IEEERobotics/bot

Wheels keep falling off.

Opened this issue · 6 comments

Even with the JB weld, the wheels just fell off the motor again.

It looks like the problem is just that it's increasingly difficult to get the epoxy in the correct place, especially without messing up the motors.

Any ideas?

@cdyoder @jdekler

We're already working on new couplers. In the meantime, the shaft of the
motor needs a small divot drilled into it that will allow the set screw to
actually sit in the divot.

On Tue, Mar 1, 2016 at 10:32 PM, Ahmed Samara notifications@github.com
wrote:

Even with the JB weld, the wheels just fell off the motor again.

It looks like the problem is just that it's increasingly difficult to get
the epoxy in the correct place, especially without messing up the motors.

Any ideas?

@cdyoder https://github.com/cdyoder @jdekler
https://github.com/jdekler


Reply to this email directly or view it on GitHub
#463.

I'm going today to look at a specialty store for set screws to meet the specs of the part Chris suggested.

http://www.amazon.com/Bolt-Base-Stainless-screws-Socket/dp/B00SN3532Q/ref=sr_1_5?ie=UTF8&qid=1456925346&sr=8-5&keywords=cone+set+screw+M3

I'm going to try and find an M3 and one size up in case we need to redrill and tap the set screw holes.

What's the store?

On Thu, Mar 3, 2016 at 10:23 AM, SeanKetring notifications@github.com
wrote:

I'm going today to look at a specialty store for set screws to meet the
specs of the part Chris suggested.

http://www.amazon.com/Bolt-Base-Stainless-screws-Socket/dp/B00SN3532Q/ref=sr_1_5?ie=UTF8&qid=1456925346&sr=8-5&keywords=cone+set+screw+M3

I'm going to try and find an M3 and one size up in case we need to redrill
and tap the set screw holes.


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#463 (comment).

The store was wilders nuts and bolts and unfortunately they dont have a cone point set screw. I think I found a much cheaper alternative to the one you sent Alwyn, on McMaster, which can ship today if we order fast. Take a look at this, and let me know if you see any reason I shouldn't order this, if I don't hear back I'll go ahead and order them by the end of the business day. They come in packs of 25 so there should be enough for the senior design teams as well.

http://www.mcmaster.com/#91217A055

@cdyoder @PaladinEng

Those should work.
-Chris
On Mar 3, 2016 2:06 PM, "SeanKetring" notifications@github.com wrote:

The store was wilders nuts and bolts and unfortunately they dont have a
cone point set screw. I think I found a much cheaper alternative to the one
you sent Alwyn, on McMaster, which can ship today if we order fast. Take a
look at this, and let me know if you see any reason I shouldn't order this,
if I don't hear back I'll go ahead and order them by the end of the
business day. They come in packs of 25 so there should be enough for the
senior design teams as well.

http://www.mcmaster.com/#91217A055

@cdyoder https://github.com/cdyoder @PaladinEng
https://github.com/PaladinEng


Reply to this email directly or view it on GitHub
#463 (comment).

Agreed, those are suitable. With a 25 pack, there should be enough for all
the senior design projects and the competition bots

On Thu, Mar 3, 2016 at 2:16 PM, cdyoder notifications@github.com wrote:

Those should work.
-Chris
On Mar 3, 2016 2:06 PM, "SeanKetring" notifications@github.com wrote:

The store was wilders nuts and bolts and unfortunately they dont have a
cone point set screw. I think I found a much cheaper alternative to the
one
you sent Alwyn, on McMaster, which can ship today if we order fast. Take
a
look at this, and let me know if you see any reason I shouldn't order
this,
if I don't hear back I'll go ahead and order them by the end of the
business day. They come in packs of 25 so there should be enough for the
senior design teams as well.

http://www.mcmaster.com/#91217A055

@cdyoder https://github.com/cdyoder @PaladinEng
https://github.com/PaladinEng


Reply to this email directly or view it on GitHub
#463 (comment).


Reply to this email directly or view it on GitHub
#463 (comment).