RC Tank Warfare community hobby forum

Roboticus_Prime wrote:Sorry it took so long. We've been pretty busy lately. Here's my video overview of my B16.

phpBB [video]

We need a video of it pulling the Sherman please pretty please

Will01Capri wrote:

Tiger6 wrote:You'll need to cut the shafts shorter so that the U-joint butts up against the back of the housing and acts as a thrust face - this is why they don't go on the shaft to start with, they aren't supposed to go over the knurled part.

Can re-use the plastic bearings they use in the differentials as a spacer against the bearing face when you repalce the internals for metal parts. Means it doesn't wear against the diff plastic and the plastic bearing can be sacrificial

The U-joint provides the thrust face to keep the plastic bearing in place. Without this it fall out over time and, having lost half of your effective bearing width, your input shaft starts to wobble around and wear the gear teeth.

Will01Capri wrote:OUCH!
Gearbest double tyre setup!
https://www.gearbest.com/rc-car-parts/p ... id=1433363

Yikes! suddenly my 3D printing powered electric bill seems like good value for money

@Forgebear - when are we getting these over here? https://www.gearbest.com/helifar-HB-%5E ... 805-_gear/

I'd buy the hell out of them in both 4x4 and 6x6, as would pretty much anyone else with Leopards and Challys.

Tiger6 wrote:

Will01Capri wrote:

Tiger6 wrote:You'll need to cut the shafts shorter so that the U-joint butts up against the back of the housing and acts as a thrust face - this is why they don't go on the shaft to start with, they aren't supposed to go over the knurled part.

Can re-use the plastic bearings they use in the differentials as a spacer against the bearing face when you repalce the internals for metal parts. Means it doesn't wear against the diff plastic and the plastic bearing can be sacrificial

The U-joint provides the thrust face to keep the plastic bearing in place. Without this it fall out over time and, having lost half of your effective bearing width, your input shaft starts to wobble around and wear the gear teeth.

I just added a second bushing to solve that problem.

Meatball9584 wrote:We need a video of it pulling the Sherman please pretty please

Soon. I need to figure out a way to shim the inside of the diff without taking the driveshaft off.

Roboticus_Prime wrote:

Meatball9584 wrote:We need a video of it pulling the Sherman please pretty please

Soon. I need to figure out a way to shim the inside of the diff without taking the driveshaft off.

The middle bridge axle!

Managed to shim the main input shaft on the center drive axle. I did this by cutting an opening on a small lock washer, wedging it in there, and greasing it up.

Now that the pinion has solid contact with the ring gear, the truck can now haul the 11.5 lb tank easy. Though with this kind of weight, I only recommend paved surfaces.

Ok that's incredible. Absolute goals right there

So my part WPL chassis & otherwise almost entirely 3D printed body is almost complete in terms of the basic build. Now just alot of fettling and making it work and look nice.

Well chuffed with my lamp covers
Made some headlamps for the GAZ69. Need paint, but they work well by Will Pattinson, on Flickr

Made some headlamps for the GAZ69. Need paint, but they work well by Will Pattinson, on Flickr

Made some headlamps for the GAZ69. Need paint, but they work well by Will Pattinson, on Flickr

Radiator hiding in behind the grill
GAZ 69. Radiator and full size servo as this is going to get abuse off road. by Will Pattinson, on Flickr
Radiator
GAZ 69. Radiator and full size servo as this is going to get abuse off road. by Will Pattinson, on Flickr

GAZ 69. Radiator and full size servo as this is going to get abuse off road. by Will Pattinson, on Flickr

Standard size servo, only because this will be crawling and getting alot of abuse.
GAZ 69. Radiator and full size servo as this is going to get abuse off road. by Will Pattinson, on Flickr

3D faux engine printed to cover and also hold the standard servo in place
Engine for the GAZ 69, which ask holds the servo in place by Will Pattinson, on Flickr

A close up of the engine
Engine for the GAZ 69, which ask holds the servo in place by Will Pattinson, on Flickr

Front bumper custom designed and printed
Front bumper printed and mocked up in position by Will Pattinson, on Flickr


I have ordered 2x 12v motors as i am going to run this little thing on 3S power! So there will be a stowage box in the back for battery & Rx, although i will make these look like
munition crates.
Metal internals for the axles are coming aswell so it can take the grunt, along with metal driveshafts. My wife is making a tarpaulin cover for the back and top of the cab aswell.

Thing of beauty Will


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