Hello Everybody! I had a quick question for everyone who reads this. I was wondering whether or not omni/holonomic drives are going to be useful. I can’t decide whether or not to go with one.

[image] tmwilliamlin168: But don’t you require extra motors/pneumatics to lock the two motors driving the planetary gear so that you get full torque? It seems to work fine as is…Will have to investigate that

[image] NattyMan0007: It seems to work fine as is…Will have to investigate that [image] Planetary transmission: can this really provide the torque of 2 motors? VEX V5 General Discussion Techni…

@Foster Can you tell us more about your planetary transmissions? Size, ratios, can they stack, etc, @NattyMan0007 Outer gear is a HS 60 tooth, inner gear is a HS 36 tooth surrounded by 4 12 tooth HS gears driven by 6 tooth sprockets. We spent part of the day talking about this design: https://ve…

[image] Foster: Can you post a picture of your setup? Sure. Sorry about late reply. Timezones [image] [image]

[image] NattyMan0007: Sure. Sorry about late reply. Timezones http://i.imgur.com/Ubex4VV.jpg http://i.imgur.com/J8RtiCT.jpg Dang, thats a work of art, haha!

[image] NattyMan0007: Sure. Sorry about late reply. Timezones http://i.imgur.com/Ubex4VV.jpg http://i.imgur.com/J8RtiCT.jpg [image] Planetary transmission: can this really provide the torque of 2 motors? VEX V5 General Discussion …

Murfy: Dang, thats a work of art, haha! Thanks [image] tmwilliamlin168: Above still applies. So in order to get torque ratio I must lock the larger gear in place? It does work, however I don’t think it is a reduction from looking at a wheel placed on the output shaft. But rather jus…

[image] NattyMan0007: So in order to get torque ratio I must lock the larger gear in place? It does work, however I don’t think it is a reduction from looking at a wheel placed on the output shaft. But rather just direct drive I don’t know if it only applies to the torque ratio. Because the …

Thanks for posting, you made the last mins of our summer camp, 6 teams 20 roboteers. Lots of good ideas and September is looking like lots of fun.

[image] tmwilliamlin168: I don’t know if it only applies to the torque ratio. Because the motors are powering different parts of the planetary gear, one motor will receive more load than the other, and you end up only getting the torque of one motor. Hmm, I will dig up a video of it being dri…

Is Omni/Holonomic Necessary?

VEX V5 General Discussion General Forum

tmwilliamlin168 July 15, 2016, 3:51pm 13

Above still applies.