Spring Clamp

A strong spring clamp I am using outdoors. I went down the track of 3D Printing a clamp because I could not buy a clamp what was wide enough without it being a huge orange thing. This has been outside in summer in 30C temps for a few months with no problems.

Fusion 360 files are included so you can modify to suit your needs.

Parts

• 1 x Torsion Spring
• 2 x M3 35mm bolts
• 2 x M3 nylock nuts
• 1 x M4 40mm bolt
• 2 x M4 washer
• 1 x M4 nylock nut

Torsion Spring specs

• 90 Deg
• 3 laps 7.5mm
• Wire 2.5mm
• Outer wire diameter 14mm

https://www.aliexpress.com/item/1005005451142538.html

Print

• PETG
• Infill 60%
• Gyroid infill pattern

I found it needs to be a strong print or the torsion spring will break the print.

I tried ASA which is supposed to have better UV protection but it was not strong enough.

Assembly

• Bolt the two clamp halves and the Torrision Sping with the M4 bolt
• Attach the Jaws using the M3 bolts
• Don't overtighten the bolts.

UV Protection

Spray with a clear UV spray can

Created fusion 360 files . Long jaw. Used torsion spring from  AliExpress