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**FIRST EMAIL**/Advance Material List for the 2005 Competition Now Available!
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**FIRST EMAIL**/Advance Material List for the 2005 Competition Now Available!
Hello. This is an important announcement for all FIRST Robotics Competition teams. Please share this information with the rest of your team in a timely manner. If you think that other members of your team would also like to receive these announcements, please encourage them to sign up at http://listserv.leapit.com/cgi-bin/l...join=frcpublic. If you would like to stop receiving these messages, please see the bottom of this message for instructions. __________________________________________________ ____ Greetings Teams: The Engineering Department is pleased to announce the availability of the Advance Material List for the 2005 competition. It is available on the FIRST web site at: http://www2.usfirst.org/2005comp/AdvanceBuy_r4.pdf This list contains common materials required to build the robot or field elements for the 2005 competition that are not included in the kit provided by FIRST. Happy Building! ************************************************* Now all you speculatin'-type folk can really go to town! |
Re: Advance Material List for the 2005 Competition Now Available!
I am intrigued primarily by the quart of Sunny Summer paint (looked it up on the Behr website... it's an orangish peach), the shallow pot magnet (only one?), and the Radio Shack project enclosures. Everything else seemed like pretty standard... PVC, lumber, mounting hardware, and a square foot of Lexan. Any speculation?
<edit> Information about the magnet from the Grainger website: "Maximum Pull 20 Pounds, Diameter 2.030 Inches, Height 0.312 Inch, Hole Diameter 0.187 Inch" </edit> |
Re: Advance Material List for the 2005 Competition Now Available!
Could someone copy and paste the list into a post. It seems like there is a big backup on www.usfirst.org and my dialup connection isn't wanting to get it.
Thanks <edit> nevermind i got it now FIRST Robotics Competition 2005 Advance Material List Rev. 4 1/5/05 Item Material Quantity Cost/ea Ext. Cost Source 1 10 ft. x 1 1/4 in. Sch. 40 Electrical Conduit (Grey) PVC 10 $3.29 $32.90 Home Depot 2 1 1/4 in. PVC Schedule 40 End Cap 24 $0.51 $12.24 Home Depot 3 1in. PVC Sch. 40 Coupling (1 5/8 in. OD) 1 $0.29 $0.29 Home Depot 4 3/4 in. PVC Sch. 80 pipe (or a 3/4 in. schedule 80 PVC pipe nipple) 6 in Home Depot 5 1 ft x 1 ft x 1/4 in thick polycarbonate (Lexan) 1 $8.10 $8.10 McMaster #8574K28 6 1/4 in x 4 ft. x 8 ft. Plywood or Luan 1 $10.00 $10.00 Home Depot 7 1/2 in. x 4 ft. x 8 ft. Plywood 1 $15.00 $15.00 Home Depot 8 1 in. x 3 in. x 8 ft. SPF Lumber* 1 $1.97 $1.97 Home Depot 9 2 in. x 3 in. x 8 ft. SPF Lumber* 1 $1.97 $1.97 Home Depot 10 #8 x 1 1/4 in. Flat Head Wood Screw 1/2 lb. Home Depot 11 1/4 in. x 3/4 in. Hex Head Bolt 24 $0.12 $2.88 Home Depot 12 1/4 in. Washer 24 $0.05 $1.20 Home Depot 13 1/4-20 x 5/16 in. high Threaded Tee Nut 24 $0.22 $5.34 Home Depot, McMaster #90975A025 14 2 in. OD x 1/2 ( 9/32 in. ID) Fender Washer- Steel 4 $0.20 $0.80 Fastenal- Nick- 603-647-1890 or McMaster Carr www.mcmaster.com or Ace Hardware 15 10-24 x 1.75 Flat Head Machine Screw 2 $0.10 $0.20 Home Depot or Ace Hardware 16 10-24 Elastic Stop Nut (Nylok) 5 $0.09 $0.45 Home Depot or Ace Hardware 17 10-32 x 1.75 Socket Head Cap Screw 12 $0.47 $5.64 McMaster #91255A276 18 10-32 nut 12 $0.01 $0.10 McMaster #90480A195 19 #10 Washer 2 $0.05 $0.10 Home Depot or Ace Hardware 20 4-40 x 1/4 in. Phillips head screw 4 $0.05 $0.20 Home Depot or Ace Hardware 21 4-40 x 3/8 in. Phillips head screw 1 $0.05 $0.05 Home Depot or Ace Hardware 22 4-40 nut 2 $0.05 $0.10 Home Depot or Ace Hardware 23 #4 flat washer 4 $0.05 $0.20 Home Depot or Ace Hardware 24 Shallow Pot Magnet- General P/N 376B 1 $4.85 $4.85 Grainger Cat. # 3G901, McMaster # 5685K32 25 ANSI 35 Connecting Link 1 $0.57 0.57 McMaster #6261K191 26 3/8 in dia Bolt, 5 in. long 4 Home Depot 27 Washer for 3/8 bolt 4 Home Depot 28 3/8 Elastic Stop Nut (Nyloc) for 3/8 bolt 4 Home Depot 29 1/2 in OD, 3/8 in ID hollow rod, polycarbonate (need 16 in.) 8 ft $6.40 $6.40 McMaster #8585K12 30 Behr Premium Plus Interior Flat Wall Paint- Sunny Summer (S-G-380) 1 qt Home Depot 31 4 in. x 2 in. x 1 in. Project Box 1 $2.69 $6.40 Radio Shack #270-1802 32 Lithium Multi-Purpose Grease Hardware or Auto Store *Note: US dimensional lumber SPF (Spruce, Pine or Fir) actual size is smaller than its name 1 in. x 3 in. is approx. 3/4 in. x 2 1/2 in. 2 in. x 3 in. is approx. 1 1/2 in. x 2 1/2 in. |
