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Re: Bitza Mk2
So thought I'd do a quick event breakdown of how Team Bitza got on. This is probably more for our benefit and will be a load of text, but I'll put up some more build photos and vids soon.
In short the robots all performed pretty badly. Spinza never even got started on, let alone finished in time.
BitzaWood was structurally sound, and half wired up, but in our attempts to finish the job at the GSL we managed to wire the weapon motor the wrong way so it span down. Reversing the polarity broke the relay, which by this point was the one out of Bitza since I was unsure of how to wire the one I had in BitzaWood originally.
As for BitzaMk2, well we just ran out of time and it had some quite major issues to iron out. The weight being the main one, meaning we could either run was armour or weapon. Given the first fight against Cobalt armour seemed sound, and we took no damage, but I suspect Kenny held back a bit. Then DoorStop was replaced with LH, so quickly put the armour back on for the 2nd round too.
By this point it was very apparent we had a major problem, no traction. There was too much weight over the front of the robot so the wheels just span beneath us.
For the final fight we put the drum on. But a combination of an additional 3.2kgs over the front and the gyro force meant it didn't drive at all.
Pretty pleased with the drum, spins up very quickly, good RPM it was only when we drove into the wall that we sheared the bolts holding one tooth on, and then the vibration meant we slipped the chain and the drive axle worked loose. Still got a knockout though!
As for the next model, shorter and wider, with more weight over the drive axle. Thinking we may ditch the exoskeleton design. We like being different and it's very strong but difficult to work with, hard to mount anything and heavy. So we'll be looking at a base plate or bulkhead design.
Things worth keeping? The drum seemed sound, just need bigger bolts in the teeth. The car fan motor provided more than enough power to spin it up and didn't draw much current. The one way bearing worked well as did the chain. We think it slipped because it stretched so far.
Our 15a Electronize controllers got rather warm but still working so happy to keep them, same with the dewalt drive motors and gearboxes.
So thought I'd do a quick event breakdown of how Team Bitza got on. This is probably more for our benefit and will be a load of text, but I'll put up some more build photos and vids soon.
In short the robots all performed pretty badly. Spinza never even got started on, let alone finished in time.
BitzaWood was structurally sound, and half wired up, but in our attempts to finish the job at the GSL we managed to wire the weapon motor the wrong way so it span down. Reversing the polarity broke the relay, which by this point was the one out of Bitza since I was unsure of how to wire the one I had in BitzaWood originally.
As for BitzaMk2, well we just ran out of time and it had some quite major issues to iron out. The weight being the main one, meaning we could either run was armour or weapon. Given the first fight against Cobalt armour seemed sound, and we took no damage, but I suspect Kenny held back a bit. Then DoorStop was replaced with LH, so quickly put the armour back on for the 2nd round too.
By this point it was very apparent we had a major problem, no traction. There was too much weight over the front of the robot so the wheels just span beneath us.
For the final fight we put the drum on. But a combination of an additional 3.2kgs over the front and the gyro force meant it didn't drive at all.
Pretty pleased with the drum, spins up very quickly, good RPM it was only when we drove into the wall that we sheared the bolts holding one tooth on, and then the vibration meant we slipped the chain and the drive axle worked loose. Still got a knockout though!
As for the next model, shorter and wider, with more weight over the drive axle. Thinking we may ditch the exoskeleton design. We like being different and it's very strong but difficult to work with, hard to mount anything and heavy. So we'll be looking at a base plate or bulkhead design.
Things worth keeping? The drum seemed sound, just need bigger bolts in the teeth. The car fan motor provided more than enough power to spin it up and didn't draw much current. The one way bearing worked well as did the chain. We think it slipped because it stretched so far.
Our 15a Electronize controllers got rather warm but still working so happy to keep them, same with the dewalt drive motors and gearboxes.
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