Thread: CAD?
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Unread 13-04-2014, 09:10
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VEX Robotics Engineer
AKA: Arthur Dutra IV; NERD #18
FRC #0148 (Robowranglers)
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Re: CAD?

Quote:
Originally Posted by Dival View Post
We had this issue this year. Can you explain a bit more about how you organize the part numbers so that the team can handle them?
I used a similar standard when I was on 228 as we currently use on 148: YEAR-SUB_SYSTEM-PART_ID. The top level assembly is 000, and each major subsystem gets a number like 100 for drive train, 200 for mechanism 1, 300 for mechanism 2, etc. Sub assemblies within that mechanism get numbers like 110 or 320. Each individual part is assigned a unique ID in the lowest assembly it is used in. If parts are COTS, you use the the manufacturer part number.

2014-000 Rev1 (main robot assembly)
- 2014-100 Rev1 (entire drivetrain assembly)
-- 2014-100-001 Rev1 (drive train part 1)
-- 2014-100-002 Rev1 (drive train part 2)
-- 2014-110 Rev1 (gearbox)
--- 2014-110-001 (gearbox part 1)
--- McMaster 91251A342 (#10-32 x 0.5in SHCS)
- 2014-200 Rev1 (mechanism 1 assembly)
-- 2014-200-001 Rev1 (mechanism 1 part 1)
etc

This is also really useful because in Solidworks you can set who has write access and who has read-only access, so you can have multiple people working on the CAD at once (one person could be editing -100 assembly and sub parts, another editing -200 assembly and sub parts, etc). The key to making all of that work is by opening all referenced parts as read only. To do that, check this box:

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Art Dutra IV
Robotics Engineer, VEX Robotics, Inc., a subsidiary of Innovation First International (IFI)
Robowranglers Team 148 | GUS Robotics Team 228 (Alumni) | Rho Beta Epsilon (Alumni) | @arthurdutra

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