Jump rope handles mould

INJECTION

MOULD

Difficulty:

Medium
Time Required:

< 1 week
Views:
153
Creator:
precious-plastic-estonia
Country:
Estonia
Email:
estpreciousplastic@gmail.com
Facebook: facebook.com/estpreciousplastic
Instagram: instagram.com/estpreciousplastic
Website: plastic.makerspace.ee
Downloads:
4

Jump rope is an effective fitness tool. This mold allows for making a jump rope handle and is designed for use with an injection machine. It is straightforward to operate.

Modifications to the mold may be required based on the specific configuration of the injection machine.

Local price is approximately 120 EUR (about $135 USD).

Browse Files

Download
Manufacture
Inject the handles

1

Download

The design includes four laser-cut plates, a pipe, and an insert. The files are provided in all necessary formats for local fabrication orders.
2

Manufacture

The pipe and insert require metal lathe work, which was outsourced to a local fabricator with drawings provided. The plates are laser-cut. The thicker plates support the pipe and insert, and one thick plate secures the insert with a bolt.
3

Inject the handles
Injection Moulding Process

Preparation:
Begin by preparing the machine, material, and mould.

Material Suitability:
- PP: Fills the mould effectively.
- HDPE: More viscous; requires higher injection pressure and is more challenging for this mould.
Mould Connection:
Ensure proper adapter or connection. A sturdy jack pushes the mould inlet onto the injection nozzle.

Lubrication and Release:
Apply lubrication to the insert bit. If cooled too long, the product may shrink and stick. Use rubberized gloves and a twisting motion for release.

Post-Processing:
Clip the injection point with pliers or a knife. Drill a 6-8mm (approximately 0.24-0.31 inches) hole at the end, preferably with a longer drill bit from the inside of the jump rope handle.

Finishing Touch:
For the jump rope, use a 6mm (approximately 0.24 inches) paracord-type rope.