3D Printing What Are You Printing Today?

Discussion in '3-D Printing and Related topics' started by DRAGON64, Jan 21, 2019.

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  1. Mar 4, 2019 #151

    manixFan

    manixFan

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    I’ve been testing mine (newly installed MK3S kit) and although the filament sensor worked the first couple of times I tried to auto load filament it no longer works. Which is a real bummer since better sensor reliability is one of the main points of the redesign. And the filament binds in the throat between the bond tech gear and PTFE tube of the hot end. I’ll have to dissemble it to fix everything. I know I did not miss the pins on the filament sensor since it worked a couple of times so I’m hoping it’s something I can fix.

    I also printed a temperature test tower (using Hatchbox PTEG) and really did not really see much difference between the different temps. Anyone else try one? I used the gcode version that had the temp settings built in.

    Tony
     
  2. Mar 4, 2019 #152

    mpitfield

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    Did you say MK3S and BondTech? I know they were working on a filament retrofit for the new sensor and BondTech but I wasn't aware that there was a "fix". Is this the official retrofit from BondTech?
     
  3. Mar 4, 2019 #153

    cwbullet

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    Next will be the bondtech and gold hotend. There is a fix. Bondtech posted it on their blog. You have to print it yourself.

    The MK3S is a great update. The new filament sensor finally works. I replaced both fans. Man, this thing is silent now.
     
  4. Mar 4, 2019 #154

    mpitfield

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    Cool thanks for the update, BTW what fans did you replace your stock ones with?

    I picked up two replacement fans for teh hotend but I have not swapped them as it involves lengthening the wires, making a wiring harness with a heat resistant sleeve and header that I don't have. The fans I grabbed (Delta ASB0405HHA-AF00) are apparently equivalent to the Sunon fan which is apparently an improvement over the stock Noctura, but sold out everywhere.
     
  5. Mar 4, 2019 #155

    cwbullet

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    I have a bunch of Chinese knockoffs I am trying. They are actually quieter and cheaper than the stock fans.
     
  6. Mar 4, 2019 #156

    Eyesinthesky

    Eyesinthesky

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    I'll be printing out a motor retainer for a special project I'm working on. Now I'm just printing a test piece to make sure the diameter is correct. I know what you're thinking, you can't use plastic for the motor retainer, you're right. I'm using the printed piece to make a silicone mold and then I will fabricate the actual part for the rocket using JB Weld.
    [​IMG]
     
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  7. Mar 4, 2019 #157

    cwbullet

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    Pretty awesome design. I can’t want to see the final project.
     
  8. Mar 4, 2019 #158

    Eyesinthesky

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    Thanks but you'll have to wait a while. I suspect this project will be a very long time in the making. The bell retainer is for strap on boosters of a larger rocket. Here are a couple more images of the design. The rocket (yet to have a name, suggestions welcomed) is an upgrade to one I did years ago. It was only two strap on boosters on a 6" rocket. I was going to rebuild it but decided to make an entirely new rocket.

    [​IMG]

    Each strap on booster will be deployed after their motor burnout and I wanted them to be stable, hence the little fins on the bell housing.

    [​IMG]

    Many of the parts used for securing and deploying the booster will be made as described above, printed 3D, make a silicone mold, then fabricate using JB weld.
     
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  9. Mar 4, 2019 #159

    cwbullet

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    I am trying to design a 3D printed switch.
     
  10. Mar 4, 2019 #160

    manixFan

    manixFan

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    Sorry, I mean the supplied Bondtech gears and how they fit into the new MK3S extruder housing, not the full Bondtech extruder. Other than the new MK3S upgrade, my printer so far is just the stock kit.

    Tony
     
  11. Mar 5, 2019 #161

    cwbullet

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    Bondtech currently requires the user to print a filament sensor holder for it to work with the MK3S.
     
  12. Mar 5, 2019 #162

    georgegassaway

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    A friend is sending me some 3D printed parts for my next special project.
    [​IMG]
    This will make a LOT more sense once I get the project far enough along to start a Build Thread, and will give all due credit to the 3D maker. Hopeful first flight by end of April (will not be able start the build for the next 3 weeks).

    99% chance that any guesses as to the intended purpose of both parts together would be wrong. No credit for "sort of half-right, maybe" :)

    This isn't even the neatest stuff he's printing, but to show more would give away too much.
     
