Team Bitza

**PJ-27** · 21st December 2012, 20:47

BitzaWood Revo now has a proper disk. Dan turned it down from the master pulley of a V6 Mondeo and added tool steel teeth.
Video to follow!

**Eventorizon** · 21st December 2012, 22:18

That looks seriously nasty! That tooth is huge!!! Top speed? Weight?

**Liftoff** · 22nd December 2012, 07:29

Nice! would like to see the video of it in action

...just a small observation - wouldn't the tooth be more effective if it were fixed with the sharp edge facing outwards?

**PJ-27** · 22nd December 2012, 10:04

@Liftoff, I'm not quite sure I know what you mean? The sharp edge of the tooth is at the very edge of the radius.
Dan then machined a gradual radius on the outside of the tooth so as much mass as possible is away from the centre and behind the sharp edge without protruding beyond the maximum diameter.

@Eventorizon about 3000rpm 2.5kgs. The setup was originally for those wood saws, for which I didn't want a huge amount of top speed.
The plan is to do a voltage upgrade to 6s which should double the RPM.

**Ellis** · 22nd December 2012, 10:19

That looks seriously nasty. One day you have to build a featherweight K2!

**Liftoff** · 22nd December 2012, 10:41

I see what you mean, the radius on the outside of the tooth is at a tangent to the pulley - looking back at the photos its clear... That machine will cause some serious amount of damage!

**PJ-27** · 22nd December 2012, 18:16

It packs a decent amount of punch for a rather small diameter.
The disk is good but the rest is pretty flawed!

I like the look of K2, a similar low profile design is what I was thinking for the re-design. Reluctant to start though, don't know if I'll have time before April.