Chief Delphi - Show off your machining!

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Chief Delphi (http://www.chiefdelphi.com/forums/index.php)

- Technical Discussion (http://www.chiefdelphi.com/forums/forumdisplay.php?f=22)

- - Show off your machining! (http://www.chiefdelphi.com/forums/showthread.php?t=120266)

qzrrbz

12-10-2013 18:22

Re: Show off your machining!

Quote:

Originally Posted by DampRobot (Post 1296044)

Beautiful. I knew there was going to be some good stuff when Cory came on the thread.

Just so! Even his brackets are things of beauty! :)

cadandcookies

12-10-2013 22:56

Re: Show off your machining!

Unfortunately I don't have a better picture, but these were pieces done for our 2013 competition chassis. All sparring was no-contact.

http://i.imgur.com/egUATAB.jpg

I give up. This whole image thing really isn't working out.

Brandon_L

13-10-2013 00:21

Re: Show off your machining!

This was our first year with real machining resources (that arn't woodshop tools) and it went pretttty swell if you ask me.

Nifty CIM mount for our shooter, cut from a piece of 3x2x1/4
Okay, these were Akash's idea, but its still awesome.

Mmmm parts

Assembly

All parts generously donated by our sponsor, Gaum Inc.

Mk.32

13-10-2013 01:17

Re: Show off your machining!

This was our bot the 2nd week.

http://ultimate3647.tumblr.com/post/...kend-machining

Was done by myself on an CNC bridgeport and Tormach mill.

Gregor

13-10-2013 01:33

Re: Show off your machining!

Well I saw this beautifully machined ratcheting PTO winch gearbox at IRI with pretty tool paths and beautiful attention to detail. You can see the really nice toolpaths on the gearbox plate in the background.

And oh yeh, it's 696's. :cool:

MrBasse

13-10-2013 22:29

Re: Show off your machining!

Quote:

Originally Posted by cadandcookies (Post 1296107)

Is that an Electrathon car on the wall in the background? Good to see another group involved in electric car racing out there. We do NECA (National Electric Cart Association) here in Michigan but borrow a lot of Electrathon rules.

cadandcookies

13-10-2013 23:31

Re: Show off your machining!

Quote:

Originally Posted by MrBasse (Post 1296216)

Supermileage, actually. And sadly we don't compete any more-- many of the students who used to compete in Supermileage moved over to FRC when the team started in 2007. Due to a lack of funds (and shop time), for better or for worse, the Supermileage team faded and eventually folded into our FRC team.

Garrett.d.w

14-10-2013 01:11

Re: Show off your machining!

I present to you Kyle in his natural environment:

I'll see if I can dig up our arm transmission from Rebound Rumble. It was manufactured using the gears out of a Harbor Freight worm gear winch, which were lightened and placed in a custom aluminum housing.

Adrian Clark

14-10-2013 18:50

Re: Show off your machining!

3 Attachment(s)

Here's some shots of our drivetrain siderails and our new intake we built for champs. The intake was made my me on a cnc controled bridgeport and the siderails were cut at a mori seiki rnd facility on a prototype machine.

Sorry for the poor image quality.

-Adrian

BurkeHalderman

14-10-2013 20:41

Re: Show off your machining!

Quote:

Originally Posted by Adrian Clark (Post 1296439)

Those parts are a thing of beauty. What thickness of metal did you use? Looks like 3/8"?

Here's some of the various machining we did last build season, everything is .120" aluminum cut out using a laser.
These are parts for 1038's feeder system we cut out for them:
http://i.imgur.com/aKJhftH.jpg?1

This is a prototype uni-body chassis. It's a single piece of aluminum cut out and bent using an automatic break and welded with a robotic welder:
http://i.imgur.com/Dy47Hjw.jpg?1

And this is our 2013 bot towards the end of the build season, most of the machining was in the shooter, I couldn't find a picture of just the shooter only.
http://i.imgur.com/7ewsI3D.jpg?1

Akash Rastogi

14-10-2013 21:03

Re: Show off your machining!

Quote:

Originally Posted by Adrian Clark (Post 1296439)

Really neat looking sideplates you've got there!

Qbot2640

14-10-2013 21:33

Re: Show off your machining!

A frisbee shooter we built for the off season based on the awesome design by team 67:

SAM_0224 by Hotbotz 2640, on Flickr

Adrian Clark

15-10-2013 17:42

Re: Show off your machining!

Quote:

Originally Posted by BurkeHalderman (Post 1296459)

Those parts are a thing of beauty. What thickness of metal did you use? Looks like 3/8"?

Thanks! All the plate in those pics is 1/4".

Andrew Lawrence

15-10-2013 17:57

Re: Show off your machining!

Quote:

Originally Posted by Adrian Clark (Post 1296656)

Thanks! All the plate in those pics is 1/4".

Any reason for the custom 1/4" plate drivetrain? I've never seen one like it before. Worked beautifully for you guys.

Adrian Clark

15-10-2013 18:06

Re: Show off your machining!

Quote:

Originally Posted by Cory (Post 1295993)

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

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