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Ronin Marui Samurai runner build
Posted: Fri May 14, 2021 4:22 pm
by Dadio
Re: Ronin Marui Samurai runner build
Posted: Fri May 14, 2021 7:36 pm
by coxbros1
.....actually this is seriously cool! i aint playin
Re: Ronin Marui Samurai runner build
Posted: Sun May 16, 2021 2:53 am
by Dadio
Spent most of last night trying to CAD model one half of chassis

, It's a really complicated shape

What looks straight at first actually has 1° angle changes or 3.5° angles changes or starts as a square section the taper's upward

I don't think my daughter asking us to try the oversize wine glasses she gave us as a gift helped mutch

Re: Ronin Marui Samurai runner build
Posted: Sun May 16, 2021 5:18 am
by silvertriple
Hello!
That project kooks cool!
Currently looing at my Marui Hunter, but at some point, I will look to get a Samurai. Among the roll cages buggys of the eighties, it was part of the ones I was dreaming of. It find it even hotter than a Javelin...
Would love to find one to rebuild... In the meantime, i'll be watching this thread with some popcorns

Good luck!
A+
Marc
Re: Ronin Marui Samurai runner build
Posted: Mon May 17, 2021 3:32 pm
by Dadio
Think I'm going boss eyed but its getting close on the geometry .

Re: Ronin Marui Samurai runner build
Posted: Tue May 18, 2021 1:02 pm
by Dadio
Just one part of the chassis has been boggling me noggin all for almost a day , it's the rear roof pillar , just a nightmare but I've finally worked out how to accurately measure it , by putting long M3 screws through numerous screw holes and locking them with nuts then by using more nuts all threaded to the same level I can now triangulate the exact position ! It took me giving up and going for a walk with the dogs to clear the brain cheese enough to think of it

Re: Ronin Marui Samurai runner build
Posted: Tue May 18, 2021 1:38 pm
by silvertriple
Hello,
Lot of the samurai chassis I saw on pictures or to sell for restoration are having the same type of issues the Hunter/Galaxy on the shock tower, even though it's not made the same way: Often, the part of the chassis where the rear shocks are mounted on the sides are broken/repaired with glue: how do you intend to take care of this?
Re: Ronin Marui Samurai runner build
Posted: Tue May 18, 2021 1:47 pm
by Dadio
silvertriple wrote: ↑Tue May 18, 2021 1:38 pm
Hello,
Lot of the samurai chassis I saw on pictures or to sell for restoration are having the same type of issues the Hunter/Galaxy on the shock tower, even though it's not made the same way: Often, the part of the chassis where the rear shocks are mounted on the sides are broken/repaired with glue: how do you intend to take care of this?
The gearbox mounts break off as well , the plan is to model it as it is then do a second version to sort the problems , in all honesty if the chassis was made of nylon instead of ABS then it would probably work fine .
Re: Ronin Marui Samurai runner build
Posted: Tue May 18, 2021 2:12 pm
by silvertriple
Dadio wrote: ↑Tue May 18, 2021 1:47 pm
The gearbox mounts break off as well , the plan is to model it as it is then do a second version to sort the problems , in all honesty if the chassis was made of nylon instead of ABS then it would probably work fine .
Well, nylon might be too flexible for shock towers... But yes, it doesn't break, it bends and comes back into place (or almost). I never had a Samurai, but I believe the deport from the chassis may be a problem in all the plastics you can think about.
Re: Ronin Marui Samurai runner build
Posted: Wed May 19, 2021 4:27 pm
by Dadio
I think I'm ready for a test print tomorrow

Re: Ronin Marui Samurai runner build
Posted: Thu May 20, 2021 2:42 pm
by Dadio
First draft chassis , very rough and ready , just a few areas to work on .

A left gearbox half arrived from Shapeways , now I already have a Shapeways right side of the gearbox and it fits perfectly but unfortunately the left side does not , it's a minor fault , one hole for the gear axle for the reduction gear is wrong and there's no mesh with the centre diff gear
This is my original gearbox with the slightly yellow greasy gears next to the Shapeways part .

You can clearly see the lack of gear mesh .

The last picture it has the axle fitted in the motor plate and shows exactly how far out it is .

I messaged the designer and he got right back to me , he's evidently sold a few and only had one other person mention this fault , my guess is that most have gone on shelf queens so gear mesh was not too problematic , he asked for pictures so i sent these ones , he seems reasonable but we'll see what happens , I might be able to do something to fix it but its an arse .
Re: Ronin Marui Samurai runner build
Posted: Tue May 25, 2021 1:29 pm
by Dadio
The guy of Shapeways that drew up the gearbox model and confirmed the axle hole was misplaced , he's fixed it and looks like he's a straight up guy about sorting it out

Re: Ronin Marui Samurai runner build
Posted: Tue May 25, 2021 3:43 pm
by Dadio
He's sending a replacement part from Shapeways , was very good about it and he's replacing the model they sell , is so nice when people are decent human beings !
Re: Ronin Marui Samurai runner build
Posted: Wed May 26, 2021 3:58 pm
by Dadio
Re: Ronin Marui Samurai runner build
Posted: Wed May 26, 2021 6:36 pm
by Coelacanth
Cool...it's interesting to see those wheels in white instead of their iconic matte chrome, old-school muscle-car finish.