I used some in Balsa Steel and wasn't entirely convinced, though I used a different style of hose clamp so maybe it's worth a shot. Do want something more solid for this though, if possible - I'm intending to use them as part of a structure too!

Design question time

Welcome to another installment of 'Matt has absolutely no idea what he's doing but wants to build a silly bar spinner anyway so will spam the forum with questions' or something.

Few things - it dawned on me that spinning the weapon faster would be more beneficial in terms of the stored energy in it than just simply increasing the weight - whilst I don't really want to drop the weight of the thing a lot (2.5-3kg would be the lightest I'd like) is it worth reducing it down from 4kg, and making it faster?

Truth be told I wanted a 4kg bar spinning at about 5000rpm with two massive blocks of tool steel either side of an aluminium/Gr5 ti bar a little like NST/Scissorhands use but I'm thinking that it might not have as much power as something with more speed, if that makes any sense?

Or failing that, go for monstrously high speeds, a lighter bar and a single tooth a little more towards like Electric Boogaloo's? I am more towards the 'build it and see how it works' type of philosophy but the cost to have all this lasercut and for the materials means I'd rather get it (much closer to) right first time!


And as an aside, I've been offered some bits of Stainless plate of varying thickness to make future machines out of - how would say, a 6mm welded stainless chassis hold up compared to the equivalent in Hardox in a design like HW2's? I know that Hardox loses some of its strength after being welded, which is why I ask really. Maybe it won't be as strong overall as Hardox, but in that thickness... is it really needed?

Thanks for any help too, and I really do apologise about the onslaught of questions, I need to learn to engineering better before doing something this ambitious again haha.

Cheers!