Morris Quad and 25pdr Gun

[wibblywobbly]

Thought I would drop this one in here, I should really do the limber as well but reversing will be diabolical, and it will need a huge turning circle

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[RobW]

Just practice.

Grandad reckoned it was easier than reversing some farm equipment! He got a fair bit of practice zig zagging his way up Italy.

[Will01Capri]

Very cool and that bit different aswell.
I like the truck.
How did you do the 25 pounder?

[wibblywobbly]

The Quad and the gun are 3D printed, so I had to design both myself using Openscad. It was a pretty complex pair of models to do, but they worked out ok in the end. The chassis is a shortened HL one, converted to 2WD, with 3D printed battery/rx tray and front suspension mount.

I have a minor problem with the HL transmission, the driveshaft doesn't seem to be firmly located and I can hear it clicking when it slips. It's odd because I didn't move the rear axle or the gearbox? I'll sort that out at some point.

[Will01Capri]

Nice work there.

As for clicking, all my HL trucks do that and I think it is the drive shaft angle. But doesn't seem to do any harm.

[wibblywobbly]

Thanks for letting me know that yours do it too. It looks like the two halves don't get pushed up against each other?

[Will01Capri]

If you mean the diff covers then you need to align the pins and bolt holes as they only fit in 2 directions it 4. I think that makes sense.
All of mine are a tight fit and pull straight and flat. They do pinch together with a click when tightening.

The other click is also from the spring leaf moving in the hangers. But i intend fixing that with swing mounts

[wibblywobbly]

I assumed it was the two cylindrical parts of the driveshafts not mating up properly, I'll check the springs though.

[wibblywobbly]

After a lot of looking at it I found the source of my click. The front drive shafts are disconnected, the one coming off the gearbox had a small piece of plastic left on it that was knocking the back of the steering servo. It only did it when the suspension compressed slightly when turning. I cut it off and bingo, noise gone.

[Will01Capri]

bonus

As for driveshafts apparently on Taobao online China shop they now sell metal driveshafts for these trucks, but i cannot find anyone else.
But my rear one has started to pop out under load and i am thinking about either trying to buy or make some on my Lathe which i just bought