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If you're curious about the paint color, go here: http://www.behr.com/behrx/colorsmart...e=sunny+summer
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Auto grease, a project box from radio shack, 'sunny summer' paint, a hollow polycarb rod, a magnet.
These are all items that are highly abnormal for FIRST fields, in my experience. A little research yields that you can find the color 'Sunny Summer' by searching a javascript program by the Behr company. It appears to have the rgb value E8BA16 --- awfully ugly color, IMHO. Also, the grease suggests moving parts. I believe the project box will be used to house whatever IR component is surely to be on the field. Perhaps a robot will have to retrieve something stuck to the magnet... What is a 'Pot' Magnet, anyhow? |
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8ft of polycarbonate rods? doesnt seem too familiar to me. heh. ah. what a great distraction from homework. though from most sites thats standard length.
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What about the single #35 chain link?
Weird. Matt |
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NO casters? YAY. No moving field components?
:D However, this list is probably not a complete one for obvious reasons. |
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There aren't as many big pieces as lat year, which tells me the structure on the field is much smaller, but more complicated.
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Urhm...
Heres what the magnet looks like  |
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And the plot thickens...
The paint and the lith grease caught my attention immediately. Why ugly orange paint and lith grease? We can (and will) only speculate. |
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The magnet can be used to unlock a gate or opening device so that you can get "out" to the center. Remember the clue that was denied??? :rolleyes:
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 http://www.grainger.com/images/products/3G899.JPG Don't these usually come in the hardware dept at stores like K-Mart with hooks attached to them? Kind of like this: http://www.eclipse-magnetics.co.uk/images/893i073v7.jpg |
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Oh, this is going to be sweet. :)
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I think the extensive PVC indicates that goals similar to 2004 or 2002 will be implemented again, or if not perhaps some sort of fence.
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Items #-2,4,11,12,13,17,18 are all multiples of three...
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The Pipe couplings indicate that the pipe will be used in lengths larger than 10ft.
EDIT:: NEvermind.... The couplings are a different size I doubt this is the case, but it would be really cool if the magned was embedded in the floor and we had to use HAL sensors to figure out when we are over a certian point on the field. It looks like there will be a raised platform but not a high one judging from the lack of support material. I picture the plywood supported by the 1x3s and 2x 3s layed on their side. There will definately be something moving. Judging by the aount of small hardware there willbe something small but complex. I don't think the second thinner sheet of plywood will be supporting weight. |
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I'm guessing item #31 is a robot part ... interesting they'd put that as part of the BOM!
