I thought you’ve seen Greenegg’s gearbox on YouTube.
I’d like to have a gearbox on lifting.
While we held a skyrise section, we switched into 1:7 mode.
While we are holding cubes, which are heavier, we switched into 1:35 mode.
What do you think then?:(:(:(
Okay so for clarification lets use the word transmission rather than gear box.
So green egg as well as many other teams have designed transmissions to switch gear ratios depending on the situation.
Traditionally it is far easier to design a ratio that swaps b:a a:b. This is because of the distances between the gears needing to be identical in both modes.
A ratio of 3:3 could also be swapped with 1:5 to achieve what you are looking for. Be fair warned that compound gearing
1:7
1:5
To make 1:35 will have a very large amount of friction and put a great deal of stress on the axle. (HS axles would probably be useful here).
Several videos exist showing the mechanics involved in shifting gears. There will be no difference in terms of the shifting between an arm transmission and a drive one.
1:35 is going to be a very slow lift unless you are aiming for 5+ cubes.
Also at that ratio (I am guessing 4 motors on your lift system) the torque is going to be high and you’ll almost certainly end up breaking something.
Definitely a good engineering challenge but the sad faces in your post probably sum up the results already!