|
|
|
![]() |
|
|||||||
|
||||||||
![]() |
|
|
Thread Tools |
Rating:
|
Display Modes |
|
|
|
#1
|
||||
|
||||
|
Re: pic: Bumper idea - legal?
Quote:
--can be tricky to attach. You have to get it right on the first try. --must be precisely aligned --can sometimes be difficult to fasten --often come unsnapped when under stress There's a reason Velcro has outstripped snap fasteners in popularity. So be sure to experiment and test, test, test with extra fabric and bumper assemblies before committing to using snap fasteners on your competition bumpers. Thread shouldn't be a problem; use of fabric implies use of thread, even more so than use of aluminum or steel implies use of welding. Thread is not generally regarded as a "fastener" the way buttons, snaps, and Velcro are. Invisible thread would solve the problem of color matching. Sulky brand invisible thread is nicer to work with than some others, but I don't know if it's as strong. Sewing a second line of stitching over the first line of stitching is a good way to make a strong seam using any kind of thread. |
|
#2
|
|||||
|
|||||
|
Re: pic: Bumper idea - legal?
You might consider fusible interfacing between the red and blue to keep them laying flat and neat.
|
|
#3
|
||||
|
||||
|
Re: pic: Bumper idea - legal?
Quote:
|
|
#4
|
||||
|
||||
|
Re: pic: Bumper idea - legal?
The other interesting change due to Update #9 is that apparently non-red/blue bumpers are allowed, as long as the covers are red and blue (or reversible red & blue).
|
|
#5
|
|||||
|
|||||
|
Re: pic: Bumper idea - legal?
Quote:
|
|
#6
|
|||||
|
|||||
|
Re: pic: Bumper idea - legal?
Quote:
. |
|
#7
|
||||
|
||||
|
Re: pic: Bumper idea - legal?
For reference,
Quote:
Now if the rule said: "The fabric the bumper is constructed of must be solid red or solid blue in color....." then it would be a different story. |
|
#8
|
|||||
|
|||||
|
Re: pic: Bumper idea - legal?
Quote:
|
|
#9
|
||||
|
||||
|
Re: pic: Bumper idea - legal?
I think to save everyone the hastle, just make a set of red and blue bumpers, case closed and worry about building the robot.
Seattle Fabrics doesnt have a shortage of those colors. ![]() |
|
#10
|
||||
|
||||
|
Re: pic: Bumper idea - legal?
Quote:
OK, in light of BOTH rules <R07> and <R12-B>, I must concede you are correct again. [Billbo bows in the presence of greatness....again] (Man, my bald spot is starting to turn red from all the head slaps. Maybe I should read every rule on every detail before I stick my foot in my mouth again.) ![]() |
|
#11
|
|||||
|
|||||
|
Re: pic: Bumper idea - legal?
Quote:
Thank you for your thoughts on the matter. This not being an official FIRST forum, I am asking your opinion, with the explicit understanding that your opinion (possibly expressed here) carries no weight at all as far as inspection, rules, or competitions are concerned. That is, your opinion is not an official communication from FIRST. Just some guy's opinion. Is it legal to use the idea presented here? Don . |
|
#12
|
|||||
|
|||||
|
Re: pic: Bumper idea - legal?
Dave,
The proposed construction method above would present a single piece/color of fabric to the view of all. A good seamstress would of course use a different color when stitching the fabric so that the red side is stitched in red and the blue side in blue. Numbers would of course have to be present on both sides. |
|
#13
|
|||||
|
|||||
|
Re: pic: Bumper idea - legal?
Quote:
Given that it met all bumper rules with either color showing, my (unofficial) opinion is that it would pass inspection. |
|
#14
|
|||||
|
|||||
|
Re: pic: Bumper idea - legal?
Ah, I didn't get that connection; I was a little fuzzy on how we got from the idea to #9; now I see it was directly through Q&A. OK then.
I don't want to put words into Dave's mouth (but I will anyway) but I think he was just reminding us that there are other issues to consider when skinning a bumper... |
|
#15
|
||||
|
||||
|
Re: pic: Bumper idea - legal?
Quote:
If you interpret <R07F> to deal with the fabric directly enclosing the pool noodles, or all fabric in the bumpers, then I agree, your interpretation is accurate. However, if you interpret the same paragraph to refer instead to the single layer of "fabric covering the BUMPERS", then the combination of <R07> and <R12> does not restrict the colour of the rest of the bumper, when properly covered with a red or blue fabric shroud. Is the intent of that part of the rule simply to permit clear identification, or also to restrict the selection of fabric colours and markings that will be invisible during matches? |
![]() |
| Thread Tools | |
| Display Modes | Rate This Thread |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Mechanism outside bumper - legal? | basicxman | Rules/Strategy | 13 | 13-01-2010 23:26 |
| Are these bumper configurations legal? | team3420 | Rules/Strategy | 8 | 12-01-2010 13:32 |
| pic: Legal Bumper Configuration? | AdamHeard | Extra Discussion | 31 | 15-01-2009 03:15 |
| What is a legal bumper? | lemon1324 | Technical Discussion | 10 | 26-01-2008 18:23 |