Ofsted/my friendly uncle/I don't know

[Rapidrory]

No don't heat it! :L Heating polycarbonate makes the folding easier, but it's much more brittle when it cools. 1 - 1.5mm polycarb cold folds fine, 2mm is a bit of a pain and can require some heating to get it to do tight bends.

1mm should be ok, but you might want to add right angle bends along long edges to help stiffen it, as it's quite flexible.

[Occashokka]

How sharp can you get the bends?

[Rapidrory]

I generally avoid more than 90 degrees, but should be fine 135 degrees if need be

[Occashokka]

Because I wasn't expecting to go I'm now bodging together exuberant with whatever I got, so a shallow aluminum wedge begins, nothing big nothing strong but hopefully something drivable for Oxford event other than an underperforming bulldozer scoop and a slightly glitchy spinner

[Occashokka]

I've seen Rory with a 50g blade and I've heard numerous threats of 6inchers but I thought, hey what if I look at the biggest motor possible, and to which I found a 39g 4200kv 22a mega motor, to which I thought wow what if you stuck a thin 6inch bar on that? Done the maths and realized it's illegal as it will be able to do 800mph and will break the speed of sound and cause a sonic boom which is illegal unless you receive special permissions. If anyone has designed a faster spinner please do tell

[mole55]

It won't break the sound barrier. The drag goes up exponentially as you approach the speed of sound. Unless you start designing the bar to reduce transonic drag, which will be nigh-on impossible without an aerodynamics degree, you'll max out at 550-600 mph tip speed tops.

[Occashokka]

Degree level aerodynamics here I come nah I'm going to design it so it could max at 680 but make it drag/downforce heavy so it only does like half that and doesn't fly

[Occashokka]

Pre-AWS update:

Babymetal: very slight chamfering of the back so it can be tilted further before beached and I have replaced the old scoop with a new hinged one which can also fall to the floor when upside down, will try and post a picture when it's finished

Exuberant:In order to fix an issue I ripped the whole electronics out the chassis and reconfigured it so it's now a firestorm style flipper, but 2 pieces of metal with 2 different hinges, who knows how it'll perform but it's temporary and a bit more interesting

Buffy: haven't changed anything but I've found out how to make it turn on properly every time and we are still trying to engineer some sort of motor protection that weighs 2g or less.Possibly sponge

Sorry for randomly long post :p

[Occashokka]

How easy is it to add a second servo? Do you just solder both directly onto the pins?

[Occashokka]

So I'm probably ditching the plan that need 2 servos (a elastic flipper) but for the new Buffy I need to know where I could source 1mm x ~400mm x 16mm of hardox, nothing at all suspicious about needing 16inches of spinner blade material, right?