4 Hour Bruder Dozer

[motocrawler]

Originally Posted by RCP57

No problem Mario! It's by far the cheapest toy in my collection. The dozer came from Winners at $20 plus tax, the 360 servos came from Sparkfun and are under $15. They seem to have ok torque(60oz/in I believe) considering I'm running it on 4 AA batteries at the moment. The biggest trouble is the tracks but I don't think its unfixable. Should be good fun in soft stuff or as you say just to load and unload.

Reg

Well done! I have done a similar conversion but I used the wheels closest to the blade as my drive wheels. If you look at the track you can see that the wheel provides the most surface area against the track and therefore reducing slip. I also lined all the wheels with a 1/16" rubber to reduce any slack and increase friction. The dozer works incredibly well once I did this, my weak link now is the torque on the continous rotation drive servo's.

[RCP57]

Originally Posted by motocrawler

Well done! I have done a similar conversion but I used the wheels closest to the blade as my drive wheels. If you look at the track you can see that the wheel provides the most surface area against the track and therefore reducing slip. I also lined all the wheels with a 1/16" rubber to reduce any slack and increase friction. The dozer works incredibly well once I did this, my weak link now is the torque on the continous rotation drive servo's.

Thanks, I agree that it would have been the better place for them but it doesn't work too bad where they are. I have some rubber coating stuff that I'm going to try on the drive wheels but it if doesn't end up having a lot of power to push dirt that's ok. I have the metal toys for outside anyway but I'm no longer allowed (for good reason) to bring them in the house so the Bruders are house pets!
I hope to do the wheel loader next so I may steal some of your ideas!

Thanks Reg