isn't even close to passing through it and it was supposed to be 1/8" in diameter. I'm thinking Slic3r is not the right tool for small, precise cylinders : (

    PS. No spikes. That seems to be a problem with the viewer. Are you using Slic3r on Windows? It looks fine in the same version on Linux Mint 17.3. It also looks OK in the gcode viewer on gcode.ws. It's odd that we get very different images but, nearly identical gcode files.
     
    Last edited: Apr 3, 2017
  10. thegeek

    thegeek Well-Known Member

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    Gee I just put a chunk of brass in my lathe and cut it out. No spikes no thin sections and by gosh it is made of metal.
     
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  11. Beaver

    Beaver 2020 Rookie of the Year Admiral (Supporter)

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    When I tried to print it yesterday, it started printing ok even with the missing layers, but it popped off the bed before it finished. I'll give it another shot later today.
    Also, I wouldnt count on your hole dia. coming out perfect. I've always had to drill out the couple that I've made so far.
     
  12. Xanthar

    Xanthar Well-Known Member

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    Always taking the easy way out : P
     
  13. Beaver

    Beaver 2020 Rookie of the Year Admiral (Supporter)

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    Count me in with Carl then. If I had a lathe I wouldn't mess with the 3d printer for these parts either. ;)
     
  14. SteveT44

    SteveT44 Well-Known Member

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    Designing and prepping files for 3D printing is a hobby in itself.
     
  15. NickMyers

    NickMyers Admin RCWC Staff

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    Care to share? Outlets for the poor and the latheless?
     
  16. thegeek

    thegeek Well-Known Member

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    This is what it looks like on my Biz. Glug glug outlet easy to install and remove.
    20170405_081510.jpg
     

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    Last edited: Apr 5, 2017
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  17. thegeek

    thegeek Well-Known Member

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    The idea is that the outlet has a form that won't blow off and is glued into the upright outlet tube. Easy to see and remove the pump for inspection or service.
     
  18. Beaver

    Beaver 2020 Rookie of the Year Admiral (Supporter)

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    Printed one of these out today and tested it. With a normal 1-unit outlet I got 1.98gpm out of my brushless pump at 7.4v. Using one of these I got 2.75gpm.
     
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  19. Xanthar

    Xanthar Well-Known Member

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    You don't happen to have pics of both parts do you?
     
  20. Xanthar

    Xanthar Well-Known Member

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    Nice! Is that a tapered endmill?
     
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