c-base chassis issue?

[wolfeman]

As we were picking up this year's KoP, the person
showed us a page describing a possible problem
with the c-base KoP chassis. They said a complete
description of the problem was on-line and you'd have
to ask for a replacement part if you had the problem.
It had something to do with the fit of the corner connectors
into the rails.

I can't find any mention of the "problem" on the FIRST site
or the Andy Mark site... Anyone pay closer attention
than I did and know what we should be looking for?

[Lowfategg]

Yup, we got the same information at our kick off. Seems like someone made a mistake on machining the parts.

All but 2 of our corner rails fit together. They were both oversize by about .090, and one has a bit of the casting still left in one of the slotted holes. Does Andy have any recommendations on fixing this or should I just throw it on our mill and take it off?

[Redo91]

If you have a mill to take the .009 off, I would just do it that way.

[quixeger]

If milling it is an option, it may be faster and more convenient. Ours are a tight fit, but they fit well. If the parts were too narrow, it would be obvious. If all else fails, break out the hammer!

[Lowfategg]

Originally Posted by Redo91

If you have a mill to take the .009 off, I would just do it that way.

Its not .009 its .090. Probably just going to do that since I don't think its worth shipping new ones.

Milling is not the problem (I like using our Bridgeport), but I can't believe how off they are.

[Akash Rastogi]

Originally Posted by Lowfategg

Its not .009 its .090. Probably just going to do that since I don't think its worth shipping new ones.

Milling is not the problem (I like using our Bridgeport), but I can't believe how off they are.

Yea i have to agree with that. I like AM products but that doesn't seem like a good first impression on new teams. just imho

[jskene]

What's the internal clearance of the C-base rails? I'm going to mill down some brackets for another team, but I only have the brackets and not the C rails.

The oversize brackets measure 1.095".

[Chuck Glick]

Just to make things easier to understand, sometimes mistakes happen. In this case a bad run or two of this corner connectors happened, but was only caught later and too late to fix all of them. AndyMark had to have all these c-bases shipped out to FIRST about a month ago so all teams could get their kits. They did recognize that there are some defects and there was an email sent out. This was not a wide spread problem among all of FIRST but rather, there are some bad connectors out there.

I personally love all of the AM products and have not had one problem ever with their quality. Even if you do recieve a bad product, AM will often replace the defect free of charge. Talk about customer service!

Also, this is the first year that AM is providing the kit chassis. Big order, small deadline. Some small mistakes are gonna happen.

[jskene]

Do you have a copy of the email? Does it contain the correct dimensions?

[Kyle Love]

This issue was a known problem before yesterday. Kickoff sites received boxes with replacement pieces to be issued to teams with defective parts. If they run out of replacements, contact andymark, andy@andymark.biz, and they will handle your issue as soon as possible. Remember, when producing parts in such bulk quantities, there are bound to be some that are a bit off.

[Chuck Glick]

I personally do not, but will and try to track one down for you. One should have been sent to each teams main contact.

[jskene]

I found the correct dimension of the corner brackets here:

http://andymark.biz/am-0212.html

It should be 0.995" thick. The ones I have are 1.095".