#31 Item: 4 in. x 2 in. x 1 in. Project Box Qty: 1 Cost: $2.69 And, looking at the magnet ... "The center is out" Hmmmm ... ;) |
Re: **FIRST EMAIL**/Advance Material List for the 2005 Competition Now Available!
FIRST saw Andy Baker's Survivor video.
We're capturing greased "pigs!" The yellow paint must be for the student human player, to add realism. |
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Item 14 sticks to item 24
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Is not the electrical PVC very rigid? Unlike the white used last year?
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Did last years Material List include the carpet? Because i don't see carpet listed.
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no carpet is normally not included in the BOM. And if i remember right first normally will include sample squares of the different surface materials in the KOP.
--Remember In 2003 and 2004, in the "Cheap BOM" 1/8" and 1/4" pieces of plywood was used in place of HDPE, Polycarbonate and other higher priced surface materials. So dont be surprised if item 6 will 'sit' on 7 but is a seperate material in the real field BOM. |
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Well, aside from the "amathyst" in the hint, the yellow could be another version of the three-alliance theory.
Red, blue, yellow... the primary colors. I mean, that's kinda a FIRST thing to do. They could use it like the gaffer tape last year as some sort of guide. |
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How about the steel bars used to create the pull-up bar, or the supports for the kickball cage.. were they on the list last year?
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This is a very strange BOM this year, the magnet really intrigues me, I think it has something to do with autonomous mode, I don't know why, just a feeling. |
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The total for everything listed is $117.95
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opposite side of the color wheel for the purple glasses? Is the project box for a purple beacon? |
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Just remember there may be other specific parts not listed. This may only be some of it.
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Consider how a hockey goal is anchored to the rink. It is not a solid connection , but rather a magnetic one. There is a magnet embedded in the ice. There is also a magnet attached to the goal.
Perhaps there is some type of semi-movable object that will be anchored with the magnet?!?!?!? |
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For example they list a Connecting link for #35 chain. I'd assume the sprockets, chain, (and motor?) will be in the KOP. Something is moving around on the field this year!! Should be fun. |
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That small polycarbonate sheet is also a bit strange (1 ft x 1 ft x 1/4 in), as well as lumber, I think the last time it was used was in 2003, to structure the ramp.
The magnet got me totally lost, I think something awesome is coming Saturday :) Few people noticed that single 35 chain connecting link, it seems more like a joke (a sick one :yikes: ) Maybe that grease is to lubricate the polycarbonate rod, "need 16 inches", who knows if it will not serve as a pole for some parrot :p And, I think the more important after the magnet, why would FIRST ask for elastic stop nuts instead of regular ones, perhaps some part of the field will be prone to rotation or vibration, or impact, or... :ahh: Only 58 hours left... I can wait, I guess... Can't we? Course not! :D |
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If somethings moving, it better keep out of the way! |
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Conversly, if you are trying to detect something against a yellow background, a purple filter would make the background appear black. Again, quite useful for an optical sensor. |
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I see magnets on your robot activating field objects... and as others have stated, something on the field is going to be moving other than the robots. Sounds pretty sweet to me already :]
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I wonder why 1/4 inch polycarb was specified...Standard sizes for polycarb (standard as in available at the local Home Depot/Lowes/Ace) is usually 3/16 inch and 5/16 inch...Hmmm
Why expensive and hard to use wood screws that are not that much beefier then common deck screws (specified wood screw = 5/32 inch dia vs about 1/8 inch dia for deck screws) Also, 4-40 screws are really small, those are the size that fit through the holes in the speed controllers, I wonder what they are for. My vote for the magnets is that they are on the robot and they trigger some sort of auton mode or score points by activating reed switches or hall effect sensors on the field. (maybe what's in the box) Good luck everybody! -Andy |
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Keep in mind that this list is deceptive because its only for a basic assembly of whatever it is that we are assembly. That may mean for instance, only one goal or only one corral (for lack of better examples) so the quantities may look strange now, but they will probably make much more sense once the game is revealed and to what extent the scoring objects are used.
