Mecanum on kop chassis

[dradel]

Was wondering if anyone has ever done a mecanum drive on the andymark kop chassis?

Seems like this year is a mecanum year, and I'm sure there are a bunch of teams that didn't opt out of the chassis this year, but would want to use mecanums.

[ehochstein]

http://www.andymark.com/product-p/am-14u-mk.htm

Appears to be out of stock though

[Savotage]

Have you checked VEXpro, they might be plastic but they are cheaper and in stock.

I'll likely buy them because I feel that they'll suit our needs.

[TerryS]

Last year's AM14U mecanum upgrade kit will not work on this year's AM14U2 without modification to the inner plate. You would have to drill your own mounting holes for the Toughbox Nano gearboxes and cut away part of the flanges to make clearance for the gearboxes and wheels. On the Andy Mark You Tube channel Andy says that both 4" and 6" upgrade kits will be available soon, couple days for the 4" and maybe next week for the 6".
https://www.youtube.com/watch?v=7Bum0ImD46k

I like to hear what teams that used the upgrade kit on last year's chassis thought about its performance.

[tolefanjh]

Has anyone adapted an mecanum upgrade from last year to the new KOP Chassis? I assume many teams, like us, tried to be proactive on getting parts this year and purchased the mecanum upgrade only to find that it doesn't fit this years frame.

Just wondering before we start making cuts in a frame that could cost a significant amount of money to replace.

Chris.

[Whippet]

Originally Posted by TerryS

I like to hear what teams that used the upgrade kit on last year's chassis thought about its performance.

We thought it was fantastic! Super easy to set up, we had it driving and correctly running a gyro within a couple of days. We had multiple weeks with which to practice with it as mechanisms were being built. We would definitely buy it again.

[skottmorris]

I could not find any info on the AM site about which configurations of the AM14U2 will support mecanum wheels; long, wide, square? Does anyone have info on this?

Also, what size are people considering? 4 inch or 6 inch wheels?

[tomy]

This is what my team is planning on doing. We are looking into a better way of supporting the motor.

[Whippet]

Originally Posted by tomy

This is what my team is planning on doing. We are looking into a better way of supporting the motor.

...

That CAD model is of last year's KOP chassis, the AM14U. This year's AM14U2's inner plate has flanges that will prevent you from mounting your wheel like that. If this is what you had intended, that is fine. If not, you will need to consider removing parts of the flanges.

[Mike Marandola]

Originally Posted by tomy

This is what my team is planning on doing. We are looking into a better way of supporting the motor.

You might not have included it in the model but you need to make sure you brace those gearboxes in another spot. One way would be two pieces of churro spanning from one gearbox to the other like it shows for the standard kit chassis.

[cgmv123]

The side plates have the required holes to have the 4 gearboxes required for mecanum.

AndyMark made this upgrade package last year. I doubt it's going back into stock again, but I'd expect a similar package to be available soon.

[ehochstein]

Originally Posted by cgmv123

The side plates have the required holes to have the 4 gearboxes required for mecanum.

AndyMark made this upgrade package last year. I doubt it's going back into stock again, but I'd expect a similar package to be available soon.

I believe everything from last year is compatible again this year, the hole pattern on the chassis is the same.

[Peyton Yeung]

The easiest way I can think to adding mecanum to the AM14U2 is to mount cimple boxes(am-0734) to the top of the inside rails and running either chain or belts to the wheels.

[s_forbes]

We have toughbox nanos coming in the mail, and we'll be drilling some new holes in the chassis to mount them. They're great little gearboxes, it's too bad there isn't a bolt pattern on the KOP chassis to line up with them like there was last year.

The new chassis isn't as tall as the old one, so it looks like we'll probably need some additional holes in both the chassis and gearbox to mount them securely. Measure twice (or three or four times...) and drill once.

[TerryS]

Originally Posted by s_forbes

We have toughbox nanos coming in the mail, and we'll be drilling some new holes in the chassis to mount them. They're great little gearboxes, it's too bad there isn't a bolt pattern on the KOP chassis to line up with them like there was last year.

The new chassis isn't as tall as the old one, so it looks like we'll probably need some additional holes in both the chassis and gearbox to mount them securely. Measure twice (or three or four times...) and drill once.

You're also going to have to cut away part of the top and bottom flanges on the inner plate to get the toughbox nanos to fit in this year's chassis. If you place the nano output shaft through the big hole above 3/8" bolt holes you're also lowering the frame by almost 1/2" which may affect your ability to drive over the scoring platform.