homemade ripstik / waveboard

Step 4 Making torsion-bar spring

Take 5 handsaw blades and cut them longways in half.

Take two pices of 5mm thick aluminium 10x30mm.
Drill 3 holes in each. Two 3mm and the middle one 2,5mm and make a thread for 3mm screw in it.

Screw those plates the the board just behind torsion bar

Put all of the torsion-bar parts together.

Put the handsaw blades inside the torsion-bar.

Mark where the holes for screws should be and drill them in the blade-halfs

Comments

[01010110]

I'm planning on doing this but I think i'll use steel sheet instead of saw blades. a bit more expensive but much more durable in the long run.

[winterflood_j]

Hi, Interesting torsion spring technique ! How did you cut the hand saw blades? The ones I know of (hack-saw blades, usually for cutting metal) are extremely tough (and brittle, they tend to snap if abused) -Jonathan

[jamiespark]

i did this once but if u use wood ones and layer a bunch it works