Official Baja SAE Forums Homepage
Forum Home Forum Home > General > Lounge
  New Posts New Posts RSS Feed - Jigging we just tried
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Jigging we just tried

 Post Reply Post Reply
Author
Message
superdupercolin View Drop Down
Bolt Sorter
Bolt Sorter


Joined: May/31/2014
Status: Offline
Points: 16
Post Options Post Options   Thanks (0) Thanks(0)   Quote superdupercolin Quote  Post ReplyReply Direct Link To This Post Topic: Jigging we just tried
    Posted: Mar/29/2015 at 1:13am
Anyone else try this? It works really well but took forever to setup.

 
Back to Top
Nate View Drop Down
Welding Master
Welding Master


Joined: Jun/16/2014
Location: Ames, IA
Status: Offline
Points: 285
Post Options Post Options   Thanks (0) Thanks(0)   Quote Nate Quote  Post ReplyReply Direct Link To This Post Posted: Mar/29/2015 at 2:17pm
On an extreme scale, yes. We also do our A-arms via a similar setup. Intersecting 2D laser-cut sheet metal seems to be a breeze to assemble so it doesn't take so long.


Iowa State University Cyclone Racing 2013 - 2016
Tech Director, DAQ, Media, Manufacturing, Radios
2016 - S&T, Maneuv, & Endurance Driver
"Because BAJA" "Because RACECAR"
Back to Top
superdupercolin View Drop Down
Bolt Sorter
Bolt Sorter


Joined: May/31/2014
Status: Offline
Points: 16
Post Options Post Options   Thanks (0) Thanks(0)   Quote superdupercolin Quote  Post ReplyReply Direct Link To This Post Posted: Mar/29/2015 at 3:00pm
Do you have any more pictures of the jigging you used? That looks pretty wicked
Back to Top
Nate View Drop Down
Welding Master
Welding Master


Joined: Jun/16/2014
Location: Ames, IA
Status: Offline
Points: 285
Post Options Post Options   Thanks (0) Thanks(0)   Quote Nate Quote  Post ReplyReply Direct Link To This Post Posted: Mar/29/2015 at 3:20pm
http://www.facebook.com/IowaStateBaja there might be some more on there... and give us a "like" while you're at it.


Here was the model.



Basically we made a 4x8 flat aluminum jigging table. Then we used sheet metal to locate critical points (first the roll hoop so it was square. Then things like the FBMs and Lower frame rails. To give it rigidity and keep all 2D parts, we intersected everything 90 degrees when we could. I used a lot of "intersection curves" to determine the correct dimensions. We also lightened things up when possible. The laser takes no time to cut these out.

Here's a condensed drawing for some of the parts.
uploads/2424/Sheet_Metal_Jig_Parts.PDF
Iowa State University Cyclone Racing 2013 - 2016
Tech Director, DAQ, Media, Manufacturing, Radios
2016 - S&T, Maneuv, & Endurance Driver
"Because BAJA" "Because RACECAR"
Back to Top
ankitk View Drop Down
Welding Master
Welding Master


Joined: Jul/17/2013
Status: Offline
Points: 108
Post Options Post Options   Thanks (0) Thanks(0)   Quote ankitk Quote  Post ReplyReply Direct Link To This Post Posted: Apr/19/2015 at 4:08pm
Would teams be kind enough to upload a few images of the fixtures they have used? Last time our team used wooden fixtures. While the 2D fixtures were accurate, cheap and quite helpful, the 3D ones were a PITA and pretty inaccurate. A few photographs and an explanation (if needed) would help us get some ideas and do things right this time
Back to Top
Rollie View Drop Down
Welding Master
Welding Master
Avatar

Joined: Nov/07/2012
Location: FH, MI
Status: Offline
Points: 133
Post Options Post Options   Thanks (0) Thanks(0)   Quote Rollie Quote  Post ReplyReply Direct Link To This Post Posted: Apr/20/2015 at 8:33am
We have quite a few pictures on our facebook page:
 https://www.facebook.com/pages/Kettering-University-Baja-SAE/441336775898625?ref=hl

We used a 0.25" 4x8' sheet with water-jet holes and then tapped them for our multiple fixtures. The main constraints were d-shaped shaft collars that were mounted to the plate. All of our tubes are laser-cut so assembly is crazy simple. 3 day frame!



Zac Watts
2013-2015 Kettering University
2016-* KU Industry Advisor
Team Captain
Design Engineer at Pratt & Miller Engineering
Back to Top
jarmumd View Drop Down
Organizer
Organizer
Avatar

Joined: Oct/17/2008
Location: Huntsville, AL
Status: Offline
Points: 178
Post Options Post Options   Thanks (0) Thanks(0)   Quote jarmumd Quote  Post ReplyReply Direct Link To This Post Posted: Apr/20/2015 at 1:21pm
It's an investment, but we (Auburn) has been using optical tables for a decade now.  These have hundreds of 1/4 threaded holes spaced an inch apart.




Auburn Baja 03-05

Masters involving dynamic simulation of baja car and driver

SAE Auburn Race Organizer 06, 09, 12, 15

SAE Birmingham Race Organizer 11

National Tech. Inspector 07-15
Back to Top
ankitk View Drop Down
Welding Master
Welding Master


Joined: Jul/17/2013
Status: Offline
Points: 108
Post Options Post Options   Thanks (0) Thanks(0)   Quote ankitk Quote  Post ReplyReply Direct Link To This Post Posted: Apr/23/2015 at 10:33am
Thank you for the highly helpful images. I don't we would be able to afford an optical table at the moment. Rollie's idea of waterjetting holes is a nice alternative to an optical table. We mainly had issues in the SIM members. Sim was bend at one end (rrh end) and was made in two parts. One from the FBM. Pictures attached below. 

http://tinypic.com/r/6syp6s/8

http://tinypic.com/r/2hftnv9/8
Back to Top
Rollie View Drop Down
Welding Master
Welding Master
Avatar

Joined: Nov/07/2012
Location: FH, MI
Status: Offline
Points: 133
Post Options Post Options   Thanks (0) Thanks(0)   Quote Rollie Quote  Post ReplyReply Direct Link To This Post Posted: Apr/23/2015 at 10:35am
If you look at my second to last picture you could use a similar setup with the square tube and shaft collars to hold those tubes where you want them. 
Zac Watts
2013-2015 Kettering University
2016-* KU Industry Advisor
Team Captain
Design Engineer at Pratt & Miller Engineering
Back to Top
ankitk View Drop Down
Welding Master
Welding Master


Joined: Jul/17/2013
Status: Offline
Points: 108
Post Options Post Options   Thanks (0) Thanks(0)   Quote ankitk Quote  Post ReplyReply Direct Link To This Post Posted: Apr/23/2015 at 10:59am
Some images of the fixtures we used last year. Tubes coped manually, frame welded manually. Entire car assembled in 10 days. Our material arrived super late last year(late by over 3 months)

http://tinypic.com/r/209rgqe/8

http://tinypic.com/r/vq1edh/8

http://tinypic.com/r/2w6yro3/8

http://tinypic.com/r/2r41jis/8

http://tinypic.com/r/jrtmw2/8




Back to Top
nikhilb View Drop Down
Double Secret Probation
Double Secret Probation


Joined: Aug/15/2019
Status: Offline
Points: 2
Post Options Post Options   Thanks (0) Thanks(0)   Quote nikhilb Quote  Post ReplyReply Direct Link To This Post Posted: Aug/15/2019 at 12:37am
looking at your design it seems to me that the sheets used may flex. How did you controlled that and what was the thickness of the sheets used?

Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down



This page was generated in 0.172 seconds.