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hopping up a vintage grasshopper 12 years 5 months ago #4399

what a great service from Mitroniks. posted my faulty ESC back to them friday afternoon. got a brand new one in the post today. top service :cheer: :cheer:
the Hopper is alive again

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hopping up a vintage grasshopper 12 years 5 months ago #4400

Let's give it up Mitroniks! Great service. :cheer:

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hopping up a vintage grasshopper 12 years 5 months ago #4607

well i think my hop ups on the front end of the hopper has vastly improved the handling and front end stability. along with the rear end hornet upgrade it sure goes better in a straight line at speed and definately handles better around the twisties and jumps. i hope to get a vid up tomorrow of the hopper down the quarry tommorow if the weather holds up

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hopping up a vintage grasshopper 12 years 5 months ago #4615

well today was a wash out, torrential rain and gale force winds so the quarry run was cancelled. repainted the headlights and went food shopping instead lol :blush:

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hopping up a vintage grasshopper 12 years 5 months ago #4617

Hope the weather turns around. Would love to see that Hopper ripping it up in the quarry! :woohoo:

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hopping up a vintage grasshopper 12 years 5 months ago #4621

well today was a wash out, torrential rain and gale force winds so the quarry run was cancelled. repainted the headlights and went food shopping instead lol :blush:


What you need is a big muff to put your hands in to keep warm.


TBH I'm not sure it would help in really bad conditions, I just like the word "muff" :D






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hopping up a vintage grasshopper 12 years 5 months ago #4623

well today was a wash out, torrential rain and gale force winds so the quarry run was cancelled. repainted the headlights and went food shopping instead lol :blush:


What you need is a big muff to put your hands in to keep warm.


TBH I'm not sure it would help in really bad conditions, I just like the word "muff" :D






haha, it might keep my hands warm but they will still be stuck in a wet muff :sick:

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hopping up a vintage grasshopper 12 years 5 months ago #4668

:silly: :whistle:

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hopping up a vintage grasshopper 12 years 5 months ago #4710

i decided to dig out the old hornet body i had and paint it up as a spare or "alternative" to the hopper body. it need some tlc, a few cracks here and there and one of the holes in the spoiler is shot, but all repairable.
i have managed to easily remove all the stickers but my next dilemma is where do i go from here?
the body is painted on the inside but i am planning on spraying it so shouldnt be a problem, how to clean it properly, to mask the windows or spray them blacked out!? or use proper car window tint, including adding a front screen as well and leaving out the driver?
what is best to repair/reinforce the cracks and holes and do i need to use proper tamiya primer and paint or will auto paint do the job?
lots of questions but i need sommat to do that is cheap and keeps me occupied.
here are a couple of pics

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hopping up a vintage grasshopper 12 years 5 months ago #4712

AFAIK there's no real way of repairing splits in polycarbonate - the best you can hope for is to stop them getting worse by drilling/melting a small hole at the far end of the crack, reinforcing on the inside with reinforced aluminium tape & on the outside with a sticker.

Holes - the same idea really - use a bit of scrap lexan as infill the same size/shape as the hole, tape on the inside & sticker on the outside ... obviously you need to do this after any paintwork.

Paints - auto paint simply won't stick, and polycarbonate paints are meant to go on the inside, where the satin finish and/or brush marks don't show ... Tamiya PS sprays stick well and are dense, but have the usual satin finish, Tamiya PC paints will always leave brush marks, Faskolor brush/airbrush paints are very translucent (even the ones that are meant to be solid) ... Humbrol acrylic "Hobby Spray" is meant to stick to lexan - but I've found the results to be very variable - black & white are ok, midnight blue & orange fall off if you so much as fart in its general direction. It's also satin - even the ones that are meant to be gloss :blink:

In general then, lexan does need to go on from the inside, but that means you have to get the old stuff off. Thinners/Brake fluid will get it off, but will cloud & embrittle the polycarbonate, De-Solv-It Grafitti remover is _meant_ to be polycarbonate safe, but I've never tried it on lexan & there's a world of difference between quickly wiping off where some toerag has tagged your perspex-like shed window with auto paint, and getting off bonded on polycarbonate paint on the inside of a thin shell ... not sure I'd recommend it until I've seen someone else do it ;)

Something you might not have considered, because it's counter-intuitive, is that you _can_ sand the inside of polycarbonate shells and still get a good result - because the paint will fill in the scratches & it's the top/outer surface that provides the shine anyway.

I remember trying this in the early 80's when Tamiya PC paint was the _only_ option for lexan shells - in the hope that "keying" the surface would make it stick better ... it didn't but the finish was as glossy as ever.


TBH that shell doesn't look too bad - If it were mine, I'd be inclined to reinforce the splits, polish up the outside & put some new stickers on it - perhaps some different colour stripes in self adhesive vinyl sheet?

:)

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