Thingiverse
Exercize Push-Up Bars / Handles (rotating)
by Thingiverse
Last crawled date: 5 years, 10 months ago
This is for helping with pushups. They give some extra height to increase the range of motion of the pushups. This design also can rotate while using them so that you can change the angle of your hands while doing the pushups. The entire thing is made of PLA including the balls for the bearing type function.
I went through a few revisions until I found what design and infill was strong enough for my needs. With that said, it was only tested with a 165 pound person with a 65 pound kid on my back. With the reinforcements using infill overrides (see further down), I did not see any flexing or signs of problems but from what I have seen of PLA with thicker prints, PLA is rather ridged so when it breaks, it tends to break quickly and unexpectedly. If you want something that is safe, then I would recommend finding a commercial product that has some guarantees about safety and save yourself some printing time. I also don't know how long this will hold up over time. If you are willing to live on the bleeding edge (possibly literally if it breaks on you) then go ahead and use this at your own risk. It works for me but might not work for you. This is especially true given that not all printers print the same way. If your printer is under-extruding or having any other issue that could affect the print then you might get completely different results.
I have included Infill objects to be used to override the 'Infill Line Multiplier' for critical areas in the Base and the Top objects so that you don't have to print the entire objects with higher strength settings.
I have also included a cap tool to help screw the cap into place.
Base.stl - The bottom of the thing
Top.stl - The... top of the thing :)
Cap.stl - The cap to screw on to hold the parts together
Ball.stl - The ball for the bearing area (print 38 of them)
BaseInfillOverrideStructure.stl - An object to use that takes up areas inside the Base.stl object to override the 'Infill Lines Multiplier' for only certain areas of the Base.stl. Uses Cura's 'Per Model Setting'.
TopInfillOverrideStructure.stl - An object to use that takes up areas inside the Top.stl object to override the 'Infill Lines Multiplier' for only certain areas of the Top.stl. Uses Cura's 'Per Model Setting'.
CapTool.stl - A tool to use like a screwdriver to help loosen or tighten the cap.
I went through a few revisions until I found what design and infill was strong enough for my needs. With that said, it was only tested with a 165 pound person with a 65 pound kid on my back. With the reinforcements using infill overrides (see further down), I did not see any flexing or signs of problems but from what I have seen of PLA with thicker prints, PLA is rather ridged so when it breaks, it tends to break quickly and unexpectedly. If you want something that is safe, then I would recommend finding a commercial product that has some guarantees about safety and save yourself some printing time. I also don't know how long this will hold up over time. If you are willing to live on the bleeding edge (possibly literally if it breaks on you) then go ahead and use this at your own risk. It works for me but might not work for you. This is especially true given that not all printers print the same way. If your printer is under-extruding or having any other issue that could affect the print then you might get completely different results.
I have included Infill objects to be used to override the 'Infill Line Multiplier' for critical areas in the Base and the Top objects so that you don't have to print the entire objects with higher strength settings.
I have also included a cap tool to help screw the cap into place.
Base.stl - The bottom of the thing
Top.stl - The... top of the thing :)
Cap.stl - The cap to screw on to hold the parts together
Ball.stl - The ball for the bearing area (print 38 of them)
BaseInfillOverrideStructure.stl - An object to use that takes up areas inside the Base.stl object to override the 'Infill Lines Multiplier' for only certain areas of the Base.stl. Uses Cura's 'Per Model Setting'.
TopInfillOverrideStructure.stl - An object to use that takes up areas inside the Top.stl object to override the 'Infill Lines Multiplier' for only certain areas of the Top.stl. Uses Cura's 'Per Model Setting'.
CapTool.stl - A tool to use like a screwdriver to help loosen or tighten the cap.