Post by Andrew Rowland on Dec 18, 2018 2:20:28 GMT -5
Ok, so some progress has been made.
All the parts have been ordered, several from Japan which will take a month to arrive.... and get held up in customs probably!
Meanwhile i've been working out how on earth i'm going to get this packaged up. Early on I was going to run the motor up in the bodywork but the pinion would have sat right in the open cockpit AND the COG would have been way too high. Then I realised that the side pods were just the right height to get the motor in.
It really is too tight but I dare say i'll make it work somehow.
In order to try to keep to the principles of scratch built (whatever that means), i'm going to do the other side pod and the top body in balsawood.
So what you see is effectively the chassis but it will double as the lower bodywork as there just isn't space for both.
One of the things I have learnt with these 4WD cars is that stiffness and level tyre contact are good things, so the chassis will be stiffened once all the bearing holders etc. go in.
There will be a or a series of screw down elements that hold all the bearings down into the chassis and the body will screw up from underneath to cover everything.
Last but not least the front diff precludes any sprt of normal guide so i've had to invent my own special low profile version with the scre fitting being at the extreme front of the car and the guide. I'm expecting the guide to need a few iterations before it is suitable for a round the world proxy.....
Post by Andrew Rowland on Dec 29, 2018 16:49:58 GMT -5
Well things have moved on and I have ordered a print form Shapeways of both the chassis and the guide.
Fitting the diffs in was very difficult in such a narrow body. I have had to work to very fine tolerances and this has made the bodywork very flimsy around the front axle 'wing' connection points. I have therefore had to incorporate a part fo the nose bodywork into the 3D print. Similarly at the rear both side pods have had to be used to hide the mechanicals.
It still gives me the majority of the bodywork to hand carve however.
I hope i've thought of everything. I am most worried that I won't be able to get the motor in! I may end up having to cut pieces out to get it seated in place…..
Still having fun, hope it is all worth it. Some of the parts have arrived but others are still weeks away apparently. The body should arrive in 2 weeks or so. I'll update after that.