pic: Version 1.1

[Arefin Bari]

Originally Posted by jimfortytwo

If I'm looking at this right, it seems that in the transition period between high gear and low gear the motor shaft is locked, because both gears are engaged at the same time. Is this actually what is desired? It seems needlessly cruel to the motor, and I would think actually makes slipping into the new mesh more difficult.

By all means lighten the gears if it is easy for you to do, but I suspect that the inertia of those disks is negligable in comparison to the momentum of the 130 pound robot, or even just the wheel attatched to this gearbox.

you are very right... it is locking.. thanks for bringing it up to my attention. umm... solutions.. there are two. one, either stop and shift. or space the gears out more. decisions will be made soon. most of the modifications will be made and will post a Version 1.2. I pointed this out in my posts before that i am going to make holes in the gear. please understand that I am a newbie to inventor, in fact i started working with inventor on thanksgiving night.

Edit - Sanddrag, if i use any steel on the transmission it will just be the shafts, because i have experienced shafts bending inside the transmission. but i do consider using steel if i have enough weights left. our 2003 transmission was first made out of aluminum. it did work ok. but then we switched to steel.