Robot Parts and Materials - Answer Thread

[Sheldon]

Hello,

is http://www.cncrouterparts.com/dumpst...mbly-p-36.html legal given that lead screws and compatible nuts are allowed, and that the nut is a whole part that cannot be separated or disassembled (we have already ordered and received one)?

A: Rule <R05.c> allows for the use of lead screws and their compatible nuts. The parts in question are legal.

[Sheldon]

Are the Wheels from AndyMark with machined hubs allowed as legal parts?
IE: http://www.andymark.com/product-p/am-2612.htm

A: The rules are being amended to allow the use of any wheel up to 4" dia. and their compatible mounting hubs. The GDC has not measured this or any COTS wheel, but if this wheel is 4" dia. or less then it would be a legal part.

[Sheldon]

Where can we find the robot rules document for FTC block party?

A: The Robot Rules can be found in the FTC Game Manual Part 1. You can download a PDF file of this manual at http://www.usfirst.org/roboticsprograms/ftc/game

[Sheldon]

Can you tell us if this slider would be legal under the rule allowing sliders, rack & pinions, etc.? We know the channels are not but we are wanting to know about the slider itself.

http://www.servocity.com/html/channe...__637108_.html


Thnx

A: This COTS is an assembly of parts and is not considered a slider under the rules. It is not legal.

[Sheldon]

Are eye bolts like the following considered legal fasteners?
http://www.lowes.com/pd_22216-1277-M...ductId=3167915

A: Yes, eye bolts are considered a fastener and are legal.

[Sheldon]

Hello,

Under the new rule, would http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXKSC1 wheel hex hub be legal?


Thank you,

358

A: Under the new rules, these wheel hubs will now be a legal part.

[Sheldon]

Our team is planning on using a rope and hook during the end game to raise our robot and we were wondering if that would pass inspection on grounds of possible entanglement?

A: Rope and team-built hooks are legal parts but it is impossible for the GDC to rule on a specific robot function without seeing how the parts are used. The Hardware Inspectors will look to see that the parts are used in a safe manner and that there is no possibility of the rope or hook releasing accidentally. They will also evaluate the mechnism to determine if it poses an entanglement risk during use. And remember that even if the mechanism passes Inspection, the Referee can still penalize the team if the rope or hook entangles another robot during the match.

[Sheldon]

We asked in the Players helping Players if steel rollers are allowed. Are final response was unsure but I used R05 I and L stating they should be allowed. Can were get a certain response.

A: The GDC cannot answer this question without knowing more about the steel roller. Please provide a specific part number or link to a catalog. Note that the Players Helping Players forum is not considered an official answer.

[Sheldon]

1) Snap together cable carrier from Igus
http://www.igus.com/wpck/3516/overview_E2mini

2) Lexan plastic
http://www.homedepot.com/p/LEXAN-72-...6#.UmvNxPmURCA
3) Linear Drawer Slides
http://www.firgelliauto.com/product_...be45008736ef17


Thank you for your time. Have a great day.

A1: Cable carrier is allowed by Rule <R08.t>
A2: Lexan is allowed by Rule <R04.b>
A3: The linear slide is allowed by Rule < R05.a>

[Sheldon]

Are eye hooks such as below legal as fasteners? Thanks.

http://www.homedepot.com/p/Everbilt-...1212/202305418

A: Yes, eye hooks are a legal fastener per rule <R05.k>