What I did to make the treadle more stiff is I put some rubber grommets in between the inside of treadle and hinges on bottom enclosure that gave it a nice wiggle free action that is stiff enough.
To try that you will need to press the axle out again and find some suitable rubber grommets or bit of hose that sits snuggly on axle.
Tightening those screws won't make a difference I would think.
To try that you will need to press the axle out again and find some suitable rubber grommets or bit of hose that sits snuggly on axle.
Tightening those screws won't make a difference I would think.