Back for more..VEXpro 2014 Product Unveiling

[Aren_Hill]

Originally Posted by Nemo

I've been playing around with VersaPlanetary CAD models today, and it has been a learning experience. They're really neat little boxes.

What holds a ring gear add-on stage to the new dual input gearbox? The STEP model shows a couple of 10-32 screws sticking out, but there is no threaded 10-32 hole to go into on the ring gear stage. The 10-32 screw would seem to go into the the cutout corners of the ring gear block. Does the ring gear's shoulder press fit into the plastic housing of the dual input?

This picture shows the 10-32 screws sticking out and not connecting to the ring gear. What have I missed?

Hey Dan,

The casing has a pin in it as well, to lock the ring gear stage from rotating.
This coupled with the 10-32's screwing into the output stage, and the ring piloting, hold the gearbox solidly together.

-Aren

[Nemo]

Originally Posted by Aren_Hill

Hey Dan,

The casing has a pin in it as well, to lock the ring gear stage from rotating.
This coupled with the 10-32's screwing into the output stage, and the ring piloting, hold the gearbox solidly together.

-Aren

Ah. The 10-32 screws go past the ring gear and into the output block. I had myself subconsciously convinced that those were unavailable since those holes are also in use from the other size to mount the gearbox. Thanks.

[Aren_Hill]

The face holes are deep enough we're using them as dual purpose.

-Aren

[ttldomination]

I notice that the Traction Wheels are now available with tread.

Can you guys provide us some details about this tread (COF, etc.). I would also be interested to know why the tread was pulled last year and how this new tread fixes those issues...?

- SUnny G.

[Paul Copioli]

Originally Posted by ttldomination

I notice that the Traction Wheels are now available with tread.

Can you guys provide us some details about this tread (COF, etc.). I would also be interested to know why the tread was pulled last year and how this new tread fixes those issues...?

- SUnny G.

The traction tires are 1/2" wide sections of the same rubber used on the VersaWheel DT only slightly softer. CoF with the FRC carpet will be put up on the website in the next few days, but it is similar to Colson Wheels.

The tread was pulled last year because it did not perform to our expectations. While the tires looked great and had very high CoF with the FRC carpet, the rubber was too soft and would peel off of the wheel during turning. Our main goal was to not have to use any sort of fastener to hold this tire on the wheel so after several attempts to fix the problem we decided to scrap the entire design.

This year's tread has an injection molded plastic support ring inside the rubber material to eliminate the possibility of peeling. This tire has great traction and allows you the flexibility to make pretty much any wheel width you want.

Paul

[Ricky Q.]

We've put together this collection of bloopers from the VEXpro Product Unveiling Video:

http://www.youtube.com/watch?v=cub5oruWA7k

Enjoy!

[DampRobot]

Could someone comment on how much torque the belts components can take? I'm thinking of two applications in particular.

First, if I want to do a WCD with 4" (or even 6") wheels, what is the right toothcount pulley to use, given that I want a reasonable factor of safety? Let's just say that I want to be able to have the robot traction limited (instead of ratcheting limited) when it's reared up on two wheels.

Second, if I use a 60T pulley and a 15mm wide belt, could I use it to raise an arm? What about the shock loads that the arm would see when it changed directions? Would the belt ratchet under those conditions? What if I wanted to raise the robot up on the arm, a'la 1538?

Generally, could you publish some kind of torque ratings for these components?

[magnets]

Originally Posted by Ricky Q.

We've put together this collection of bloopers from the VEXpro Product Unveiling Video:

http://www.youtube.com/watch?v=cub5oruWA7k

Enjoy!

These are awesome!
"Is that soup port?"
"no, support, my bad."

[MichaelBick]

Would you mind posting CAD of the 18T sprockets please

[Ricky Q.]

Originally Posted by MichaelBick

Would you mind posting CAD of the 18T sprockets please

Sorry for the delay, that CAD is now posted on the #25 Sprockets page.

Here's a link:

http://content.vexrobotics.com/cad/S...-3488-STEP.zip

Best,
Ricky

[Gary Dillard]

Components for the Versachassis show that the frame won't be shipped until January 10th, and the motion components until January 15th.

http://www.vexrobotics.com/vexpro/st...sachassis.html

What's up? Is this another Talon fiasco where I won't be able to get spare parts until April? I was pretty excited to add this option to our playlist, doesn't really look like a good choice now.

[ksafin]

Originally Posted by Gary Dillard

Components for the Versachassis show that the frame won't be shipped until January 10th, and the motion components until January 15th.

http://www.vexrobotics.com/vexpro/st...sachassis.html

What's up? Is this another Talon fiasco where I won't be able to get spare parts until April? I was pretty excited to add this option to our playlist, doesn't really look like a good choice now.

Likewise.

[Ricky Q.]

Originally Posted by Gary Dillard

Components for the Versachassis show that the frame won't be shipped until January 10th, and the motion components until January 15th.

http://www.vexrobotics.com/vexpro/st...sachassis.html

What's up? Is this another Talon fiasco where I won't be able to get spare parts until April? I was pretty excited to add this option to our playlist, doesn't really look like a good choice now.

We're working through a shipping issue on the frame components right now. They are shipping from our supplier tomorrow and January 10th is a worst-case shipping date from our warehouse.

The motion components have had a January 15th ship date since the product announcement. We're doing all we can to ship them sooner and will get them our ASAP.

We want this stuff in your guys' hands as badly as you do. Thanks for your patience and we apologize for any inconvenience.

Best,
Ricky

[Scoyle]

What is the difference other than price between the 3' 1/2" Hex Stock (217-2753) $11.99 and VersaChassis Hex Shaft (217-3437) other than the price ($9.99)?

[Aren_Hill]

Originally Posted by Scoyle

What is the difference other than price between the 3' 1/2" Hex Stock (217-2753) $11.99 and VersaChassis Hex Shaft (217-3437) other than the price ($9.99)?

The VersaChassis HEX shaft is a ready made axle for the VersaChassis system.
If you have lathe capabilities it will be more cost effective to buy the Hex stock. But basic axle functionality is present with just the VersaChassis Hex shaft (snap ring groove, encoder hole, tapped shaft end).

Hope this helps,

-Aren