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Unread 24-12-2013, 00:37
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VEX Robotics Engineer
AKA: Arthur Dutra IV; NERD #18
FRC #0148 (Robowranglers)
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Re: 973 Remote Assistance and Mentorship Program (RAMP)

Just watched a few of these videos, and they have some great information in them. I've also used the 2D sketches to "design" robots and layouts for years now, but there is one thing you can do to make the process even better. Draw all the fixed geometry things (such as the height of 2011 pegs or a tipped bridge in 2012 or pyramid profile in 2013) or sizing volume limitations or robot chassis/bumpers (if size is already nailed down) on one sketch. Close the sketch, turn on Visible Sketches, then right click on the sketch in the feature tree and click Edit Sketch Color. Make this red or green or a different color.

Then start a new sketch on the same exact plane as the original sketch, and start drawing drive trains, arms, elevators, etc in this new sketch. This does three things: 1. it hides all the sketch dimensions for fixed geometry that clutters your screen, 2. it make it easier to see the difference between field/robot lines when you start adding all kinds of mechanisms or linkages and 3. you can iterate through ideas quickly by closing a sketch, hiding/suppressing it, then starting another new sketch on the same plane= without having to redraw all the fixed geometry.

Quote:
Originally Posted by AdamHeard View Post
Oh boy. You're not going to like the pocketing video that just finished uploading...

I agree with your point, and I'm a bit sloppy in that regard but generally do trim to make things clean (except in the pocketing example).
I also cringed at the untrimmed lines in the pocketing video, as I've lost track of how many times I've been sloppy modeling stuff and it takes more time to fix things if when there's more iterations and everything breaks. For the past two years I've always used a model-it-right-the-first-time attitude towards all CAD.
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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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