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Unread 15-10-2013, 18:06
Adrian Clark Adrian Clark is offline
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FRC #1678 (Citrus Circuits)
Team Role: Mentor
 
Join Date: Apr 2012
Rookie Year: 2009
Location: United States
Posts: 79
Adrian Clark is a jewel in the roughAdrian Clark is a jewel in the roughAdrian Clark is a jewel in the roughAdrian Clark is a jewel in the rough
Re: Show off your machining!

Quote:
Originally Posted by Cory View Post
Pictures Here

The first is of the majority of our 2010 drivetrain components. Impressive just because of sheer quantity.

The bearing mounts are cool because we 3D surfaced them in the machine. Previously we were hanging a long bar out the side of the vise, machined the contour in from the side, then sending a kid to chop the semi finished part off the raw bar so that the backside could be machined. Switching to the 3D surfaced part eliminated all secondary handling and allowed the parts to get done way faster.

The rest of the pictures are of my favorite part I've ever machined. It was the yoke that held the wheels for our grabber onto the end of the grabber arm in 2011. It was a pretty subtle part when looked at on the robot, but it required a ton of machining and looks really cool on it's own. I like it so much because everything about it came out perfectly, when I was worried that some features wouldn't match, that there would be chatter on the inside walls of the part, etc.
Could you elaborate on how you did the surfacing on the bearing mounts?

Also, I love that yoke. I wish I had a chance to make something that complex. It looks like you chose to pre-drill your bearing bores with a twist drill then finish with and end mill. If that's what you did, why'd you chose to do it that way instead of just milling the hole?

Thanks,
-Adrian