Cat MT975B

[fhhhstix]

This is a tractor that I am working on right now. This will be all wheele drive and I am going to try to make my own gear boxes.













Thanks for looking
Travis Biddle

[Roadmasters]

Very cool! How many turn motors are those?

[fhhhstix]

Those are 85 turn motors.

[Roadmasters]

ok, thanks!

[rc_farmer]

Thats gonna be nice. A guy was trying to get me to convert one of those but i really wanted the track. I know you will do a great job with it. Keep us posted.

[fhhhstix]

Well here is an update Izzy came to visit yesterday and we built the rear gearbox while he was here and when he left I finished the front gear box and installed the servo and this morning I installed some electronics and took it for a spin. Sorry no build pics since I built it in less than a day but here is a video of the test run.

http://www.youtube.com/watch?v=kysDlpSROW8

I will try and get some pics of it later all but the rear gear box because I don't want to disassemble it just for a pic.

Travis

[Espeefan]

Nice job , Travis. Sounds like it runs really smooth too. Waiting for some photos of the axles and gearboxes!

[fhhhstix]

Here are some pics the best I can do till I take it apart again to do some changes.













Thanks for looking.

Travis

[Espeefan]

Originally Posted by fhhhstix

Hey, a Mack CH? You've been holding out on us.

[fhhhstix]

Originally Posted by Espeefan

Hey, a Mack CH? You've been holding out on us.

Well Nate at least one person is paying attention.

Travis

[SmallHaul]

Looks and runs nice Travis. Good work!

[fhhhstix]

Thanks SmallHaul. I just wish I had stoped and took time to get some pic's while I was building it but Izzy got me started and I just couldn't quit. I came in the house from the garage at 1am this mornig I just kept telling myself one more part and I will finish it tomarrow next thing I knew I was driving it on the bench with a battery.

Travis

[Snochaser]

Nice job Travis. Have you been planning the mechanics for quite a while? I know you've had the tractor for some time. What did you use for the steering servo?
I hope to get to the one you got me sometime this winter.

-Ben

[fhhhstix]

Thanks Snochaser I have had the stuff to build it for a while just needed a push to do it. The steering servo is a Hitec 1/4 scale.

Travis

[rc_farmer]

Travis nice to see the the Challenger running. Sounds and run really smooth. Good to see the tractors are gaining ground.

[dirtpusher9]

Nice job Travis, what does that make now 160 RC's?lol How is the power of it?

[fhhhstix]

Originally Posted by dirtpusher9

Nice job Travis, what does that make now 160 RC's?lol How is the power of it?

In the video it is at full speed so I have plenty of gear reduction but it is still lacking power so I will need to try a little higher voltage and a different esc the one I am using is a cheap tazer 12 that I had to open up and do some soldering on after one of the motors wasn't insulated enough and shorted out on the frame this morning.

Travis

[td9clyde]

wow!!!!!!!!! dam you built that fast wish i was building that fast lol thought you was going to build and oval??? where did the mack show up from man you are holdin out lmao nice job on the tractor though i like it now all you need is an earthmaster to go behind it lol

[woodhog]

TRACTOR LOOKS GREAT LOOKS LIKE ITS LITE ON BACK PUT 3PT AND A 50 BOTTOM PLOW LMAO

[fhhhstix]

Thanks for the comments guys and I tore it apart tonight and reworked some things and took some pics. After I put it back together I tried it out and I am very pleased with the performance I tied a piece of wire around my 34# box of lead that I use to test my screw drives and it drug it around the living room on the carpet with no problem at all I am guessing it was pulling about 40# with the drag on the carpet. I will get the scale out tomorrow and see if I can get a good reading of how much it really pulled. Well here are some pics of the insides.

Rear assy.











Front assy.















Thanks for looking.
Travis