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Look at all the PVC and Endcaps. Possible game pieces?
What's up with the single ANSI 35 connecting link? :ahh: :confused: |
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Based on the chain, the grease, and the project box, I'm going to venture that the field is going to be more interactive this year. And what's going in the box?
I've also heard it suggested that the paint is so that the IR doesn't reflect as much. |
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maybe the IR sensors will move around the field
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Everyone obsessing over clues and the BOM lists seems to forget that there is a much wider range of games then ones we seem to be restricting our thought (in orders of magnitude, robot size 10^0 feet, weight, 10^2 lbs, field size, 10^1 feet, power 10^2 watts, etc.) But the BOM seems to indicate that we are still dealing wiht a similarly sized field (lots of 10 ft pipe, 4x8 plywood, and 8 foot pieces of lumber.)
Of course, there are plenty of reasons for FIRST not modifying the game significantly, but I don't think the general stuff was a given |
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I think with the relatively small amount of materials (in relation to previous years) that the field will be mostly flat.
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What startles me the most, is the SIZE of the parts not the parts themselves. I wonder if the dimensions will be different this year (smaller) because the field parts are smaller?
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My theory:
We're going to have a moving wall in the middle of the field the field. It will rotate on a pivot and will have clearance beneath it for shorter robots like the 2003 bar. |
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Yes this field uses substantially less material than the 2004 BOM required.
I can see the caps acting as almost a ladder rung retainer (if the pipe were penetrating wood on both ends, then capped on the outsides) I'll bet the box will house a battery powered portable and durable beacon for field use - or have something to do with the magnet trigger I'll bet that 12x12 lexan is a pressure plate, possibly a base as in "baseball" and the magnet will be used in a triggering device on that plate, wired up to something that would trip a feature? those (2) 3x? 8' long boards seem like a pedestal thats capped with the 4x8 plywood and layered with the 1/4" to brace the penetrated PVC. One bold prediction is the lack of large field objects might mean an abundance of game pieces. Man I hope the people who said baseballs weren't right. I think were making some sort of basket or ladder thing on top of the very low (2 1/2" high maybe) pedestal to collect said game pieces. this clear field is also a good indicator of 6 bots at a time, to give more playing room. Although it's safe to assume this is enough equipment for you to build test features and not necessarily full playing field objects. I think the chain link is just to throw us off. BTW I just happen to have a purple piece of clear film, which I looked through at the BEHR yellow sample color on the white background, and it made no difference, it just gave everything a purple hue but i still saw yellow and white and everything else |
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this field seems like it is going to be pretty complex and quite involved, i can see now why people have been saying that the fields may be smaller. my question is whether this field will make it too hard for rookie teams to work on. oh, and one more, aren't magnets generally considered to be a hazard around electronic components (eg: the controllers, etc)? it seems like an odd piece to implement. |
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Sunny Summer!!!!!
A color that ugly can only mean one thing ... Inflatable Clowns!!!!!!!!!!! (or Lavery's painting his house) |
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Maybe the color of the paint doesn't matter at all. FIRST talked with Behr paints and they decided on an "ugly" color most likely to be found and under used by normal painting. OK so we know FIRST is calculated enough that the color would matter.
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There's 100 feet of 1 1/4 in. Sch. 40 Electrical Conduit. Hmm... with all this pipe- anyone thinking of Ladder Logic?
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we're playin paintball: robot style!!!
the robots are going to be runnin around... throwin paint on eachother, and we pre-spray our robots with the grease to make sure the paint rubs off easily at the end. hehee :ahh: :D :ahh: imagine each team havin a different color paint to use... then we'd have some wildstang colored bots drivin around just kiddin guys. |
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The paint is a flat paint, which won't reflect IR light like glossy. Last year there was a big problem with the light reflecting everywhere at competitions.
