BrettMavriK
Member
K, my brain is starting to smoke.
I've been trying to calculate numbers for my homemade intermediate jackshaft
plans, so I can purchase the sprockets. I know gear reduction is needed, but how much for these motors? 4:1? 3:1? 6:1?
And I know I'm not calculating it correctly. (wish I knew the formula)
I know the motor has a 10 tooth on it, and I'm using a Sturmey Archer 3 Speed Hub on the 20" Stingray rear wheel.... it's just the in between gears on the jack shaft I'm having trouble with.
I was thinking of the first sprocket from the motor on the jackshaft would be an 18t. Then from there, I get lost and don't know if I should be going down in reduction or up in multiplication.
Anyone have a good equation to figure this out???
Thanks in advance,
'BrettMavriK
I've been trying to calculate numbers for my homemade intermediate jackshaft
plans, so I can purchase the sprockets. I know gear reduction is needed, but how much for these motors? 4:1? 3:1? 6:1?
And I know I'm not calculating it correctly. (wish I knew the formula)
I know the motor has a 10 tooth on it, and I'm using a Sturmey Archer 3 Speed Hub on the 20" Stingray rear wheel.... it's just the in between gears on the jack shaft I'm having trouble with.
I was thinking of the first sprocket from the motor on the jackshaft would be an 18t. Then from there, I get lost and don't know if I should be going down in reduction or up in multiplication.
Anyone have a good equation to figure this out???
Thanks in advance,
'BrettMavriK