2264 dual fp lift gearbox.
 

Well, I finally got the darn thing built!









Here is a link to a video of it in action:
http://s200.photobucket.com/albums/a...t=DSCN7925.flv

It could use some grease but it works. :)

thanks, Vivek

Re: 2264 dual fp lift gearbox.
 

Very nice guys, great design and a great machining job.

Re: 2264 dual fp lift gearbox.
 

How did you make those linear (but curved) slides? It looks kind of like a garage door guide with rollers in it. Looks cool!

Re: 2264 dual fp lift gearbox.
 

FP motors really belt out the Wo when you let them run in their happy-RPM-zone. Great Design!

We used a pair of FP's to run our speedy arm up and down this year.

-q

Re: 2264 dual fp lift gearbox.
 

Cool. Does it actually toss the ball or just lift it up?



We used 2 CIMs in our lift. 11 feet in 2 seconds is scary :ahh:

Re: 2264 dual fp lift gearbox.
 

Wow, that is an impressive bit of design and execution. I was thinking about getting the new members to design something like that for the coming year, and after seeing the effectiveness of this one... thats a definite.

One question though; have you had any issues yet with the shaft collars at the top basically acting as plate spacers, or have they behaved themselves?

Re: 2264 dual fp lift gearbox.
 

The sides are garage rail. They were donated to the team and were quite effective.

Thanks, The side plates were waterjet (the bearing holes were put in manually) and the gears were from AM. I did spend a couple of months designing this thing. If we were to pull this off during build season, the process would have to be expedited tenfold for it to be done on time. It was a really good learning experience though.

thanks, Vivek

Re: 2264 dual fp lift gearbox.
 

Actually, there are 5 other standoffs spaced around the gearbox. Those were just to hold the idler sprockets in place.

thanks, Vivek

Re: 2264 dual fp lift gearbox.
 

so pretty... alright, im jealous.

Hey, I recognize that drive...

Re: 2264 dual fp lift gearbox.
 

From what it sounds like/looks like you machined out the holes for the bearings and used a couple that didn't have flanges on them.

Our team for numerous years...just so you know for an option, has waterjetted out plates and just reamed out the holes, even the bearing holes and it's always been fine, we've never had a gearbox fail.

Also, flanged bearings everyhwere can really make something easier to assemble, and to dissasemble.

Just some thoughts that might be helpful later.
It looks like a really nice design, very good drawing, and just a plain pretty piece. :)

Re: 2264 dual fp lift gearbox.
 

So what did the robot look like? Was there a different upper structure or just a different way to launch the ball?

Re: 2264 dual fp lift gearbox.
 

The robot looked the exact same. They were having trouble with their lift and decided to swap out the gearbox. The also changed their drive system from 5 omni wheels to a more traditional 2 wheel-2 omni drive.

Re: 2264 dual fp lift gearbox.
 

yeah, we had 3 CIM's on the base and 1 CIM on our lift. We swapped the lift CIM out for the fps with the new gearbox. We now have a tank drive with 2 CIM's per side. Much better torque. The CIM's don't get as warm anymore :D.

I'm serious, we could cook hotdogs on them before.

-Vivek

Re: 2264 dual fp lift gearbox.
 

is that 3/8" aluminum plate on the gearbox? or something close? It looks really thick. What was the purpous for using that particular thickness rather than 1/4" (assuming that its not 1/4")

great cading, looks great

Re: 2264 dual fp lift gearbox.
 

It actually is 1/4. All of my pics are zoomed in a lot with high res so that might make it look thicker.

-Vivek