Vex Standoff Axle Tutorial

Just a quick tutorial on how to make standoff Axles. This is just the way I do things, and I've found this works great. Keep in mind this is just a simple example, and I know there are plenty of other methods that work too.

[@brendan2098]

It's all over my screen once I heard Evan speak

[@oddball119]

Dude what

[@PSTLWRLDS]

brother what

[@kwibblesxxa23]

time to make my robot 50% standoff

[@bertenheimer]

Just don’t use this for any particularly high stress applications and it’ll definitely be good

[@9MotorGang]

It bends less than a regular LS shaft but more than a HS shaft

[@7701XformerlyTwitter]

Very epic Evan content as usual

[@zeboi621]

you can use a brass insert and a lock nut at the bearing to have less slop and also better friction

[@9MotorGang]

@@zeboi621 By having a locknut you would stop the axle from rotating.

[@zeboi621]

@@9MotorGang the lock nut is tightened to a standoff not the insert so the insert can freespin and the locknut isnt tight against the bearing/pillow block

[@VRC3118A]

I would be terrified to use this in a two-directional use case. That gear is just waiting to unscrew the whole assembly apart in the wrong context or given enough time.
Could see this being used for one-directional low momentum mechanism though, some kind of cata maybe?

[@9MotorGang]

@@VRC3118A Only ever used it on an intake so you would probably want to do more testing for other items. I imagine coating the screws with loctite would help. We just made sure to tighten it before every match cause after maybe 30 minutes of running the intake it would start to come loose.

[@VRC3118A]

@@9MotorGang that’s horrible😂 I can imagine arranging these in a way that makes the gear tighten the assembly between it and the output but I guess you’d still have to tighten the ends a lot.
Another concern I have is the gear slipping relative to the standoff in high-torque applications. This assembly looks a lot like Ryan 4253’s gear thinning setup, which I used last year on the lathe but the gear can start spinning relative to the screw if the tool catches a ledge (even though the lathe tightens the assembly down a lot). Not sure what the threshold for that would be since it’s hard to produce lathe-level torque in vex but once those skid marks form it’ll definitely become a recurring problem.
Genuinely love these niche and strange solutions, though! I’ve done a lot of janky but effective stuff too…

[@VSPuzzler]

What is the weight comparison with this and a ls axle

[@9MotorGang]

@@VSPuzzler This is slightly heavier than a LS axle but much lighter than a HS axle.

[@LucasWheeler-xc1kp]

Very interesting

[@VillagerSK1]

Niche, but definitely useful

[@austindirr8784]

Why not use a shorter stand-off for the bearing section so that spacers and a Keps nut could be used similar to in a screw joint setup?

[@austindirr8784]

Note*** - A big washer would be placed before the nut

[@9MotorGang]

By mounting the standoff axle to a firm point, it can no longer rotate.

[@austindirr8784]

Oh that just clicked. Thanks

[@lucaszhang8226]

just putting it out there you are able to buy 24 inch hight strength shaft and dremel it down to the size you need.(edit : sorry i didnt watch the video far enough XD)

[@hemavundela1188]

Goated

[@madisoglrobotics]

that’s tuff

[@ultramelon723]

Here before avi

[@HippityhoppityGnW]

Same bro

[@Vex_Shinanagans]

I used this for hooks

[@sethm8220]

seems like a pretty thin use case

[@9MotorGang]

Yah. I don’t know when I’ll use it again but it’s an interesting technique I thought others would want to know about. Always good to have more options.

[@sethm8220]

@@9MotorGang yeah sick concept, one question is why not use gold inserts in the pillow bearing for tighter tolerance?

[@9MotorGang]

@@sethm8220 Not something I'd thought of. Might work, might not.

[@piplup7575]

erm what the sigma

[@9MotorGang]

@@piplup7575 on skibidi.

[@PendletonJack]

zest fest

[@truettweber]

or you could just use a high strength axel

[@HippityhoppityGnW]

Fax

[@9MotorGang]

Extra weight and friction is an L.

[@HippityhoppityGnW]

@@9MotorGang but it doesnt bend as much

[@9MotorGang]

@@HippityhoppityGnW So each has their uses.

[@7701XformerlyTwitter]

@@9MotorGangu can worry about weight once you have more than 1 full length cross brace

[@ultramelon723]

First

[@zantle9056]

this sucks wtf

[@9MotorGang]

Cope seethe cry about it get good win anyways skill issue stay mad don’t care didn’t ask L ratio.

[@17771Defenestration]

Someone cooked here, I can smell it.