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I'm no expert in building materials but I would assume that 10ft sections of pipe are the largest that the average person can easily transport. I'm guessing they won't stay that size and the field blueprints will require teams to cut up the 10ft sections into something smaller. |
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In addition to such strange items as the 35 ANSI chain link connector, the magnet, and the project box, I'm especially intrigued by the paint and the square foot of Lexan. As far as the paint, I'm mostly interested in the fact that only 1 quart is listed, that's a fairly small amount, I think. And this square foot of Lexan, that's smaller than the footprints of the robots (for previous years anyways). In comparison to the field (at least from 2003 and 2004) that's pretty small in size.
Oh, I just can't wait until Saturday. |
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That square foot of lexan is going to be a base, as in baseball. Robots will have to "tag" the base magnetically, or maybe they can detect when they are on the base through a Hall Effect sensor or Reed switch.
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What part did Dave Lavery see when he first walked into Home Depot?
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A few thoughts:
Has FIRST ever thrown in "decoy" parts like some people are hypothesizing? It doesn't sound like it would be a terribly intelligent idea to just throw away money like that for the sole purpose of deceiving us... Perhaps there is more to the necessary parts that has yet to be revealed? Maybe one robot will have to tag the base which triggers something else on the field (perhaps involving the chain?), which their alliance partner must handle? Or we could see robots that could do both? The return of the mini-bot (think 2002) perhaps? |
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I really hope the project light isn't for an infrared beacon. I remember reading somewhere that radioshack project boxes are actually transparent to infrared light despite being opaque to visible light.
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A lot of people have been talking about the 35 ANSI Chain Loink connector. If you look it up on McMaster (http://www.mcmaster.com) you can see that it's a part for holding something up, or lifting something. Perhaps there will be something suspended in the air?
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I'm going to assume the PVC is EITHER for yet another goal with fingers pointed up, or else up to 12 "rungs" on a ladder with wooden sides. Holes in the wood and the caps nicely act as retainers for a ladder. You also have enough plywood again for a 4x4' by two layer base again, to form a static version of last year's rolling goal. Note that the only significant steel in the BOM is the four washers (item 14). Their 2" diameter would nicely work with the magnet. One possibility is that the washers are mounted in various positions on the static item, and that the magnet is attached to the box, making a grabbing "token" that can have up to four separate positions. Another interesting thing to note is that you can EXACTLY cover two sides of the plastic box with the four washers (two per side), to make a box that can be easily PLACED onto the magnet by the robot. I HIGHLY doubt that the magnet goes on the robot. A good use for it would be to have either Hall Effect sensors or Reed Switch in the kit, and DETECT the magnet with the robot. But, I'm pretty sure that the washers and the magnet do go together. Hey... You could make a "magnetically selectable" device of some kind with four detent positions! Imagine a "selector switch" for three alliances and Zero, that robots would have to "set" to determine who would own the points in the goal. (Probably not that much fun though... You'd be fighting over the "switch", or hovering over it.) Since there is no chain included, the ANSI 35 link is probably a "poor man's coupler/hinge", to add a degree of freedom to something small on the assembly. BTW... Does anyone here think that the quantities of the 4-40 and 10-24 nuts are misprinted?? There are (5) 4-40 screws and (2) 10-24 screws, but the OPPOSITE quantities of nuts for them. - Keith |
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after some discussions i had today, i really think that those PVC endcaps will be for short pieces that would be used as game/scoring pieces, like the balls were last year. i was told that we would need 1000 endcaps overall to build the entire field, though only 24 are listed on the advance materials list.
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You were told? by whom?
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great question max. a mentor stated today that she recieved a follow-up email concerning the list that stated this figure and also said that you would need 100-150 encaps minimum to build a practice field. i'm not a big advocate of spreading erroneous rumors, so if any of you can verify/denounce this, please let me know!
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Sounds pretty specious. You'd think it would be posted about if anyone else had heard it...
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if its a mostly flat field with fewer objects, would that make for more room for 6 robots on the field at the same time? |
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Everything else has been pretty easy to get, Looks like I'll need to contact a plumbing supply or electrical supply store. & yes I believe the chain the magnet & the 2 washers go together. |
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Eric |
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