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Dr.Gusta 28-03-2014 23:37

Re: pic: Next Revision
 
Quote:

Originally Posted by sanddrag (Post 1366175)
What's your source and spec on the bevel gears?

I got them from here (http://www.qtcgears.com/KHK/newgears/KHK228_2.html) the CIM bevel gears are a bored out and key way broached "Pinion Shaft" as called on the website and the larger bevel gear is drilled out and broached to a 1/2" hex, so some modification will be needed but nothing beyond the range of a FIRST team with decent manufacturing capabilities.

Rauhul Varma 29-03-2014 00:46

Re: pic: Next Revision
 
Quote:

Originally Posted by wasayanwer97 (Post 1366107)
Your construction technique is similar to 192's gearbox from 2012, but you currently don't have any hard connections. If you look at theirs (though I'm no expert on it, I've just seen pictures) they still have some bolted connections.

The plates on our 2012 drive gearbox were all press fit together, however we did have 2 bolts running through the gearbox to clamp it shut incase the presses ever came loose.

Quote:

Originally Posted by wasayanwer97 (Post 1366145)
I don't know if OP will be coming, but I'd sure love to see one of your 2012 gearboxes. It's one of the coolest gearboxes I've ever seen.

I've run into a myriad of different issues while attempting to design my own worm drive, so seeing how you guys were able to accomplish it would be amazing!

I’ll be bringing our 2012, 2013 and 2014 gearboxes to SVR :)

If you need any help with your worm drive gearbox I’m sure Joey Milia would love to help.

wasayanwer97 29-03-2014 01:48

Re: pic: Next Revision
 
Quote:

Originally Posted by Rauhul Varma (Post 1366195)
I’ll be bringing our 2012, 2013 and 2014 gearboxes to SVR :)

If you need any help with your worm drive gearbox I’m sure Joey Milia would love to help.

That's so awesome! Thank you so much!
Can't wait to stop by 192's pit. :D

Dr.Gusta 29-03-2014 03:29

Re: pic: Next Revision
 
Okay here comes V3, some of the bearing holes became overly sized for some reason and they will be an easy fix but I want to go to bed lol. I also need to add a 3:1 third stage to correct the ratios because as of right now they are way too high. It also now mounts to the KOP frame through 4 tapped holes on the face that line up with the toughbox mounting holes. Let me know what you think.

STEP: https://drive.google.com/file/d/0B7j...it?usp=sharing

Picture: https://drive.google.com/file/d/0B7j...it?usp=sharing


wasayanwer97 29-03-2014 13:32

Re: pic: Next Revision
 
V3 is looking good!

A few things though:
1. To make facemounting easier, I would go one of a few routes: Put the four bolts holding it together in through the back and tap the front plate (this would give you a flush, flat front) or I would use countersunk bolts on the front instead. The other option is to just have holes for the bolt heads to fit through on the spot you're mounting this. Generally, your mount will be a lot more snug and reliable if the face is right up against the surface you are mounting it to.

2. You probably already know this, but just to remind you, you're going to need another spot for a bearing on the front plate if you intend to add a third stage.

This is a beautiful, elegant gear box. Awesome job on it!

kghaemi96 29-03-2014 14:14

Re: pic: Next Revision
 
Quote:

Originally Posted by lonnie lascelle (Post 1366118)
Is it possible to put both motors on one side so that you can reduce the overall width? Make one motor horiz and the other under it on an angle - same site.:cool:

I agree with what you're saying. this is an awesome gearbox, but it would take up a lot of space.

Dr.Gusta 29-03-2014 15:49

Re: pic: Next Revision
 
Quote:

Originally Posted by wasayanwer97 (Post 1366281)
V3 is looking good!

A few things though:
1. To make facemounting easier, I would go one of a few routes: Put the four bolts holding it together in through the back and tap the front plate (this would give you a flush, flat front) or I would use countersunk bolts on the front instead. The other option is to just have holes for the bolt heads to fit through on the spot you're mounting this. Generally, your mount will be a lot more snug and reliable if the face is right up against the surface you are mounting it to.

2. You probably already know this, but just to remind you, you're going to need another spot for a bearing on the front plate if you intend to add a third stage.

This is a beautiful, elegant gear box. Awesome job on it!

Yeah I did not think about the bolt heads getting the the way I will have to go and fix it but the I add the third stage I will have to face mount to thag any way. The reason I have yet to add the third stage and another bearing because I am not 100% sure how to do it but I will figure it out :D. As for saving space I am making this box with the intention of making it easy to tuck away and less awkward so I could mount the motors closer together but I choose not too. Thanks for the feedback.

wasayanwer97 29-03-2014 22:18

Re: pic: Next Revision
 
Quote:

Originally Posted by Dr.Gusta (Post 1366312)
Yeah I did not think about the bolt heads getting the the way I will have to go and fix it but the I add the third stage I will have to face mount to thag any way. The reason I have yet to add the third stage and another bearing because I am not 100% sure how to do it but I will figure it out :D. As for saving space I am making this box with the intention of making it easy to tuck away and less awkward so I could mount the motors closer together but I choose not too. Thanks for the feedback.

If you need any help with the third stage, just let me know. I'd be more than glad to help.


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