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3D printed knobs

Discussion in 'Tele Home Depot' started by Peltogyne, Feb 3, 2018.

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  1. Peltogyne

    Peltogyne Friend of Leo's

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    ... and speaking of knobs, anyone else trying to 3D print some? I've gotten the function down but the finish detail doesn't look good up close. Yet.
     

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  2. slick4772

    slick4772 Tele-Meister

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    I’d be interested in 3D printed knobs if someone has a printer and would be willing to make me some. I’m looking for those plastic Fender ones with the F on top - the kind that were on the HM strat.
     
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  3. tdoty

    tdoty Tele-Meister

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    3D printing hasn't caught up with injecton molding when it comes to surface finish. I work in the molding industry and have had my 3D printer for a while. I like printing for rapid development stuff, but the surface finish just isn't there. Printing in ABS and post-treating with acetone can help.
     
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  4. Peltogyne

    Peltogyne Friend of Leo's

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    So true. I've been printing in PETG and sanding the finish but it doesn't come close to the quality of a $2 knob from ebay. I also like TPU for the rubbery feel.
     
  5. Snowcave

    Snowcave TDPRI Member

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    I've done some 3d printing. Try making a plaster cast of a 3d printed part, then smoothing the inside of the mold to a better surface finish and pouring some kind of resin into it. Or just pour the resin then finish the surface on the cast part after removing it from the mold.

    It might be easier to get a good surface by using the 3d print as a way to make a plaster mold, instead of using the 3d print directly. Good luck!
     
  6. tdoty

    tdoty Tele-Meister

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    A knurled TPU knob with a smooth cap could be very nice! Or 3D printed knurls slipped over a wooden knob?
     
  7. Peltogyne

    Peltogyne Friend of Leo's

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    I do like the TPU knobs and the way they feel. Needs more work on the finish than the hard plastics. It's probably more useable in black and if you don't zoom in this close.

    IMG_6672.jpg
     
  8. Peltogyne

    Peltogyne Friend of Leo's

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    I found one on Reverb for $30! Cool knob, I could model it in 3D but couldn't come close to the level of detail it has with my printer.

    [​IMG]
     
  9. Amerman

    Amerman TDPRI Member

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    I think if you're reproducing something that already exists, for small runs silicon moulds are the way to go.

    That said, I'm excited to see what could be done with 3D printed knobs. I guess it could be designed to use the surface texture as a feature?
     
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