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  • adamtimm1 commented on Vulcaman's instructable DIY-SLS-3D-Printer2 months ago
    DIY-SLS-3D-Printer

    Nice metal work! I would like to know where you source your lasers. I am hoping for a heavy enough laser to fuse plastic or metal but I am not sure what wattage will do the job.

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  • adamtimm1 commented on Niklaxzzz's instructable Homemade Tripod4 months ago
    Homemade Tripod

    I wish to heck I had this a few weeks ago. I will miss the lunar eclipse on the 21st! Thanks for posting!

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  • adamtimm1 commented on 3DSage's instructable Easy Way to Smooth PLA | No Sanding4 months ago
    Easy Way to Smooth PLA | No Sanding

    This was an exciting idea but from a standpoint of safety I agree with one of the commenters. Chemicals in the house and on the stove can be improved upon. I have not tried this but as a chemist it should work. I am busy residing my house so I hope someone will give it a try and give feed back. As I understand it the point is to envelope the PLA in EtA vapors so temp is a small thing. Longer exposure should compensate for heat on the PLA. The vapor pressure of Ethyl Acetate is 70 degrees C (158 F) at 760 mm of mercury EG sea level. Just for comparison the pressure at 1 mile high is 640 mm of mercury so the temperature of vaporization is lower. That is low enough that this may work well and get the chemicals off of the stove and out of the house.I suggest that a deep (deeper the b...

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    This was an exciting idea but from a standpoint of safety I agree with one of the commenters. Chemicals in the house and on the stove can be improved upon. I have not tried this but as a chemist it should work. I am busy residing my house so I hope someone will give it a try and give feed back. As I understand it the point is to envelope the PLA in EtA vapors so temp is a small thing. Longer exposure should compensate for heat on the PLA. The vapor pressure of Ethyl Acetate is 70 degrees C (158 F) at 760 mm of mercury EG sea level. Just for comparison the pressure at 1 mile high is 640 mm of mercury so the temperature of vaporization is lower. That is low enough that this may work well and get the chemicals off of the stove and out of the house.I suggest that a deep (deeper the better) jet black pot large enough for your parts can be used in the sun to vaporize the EtA. A couple of blocks set on the bottom of the pot can be used to support an aluminum screen on which to place the parts. Leave the lid slightly off of the pot as you would for popcorn. The heat from the sun should be enough to vaporize the EtA . My wife says I make things much more complicated.

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  • adamtimm1 commented on 3DSage's instructable Easy Way to Smooth PLA | No Sanding4 months ago
    Easy Way to Smooth PLA | No Sanding

    Great tip! I hope I can find ETA. The Fed just nixed MEK and I can't find it on a shelf.

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  • adamtimm1 followed TristramBudel1 year ago
      • Roti, the Filling Not the Pancake (Oso Njang)
      •  3D DLP Printer Kit Assembly and Calibration
      • Impresora 3D DLP De Alta Resolución !CASERA¡ (impresora Estereolitográfica 3D)
  • Make a maintainable DIY double-glazed window

    Actually it does matter what wood you use because the more porous woods absorb moisture more easily. That means in a sub tropical climate the windows could expand and contract with changes in humidity. It is only logical that denser less porous woods will better maintain their dimensions. Also the harder woods are, at least to me, easier to work.

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  • adamtimm1 commented on phmanzano's instructable Free professional wind turbine blade3 years ago
    Free professional wind turbine blade

    Do you have a CAD design for FreeCad or an Obj file that the blade parts can be printed from on a 3D printer? Adjustments in FreeCad should be easy but I am not good enough as yet to know if CSV can be converted to 3D print file. I can print light by decreasing the fill density then covering with fiberglass.

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