search

IEEERobotics / bot

Robot code for 2014.
BSD 2-Clause "Simplified" License
18 stars 11 forks source link

Wheels keep falling off. #463

Open AhmedSamara opened 8 years ago

AhmedSamara commented 8 years ago

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

PaladinEng commented 8 years ago

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 https://github.com/IEEERobotics/bot/issues/463.

SeanKetring commented 8 years ago

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.

PaladinEng commented 8 years ago

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.

— Reply to this email directly or view it on GitHub https://github.com/IEEERobotics/bot/issues/463#issuecomment-191812927.

SeanKetring commented 8 years ago

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

cdyoder commented 8 years ago

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 https://github.com/IEEERobotics/bot/issues/463#issuecomment-191917276.

PaladinEng commented 8 years ago

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 https://github.com/IEEERobotics/bot/issues/463#issuecomment-191917276.

— Reply to this email directly or view it on GitHub https://github.com/IEEERobotics/bot/issues/463#issuecomment-191922233.