Deathly Hallows - FW - Alligrater

[Deathly Hallows]

Disaster!

Still throwing the chain. I am getting desperate now.
The chain is so tight I struggle to fit it, yet once on it flexes enough to derail.
Clearly after testing on the stand and it worked, then simply fitting everything else back in and failing meanwhile too sensitive for combat. One knock and it would fail.

I think the only thing I can try now is to move the motors them selves.
Fit the chain and then bolt in the motors so there is no give at all.
With a job it's hard to imagine I can achieve this plus the open topics in time for the weekend now. Grantham is looking doubtful

[Roboteernat]

did you calculate the correct centre spacing for the axles when choosing chain length? The best method would be to fit the chain then the motors down.
not the one im looking for but this will help:
http://www.botlanta.org/converters/d.../sprocket.html

[Deathly Hallows]

did you calculate the correct centre spacing for the axles when choosing chain length? The best method would be to fit the chain then the motors down.
not the one im looking for but this will help:
http://www.botlanta.org/converters/d.../sprocket.html

Thanks for the input. I am such an amateur, I'd originally considered having the drives mounted so they could slide back and forth to take up tension before fixing and this would have been a lot better.

Trying to continue now at this stage is more effort, but I will try.

I tested all the electrics again and it's all good. Still need to build the ramp have around 600g left for that which seems short but we will see.