Was doing some tweaks on the rear axles:


I was about to doing a centered 3rd axle but I've offset the pumpkin 15mm to improve driveshaft angles. From reference photos, this model of Unimog axles are slight offset so no harm done



Modified the portal covers, making them stronger without messing much with the look. Printed 4 but did 2 more and upgraded also the front axle.







Middle axle:







Third axle






Because the offset diff of the third axle, had to do new unequal shafts










Middle axle with the driveshaft bearing carrier











Assembled...have to organize all the wiring again...

Did this to move the battery to a more practical location








I'm planning add some sort of connector on the bottom in order to take out the whole box to replace the battery instead of doing "finger olimpics" inside the cargo area

Time for change...

One thing I think I need to improve in this truck is the front axle width. Wheels stick out from the fenders and there's too much scrub radius from the added width of the portal boxes,making the tires rub


So I've gather some parts and make new portal boxes:



Yes, they look similar,albeit being made from scratch instead of copying the old ones.

I'm using a 12t portal gear and universal shafts from Capra. The big gear is the same 25t 32dp pinion but inverted(The section where the grub screw is fits perfectly on a 10x15x4 bearing!

At the moment, each portal box measures 5,5mm less than the old ones which is great. I can narrow the axle housing if needed,even if it don't solve the scrub radius problem

Everything seems to be going well

Printed the 2 knuckles and 2 covers. Mounted, match the estimate of 11mm narrower axle. Doesn't seem much but is very noticeable with the cab.

At the moment, I'm printing a updated axle housing half. Only had to change a driveshaft bearing position by 1mm to fit the new Capra uni shafts




Before vs. now:

I'm not that happy with the printed files. They are strong but don't look that good. For now,they'll suffice but I'll try to improve. Switched ASA to PLA+ and helicoils to thread directly on plastic. Helicoils are cool but sometimes they would unscrew itself.


As it stands:


It has the diff,bearings and torquetube. Uni shafts turn smoothly so the dimensions seem right. Just need to shorten them 15mm each to be mounted in place

Assembled them, taking care of some rubbing.




On the truck , visually,there's virtually no diference altough being a brand new axle. Also, got rid of the helicoil threads. Was a bit of work, putting all of them and not always were strong as I thought . The panhard screw was always loose