    Last edited: Mar 5, 2019
  13. Mar 5, 2019 #163

    manixFan

    manixFan

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    While not as interesting as George's parts, these are exactly the kind of thing I got a 3D printer for. I have a tower that is almost all 1010 rail. I made it to be easily field adjustable to a new diameter with a single tool in under 15 minutes. I used it at BALLS last year and it worked very well. However it does not have any 'halo' supports and I was worried that when I use longer rails they may flex. So I printed some brackets to allow me to use a short piece of rail as a support and still keep it very quick to adjust.

    For strength they are printed in PETG with 6 perimeters and 4 layers top and bottom, 20% infill (although there was not a lot of volume left to fill). The screw holes are also surrounded by 6 perimeters so they form a good base for the screw head. Overall they are very sturdy. They took only a few minutes to design and printed quickly. Very happy with the result.

    Tony

    brackets.jpg
     
  14. Mar 5, 2019 #164

    mpitfield

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    Cone off the external fuel tank for the space shuttle and the design is part of the ejection system?
     
  15. Mar 5, 2019 #165

    RalfB

    RalfB

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    Hello,
    I needed a tip for my new Astrobee D.
    The first attempt was a classic 3D print.

    20181213_201144.jpg
     
  16. Mar 5, 2019 #166

    RalfB

    RalfB

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    I did not like it that much, as it does not match the beautiful carbon tube of the booster.
    That's why I printed a two-part mold.
    20181223_215926.jpg
     
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  17. Mar 5, 2019 #167

    RalfB

    RalfB

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    I polished the mold twice with wax and coated it with a release agent. In the form I introduced glass fiber fabric and epoxy resin . The shape was surprisingly easy to remove.
    The result can be seen for the first attempt. 20190210_005145.jpg
     
    Last edited: Mar 5, 2019
  18. Mar 5, 2019 #168

    RalfB

    RalfB

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    I did the same for E-Bay's bulkhead 20190209_092921.jpg 20190209_111216.jpg
     
  19. Mar 5, 2019 #169

    RalfB

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  20. Mar 5, 2019 #170

    mpitfield

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    Very cool. I was wondering how well this medium would work for molding parts.
     
  21. Mar 5, 2019 #171

    mpitfield

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  22. Mar 5, 2019 #172

    RalfB

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    I built the CO2 system myself.
    It consists of a 15mm aluminum tube and
    Union nuts from the compressed air sector.
    I bought the right threading dies for it.
    I hope Google translator does his job well and you can understand what I'm writing.
     
  23. Mar 5, 2019 #173

    cwbullet

    cwbullet

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    F06648D9-3B72-4F76-9B6E-CB1D5B2A1178.jpeg
    I am printing a Big Daddy type fin can. Only 13 hours to go.
     
  24. Mar 5, 2019 #174

    RalfB

    RalfB

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    It's also a great way for couplers and reducers. The shapes can be used many times, saving even more material.
     
  25. Mar 5, 2019 #175

    georgegassaway

    georgegassaway

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    Nope. :) Not shuttle related or ejection related at all. Not "scale" parts. Those parts are .92" diameter, BTW. But that tidbit is more likely to lead you astray than to help (no use looking up tube sizes, the assembly is not meant to fit in a tube.)
     
  26. Mar 5, 2019 #176

    mpitfield

    mpitfield

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    I think your pic got reversed?
     
    Last edited: Mar 5, 2019
  27. Mar 5, 2019 #177

    cwbullet

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    Update on Big Daddy Fin Can:

    6F9EDCE6-C3A1-490D-9A38-1086ECE164E7.jpeg
     
  28. Mar 6, 2019 #178

    cwbullet

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    Update on my print:
    printer.jpg
     
  29. Mar 6, 2019 #179

    mpitfield

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    Now I see it. I perceived the bottom bumpy supports as part of the fin and I thought, Chuck is going to have to do a lot of sanding or man that is not going to be very aerodynamic. I can see some of that "ghosting" on the fin that correlates with the layers where the supports are.
     
  30. Mar 6, 2019 #180

    cwbullet

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    Yup. Those are supports and with any luck, they will just pop off.

    My print surface is a little old. It has over 8K of filament printed in it alone. I may have adhesion problems because of its age.

    I just cracked out theking surface and it is printing with adhesion promotion.
     

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