Mental RC Mini

[Garry]

I had a HPI Pro 4 lying around that had done a season of nationals and had been resigned to a spares car for my Cyclone, but after selling the Cyclone and getting a Schumacher Mi3, I had the Pro 4 going spare.

So instead of leaving it to gather dust, or punting it on ebay, I got busy with Mr Dremel and created this:

Sorry for the blurryness, it was about to rain and it finally did when I snapped the last one.











The body was from an M03 I got from ebay and was fit for the bin and had been painted white on the inside, silver the blue on the outside, so was perfect for some chopping.

It still took 6 cells, but this time I could fit my Orion 4800mah LiPo in. The front gearbox design meant it could be swapped from a spool, or a diff to a oneway when needed.

When I took the pics, there was a couple of jobs needed doing such as countersinking the rear underside and making some shock mount screw tubes to stop the front shocks moving forwards under compression, but when they were done, it was pretty quick.

And still lighter than an M03. Bonus!

Any Q's, just ask.

[Garry]

And along a similar theme, here's my second mine (of about 5 I've had), an M03 with TL01 suspension, makign it 190mm wide instead of 160mm.

Guess what influenced the 'signwriting'....

[bodieanddoyle]

nice! like the steering mechanism on the first one, simple direct and efficient

[rtlkyuubi]

the steering rack infront of the driveshafts promotes oversteer in a normal car. wonder if its the same with rc's?

Ryan.

[TerraRoot]

Steering rack position only effects ackerman and bumpsteer.

Don't want to be rude, but wtf made you think the rack can promote over/under steer?

[popuptoaster]

possibly something to do with in a perfect steering set up the wheels should be pulled by the steering rather than pushed (which puts the rack in front of the wheel centre) me race car builder mate was trying to explain about some set up a guy tried where the rack pulled the loaded outside wheel and and the loaded wheel pulled the inside one through a linkage, which you can get your head around untill you turn the steering wheel the other way and try to work out how he made the same thing happen in the other direction without the original linkage pushing. steering and suspension is way to complicated, my bud is alwas moaning about engines cos he wants to put suspension links where the sump goes.

[rtlkyuubi]

popuptoaster said:

possibly something to do with in a perfect steering set up the wheels should be pulled by the steering rather than pushed (which puts the rack in front of the wheel centre) me race car builder mate was trying to explain about some set up a guy tried where the rack pulled the loaded outside wheel and and the loaded wheel pulled the inside one through a linkage, which you can get your head around untill you turn the steering wheel the other way and try to work out how he made the same thing happen in the other direction without the original linkage pushing. steering and suspension is way to complicated, my bud is alwas moaning about engines cos he wants to put suspension links where the sump goes.

what he said

[Garry]

I haven't got a clue about the physics of it, I just needed somewhere for the steering servo to go and that was the only space left without needing stupidly long steering links.

Worked quite well on track, just the solid front drive axle limited inital entry steering. Soon sorted thta by replacing it with a regular ball differential.