Recent content by bphillips921

  1. bphillips921

    Trying to determine linear actuator force needed

    That's what I was worried about. I'm starting to think this isn't worth it for the small amount of lift I'd get out of the projector. Although it's still fun to tinker!
  2. bphillips921

    Trying to determine linear actuator force needed

    I don't think I have the space to drop it vertically. I want the projector tight to the ceiling when raised but I don't have any room above the drywall for any mechanics that I'd need to raise it vertically. At least from what I can think of to raise it.
  3. bphillips921

    Trying to determine linear actuator force needed

    Projector 17.7"W x 20.5"L x 6.7"H 24.5 pounds https://www.amazon.com/gp/product/B07GYP68HW/?tag=pfamazon01-20 Here are the actuator specs. https://www.amazon.com/dp/B07W8N8X22/?tag=pfamazon01-20
  4. bphillips921

    Trying to determine linear actuator force needed

    So, the projector will not be concealed, only elevated to a position underneath the ceiling. - Correct. Will it remain horizontal for all positions of the arm? - Correct. The projector will pivot at the end of the arm and will stay horizontal Is there accessible room above that hard ceiling? -...
  5. bphillips921

    Trying to determine linear actuator force needed

    Here is a picture of the space with a mock up of the two projector positions. The movie screen will drop down from the ceiling in front of that black fireplace. The projector will mount just behind that 2nd beam (closest beam in the picture) Here is a simplified mock-up in both the...
  6. bphillips921

    Trying to determine linear actuator force needed

    Would I be able to get the orange piece near vertical and limit sag by redesigning it like this?
  7. bphillips921

    Trying to determine linear actuator force needed

    Thanks for the help! I figured the forces to get the orange piece near vertical would be huge. I like the design of what you posted much better, my issue is clearances. If I just mounted the projector fixed to the ceiling it would be about 12 inches below the ceiling. In order for it to make...
  8. bphillips921

    Trying to determine linear actuator force needed

    I'm designing a pivot lift system to lift my movie projector up when not in use. I've designed the parts and begun 3D printing, but am concerned that the 3D print won't be strong enough, so I may bite the bullet and have the parts CNC machined. If I do that I want to be certain that I have the...
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