Ball bearing crossfit jump rope

Intro

Need to get fit fast? Just jump faster with this speedy ball bearing enabled jump rope! 

Need to make your kids tired asap? Let them jump more within less time with this speed jump rope! 

Dimensions

The handles have a diameter of 28Ø mm. The grip is 100mm wide. 

For the length of the rope I would suggest: 

• Stand on the middle of the rope with your foots together
• Pull the rope up to your shoulders until there is tension on it.
• The ends of the rope (excluding handles) should be up to your armpits.

If you want to use the rope “play ground style” with 2 people swinging both ends of the rope I would make it a minimum of 3 meters long

Assembly

You need 2 (1 in each handle bar) commonly used 608zz bearings. 

• Put the bearing in the bearing cup (use a bit of force pushing it up side down on a table top)
• Put the top cap trough the bearing cup. The smooth part of the top cap should have a snug fit in side the bore hole of the bearing gripping it.
• Apply the security nut. Don't over tight it, the bearing needs to be able to role freely
• Use the thread of the bearing cup to attach it to the rest of the handle bar. 
• Pull a rope trough the hole of the top cap and secure it
• Repeat on the other side and you are done!

Printer settings

I'm printing on a Bambu lab P1P using the following settings:

• PTEG
• 0.4mm nozzle
• 0.15mm layer height
• 3 wall loops
• 15% gyroide infill 
• No supports
• No brims

Did a small trick in the slicer to have fussy walls on the grips which is nice. 

Attached the .3mf file as well for easy printing!

Remix

Please feel free to remix using Onshape: 

https://cad.onshape.com/documents/cafb1793e09cc6f5adf642a8/w/99686ecc27a43949f522edd0/e/3721111d475ab2c7f9c47574?renderMode=0&uiState=64eaf9732a1c3b61dee5d0a8

Feedback

Please provide feedback in the make comments, I'd love to improve this object with input from the community! 

Please like and upload a make, it helps!