- IP Railbus
- P1010275.JPG (4.67 MiB) Viewed 5826 times
- Original gearbox
- P1010288.JPG (1.91 MiB) Viewed 5826 times
- AppleTree Motor/gearbox/mounting bracket
- image3.jpeg (47.72 KiB) Viewed 5826 times
You could use the N20 gearbox motor that I'm using in the contractors loco.
Ah! Interested However there seem to be so many permutations of gearing available. Do you have a link to your choice? I would also be interested to see an in situ photo if possible Philip.
This is the one I used, https://thepihut.com/products/dual-shaf ... -gearmotor
Of course you have - a thread I've been following avidly, if not apparently thoroughly
Usually gear ratios like this are quoted the other way round. i.e 50:1 not 1:50. 50:1 means that for every 50 turns of the motor, the output shaft rotates once. So for 100:1 for every 100 turns of the motor the output shaft turns once, so it goes at half the speed.
No wonder I'm confused Thanks Philip.philipy wrote: ↑Wed Feb 02, 2022 10:50 amUsually gear ratios like this are quoted the other way round. i.e 50:1 not 1:50. 50:1 means that for every 50 turns of the motor, the output shaft rotates once. So for 100:1 for every 100 turns of the motor the output shaft turns once, so it goes at half the speed.
Now my Chinese gearbox is quoted at 1:42 so that implies that for every single turn of the motor, the output turns 42 times, but that can't be correct, the loco would go into orbit, so we have to assume that it's Chinese writing backwards as usual!
So to answer your question, no, you need a higher ratio to get a lower speed.
I suggest you wait a little bit longer and I'll do a video of my wee beastie when its finished so you can judge for yourself.
Users browsing this forum: No registered users and 1 guest