Bruder Delta tracked loader

[td9clyde]

yep the machines you build are awsome i wouldn't have thought of useing servos for drives or putting in the twin gear drive box very nice work

[W900snowman]

Scott, thanks for the awesome photos and for posting a parts list. It's a big help and very informative.

[SmallHaul]

Originally Posted by chaseracer

another great conversion Scott, super work as always, and thanks for all the great pic on how you make these work. I am sure is a big help for alott of us thinking of doing one.

Thanks and you are welcome.

Originally Posted by td9clyde

yep the machines you build are awsome i wouldn't have thought of useing servos for drives or putting in the twin gear drive box very nice work

Thank You very much. I tested, repaired & installed automated vehicles for many years. So, it gave me a good feel for hydraulics, screw drives & servo motors.

Originally Posted by W900snowman

Scott, thanks for the awesome photos and for posting a parts list. It's a big help and very informative.

You are welcome.

Since I had to order more parts, I have a more accurate list:

Radio system
Tamiya twin motor gearbox
shims for tamiya gearbox assembly (you loose about 10 to 20% of gear contact on some of them if you leave them sloppy)
silicone to seal gearbox up (makes it last a very long time)
2 x slotcar motors (tamiya motors are 3.5 volts and fry quickly)
Aluminum stock to make drive hubs
4-40 screws & washers to secure gearbox to chassis
Saber tooth motor controller
5 volt 5 amp (continuous) bec
Hitec Digital HS-7955 TG lift servo
2 x hitec hs-5065mg digital servos for bucket curl
Hitec servo programmer
3" Y harness to join the 2 bucket curl servos
2 x 12" male servo leads to extend the bucket curl servos
heat shrink for all of the bucket curl servo wiring
piece of bicycle inner tube for lift lever cover (need to post pics)
4-40 rod and clevis for lift lever
lead weight
and 1 boat load of patience

[Trixx]

Hi,

How do you use the channels on the radio?

Somthing like my drawing?

/Andreas

[SmallHaul]

Originally Posted by Trixx

Hi,

How do you use the channels on the radio?

Somthing like my drawing?

/Andreas

The bottom drawing is how I like to operate but, I steer with my right.


I decided I should keep the prototype Loader for myself and run the heck out of it to make sure everything holds up nice. After running it for a couple of hours moving dirt I noticed that the motors where getting really hot because of the 205:1 transmission that I was using. If you listen to motors in the video they are screaming at anything over half throttle. So, I put the heavier duty tamiya tranny in it (the gears are twice as thick) and now the drive ratio is 115:1 and now the motors never go over 130 degrees even after 1 hour of constant work. It still has power to spare and it sounds much better without the motors screaming.

I was asked to make a video with it running slower. I didn't realize that a Cat 297C has a top speed of only 8.5 mph.

http://www.youtube.com/my_videos?feature=mhum