Lift Peg (Spring) Source?

[EricWilliams]

The McMaster listing https://www.mcmaster.com/#9664k68/=15ta0ri as per the field drawing is showing "usually ships in 2 weeks" and our order confirmation says "ships in 2-4 weeks

Anyone have leads on other (more readily available) sources?

[RoboTigers1796]

Originally Posted by EricWilliams

The McMaster listing https://www.mcmaster.com/#9664k68/=15ta0ri as per the field drawing is showing "usually ships in 2 weeks" and our order confirmation says "ships in 2-4 weeks

Anyone have leads on other (more readily available) sources?

In the same boat, been searching but can't find an alternate source. Would appreciate any help!

[garpal_robotics]

Hi folks-- ran into the same issue. I ordered the 9664K68 and will wait the 2 weeks for the real deal... However right above that spring on McMaster is: 9664K31 it is a lighter gauge wire .105 vs the .135 but it has the same outside diameter... I think it will get us through prototyping in week one. (it was available right away)

Hope that helps a little.

[Nuttyman54]

Originally Posted by garpal_robotics

Hi folks-- ran into the same issue. I ordered the 9664K68 and will wait the 2 weeks for the real deal... However right above that spring on McMaster is: 9664K31 it is a lighter gauge wire .105 vs the .135 but it has the same outside diameter... I think it will get us through prototyping in week one. (it was available right away)

Hope that helps a little.

Word of warning: 9664K31 won't behave anything like the official spec 9664K68. The field official spring has 24lb starting force and 159lb/in spring rate. The replacement you spec'd is a 9lb spring with only 14lb/in spring rate, nearly an order of magnitude less stiff than the competition spec.

[dtengineering]

Try this. They also have Canadian distribution so will ship without brokerage. http://www.essentracomponents.com/en...springs/es-241

[Cory]

Just call McMaster. "ships in 2 weeks" tends to be the standard placeholder for "we don't have this at the moment". I've almost always had that 2 weeks go down to 1-2 days when I call and say I need it sooner.

I'm sure it's gonna be longer than 2 days in this case but I would be surprised if McMaster is actually out of stock for 2 weeks. It may just be an automated status since they got a massive run on an item they probably sell 1 or 2 of a day at most.

[Jpatterson1710]

Don't forget McMaster has five regional distribution centers. You might be able to pick one up if you're located near one of the warehouses.

Unfortunately I wasn't able to determine the location of all of the regional warehouses, but I do know we have one here in Kansas City.

Can't hurt to call and ask for directions to a warehouse, or rushed fulfillment.

[Ari423]

Originally Posted by Jpatterson1710

Don't forget McMaster has five regional distribution centers. You might be able to pick one up if you're located near one of the warehouses.

Unfortunately I wasn't able to determine the location of all of the regional warehouses, but I do know we have one here in Kansas City.

Can't hurt to call and ask for directions to a warehouse, or rushed fulfillment.

The five regional distribution centers are in Atlanta, Chicago, Cleveland, Los Angeles, and Princeton (NJ).


Also have any Israeli teams found an Israeli distributor with an equivalent spring?

[Jpatterson1710]

Originally Posted by Ari423

The five regional distribution centers are in Atlanta, Chicago, Cleveland, Los Angeles, and Princeton (NJ).


Also have any Israeli teams found an Israeli distributor with an equivalent spring?

Hmmm, we definitely got McMaster parts locally (Kansas City) when I was on a team, any idea of a warehouse closed in the past couple years?

[Ari423]

Originally Posted by Jpatterson1710

Hmmm, we definitely got McMaster parts locally (Kansas City) when I was on a team, any idea of a warehouse closed in the past couple years?

No idea but those are the 5 listed on their website (top left corner)

[TroyCDH]

Greetings,

I am looking at the "team build" wood drawings. I do not see a cut length for the 7/8 diameter spring. McMaster shows the part is 36" long. I doubt we need all that. Home Depot sells a 7/8 with some ends that i would have to cut off.

Anyone see the spring length for the team build?

Thanks, Troy 2450

[one4robots]

Originally Posted by TroyCDH

Greetings,

I am looking at the "team build" wood drawings. I do not see a cut length for the 7/8 diameter spring. McMaster shows the part is 36" long. I doubt we need all that. Home Depot sells a 7/8 with some ends that i would have to cut off.

Anyone see the spring length for the team build?

Thanks, Troy 2450

Hi Troy,

The length is 9" per the team build plans. We bought a spring at Menards that is that length, but not as thick guage, therefore not as stiff. It works fine for prototyping.

Vince

[Ubiquity]

I found a 12 inch extension spring at Home Depot, sku 172 045 15637. Cost about $7. This is the Everbuilt (Home Depot branded) spring found near door hardware.

Looks like it will work just fine, It may be a little less stiff than the McMaster.

Available today! (I do not work or endorse Home Depot Products. )

https://drive.google.com/open?id=0B2...mNwMGxsZ3ZOVU0

[SenorZ]

I called. They guy said, "Is this for a robot project? Yeah, we're not going to be able to get them for at least a week." [Los Angeles area center in Santa Fe Springs]

[BenDSterling]

I just spoke with McMaster [Atlanta Distribution Center] and they guy on the phone said that this spring is currently the most popular item on their site right now (haha go FIRST). He also said that the majority of the phone calls he has answered today have been asking for this spring. He was genuinely confused on why this spring was so popular.

He said that, if anything, it will probably be longer than expected. So we might be out of luck.