CAT Excavator

by retur, published

CAT Excavator by retur Jan 16, 2015
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21351Views 6431Downloads Found in Robotics


This is a remix of the original excavator that was from a volvo and it didn't look so good, so i just changed the body, lower body and the cabin so it look more like a Caterpillar.
Also i made it to fit a standard size servo for the boom, i used a 12 kg/cm servo from Hobby kin wich is enought

I also modelised bushing to fit at the place of the bearings in the tracks, it work well and i didn't want to buy bearings for something i played with like 5 time

For track and other boom servo you can buy 4.5 kg/cm servo at 3.50$ each on hobby king.

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Que bueno hubiera sido tener,ya no un manual de instrucciones....pero si para que son algunas de las piezas...cada uno diseña con su forma de pensar.....

do you have a video?

can any one confirm what servos r required thanks

please do you have a plan or a little instruction how to assemble track frame ? , what do you use to maintain track link ? thank you

i used pla 1.75mm filament then melted ends over using soldering iron

Where is the arm with a small servo ?

I used a standard servo now, the small one was not strong enough

Comments deleted.

The whole spur gear turn setup........ there is no pinion to print out? What is everyone using?????

I used a standard pinion, but I just uploaded a Pinion that is printable, if your printer is precise enought
Originaly my printer was not able to print it.

Great looking design! I'm trying to remix the Erdinger excavator to have similar construction of the body as you have. But I can't figure out how you have made the electrical connection to the servos driving the tracks.

i used direct wires, I dont have full rotation, that would be a great update

Рlease do contact photos turn. And a photo from the bottom.

Awh :(
Maybe I'll be able to edit in a couple of breaks which can be glued together ;)

Thanks for replying!

What's the largest piece? I mean, how big must the printer be?

conection to reciver and programing for x9 please

Nos special programming here, the boom and rotation are controled by your levers, and for the tracks I control them with the 2 knob on the top of the remote

This looks absolutely amazing! i'm about to make one. Can you please make some Pictures from the underside?

I like your design! Even if you say that mine doesn't look good ;-)

yeah, i should add som pictures of the assembly of it

Great looking excavator! Second the call for a bulldozer...

Nice work i bulldozer next :)