Ri3d Gearbox

[Jacob Paikoff]

Dan,
What's the difference between the Modulox Shifter Shaft and the Long SS Hex Shaft that AndyMark currently sells?
Just from looking at the CAD of the gearbox the two looked more or less interchangeable.

[Dan Richardson]

Originally Posted by Jacob Paikoff

Dan,
What's the difference between the Modulox Shifter Shaft and the Long SS Hex Shaft that AndyMark currently sells?
Just from looking at the CAD of the gearbox the two looked more or less interchangeable.

I may need to do a deeper dive but I believe the major difference is that the the Long SS Hex Shaft is missing the bore and slot to shift the dog. I believe in the AM shifters these features are incorporated in a cluster shaft.

[TheKeeg]

We are currently designing a winch system to draw back and release our catapult and I am intrigued by the lunchbox. A few questions about your Ri3D robot...how many pounds of force did it take to draw the catapult back? We need about 50-75 lbs or force at about 22 inches from the catapult's pivot point and I am curious as to how well this transmission will perform. We started designing for a WCP 2 speed transmission but later determined that it was not the best one to use.

Thanks, Keegan

[Dan Richardson]

Originally Posted by Dan Richardson

I may need to do a deeper dive but I believe the major difference is that the the Long SS Hex Shaft is missing the bore and slot to shift the dog. I believe in the AM shifters these features are incorporated in a cluster shaft.

I apologize, I was incorrect. The only difference that I can tell is that the hex portion, and the 3/8" round version of ours are slightly longer. If it were just the hex it would be interchangeable but the 3/8" in the Long SS Hex Shaft round would fall short of the bearing.

[Jacob Paikoff]

Originally Posted by Dan Richardson

I apologize, I was incorrect. The only difference that I can tell is that the hex portion, and the 3/8" round version of ours are slightly longer. If it were just the hex it would be interchangeable but the 3/8" in the Long SS Hex Shaft round would fall short of the bearing.

Thanks Dan, I'm glad you cleared that up.

[Cash4587]

Is there an updated BOM for with the other link that was "tbd"?

[Dan Richardson]

Originally Posted by Cash4587

Is there an updated BOM for with the other link that was "tbd"?

Looks like its the site has the shaft as part number AM-2777 and they have a kit listed under AM-2774.

It doesn't look like there is an order page for the shaft. If you're trying to place an order maybe you can call and have them add the shaft to it.

[arun4444]

Here is the shaft

http://www.andymark.com/product-p/am-2770.htm

[rwkling1]

Thank you, but it's a little late now