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Tracking jig

Posted: Fri Aug 19, 2011 7:26 am
by Declan_Burns
Here's a few photos of my jig. Adjustable screws on both sides so it can be used in tight spaces from either side.
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Sliding joint at the front
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Folds up nicely for storage.


Regards
Declan

Re: Tracking jig

Posted: Fri Aug 19, 2011 2:45 pm
by Ratbag

Re: Tracking jig

Posted: Fri Aug 19, 2011 9:17 pm
by MarkyB
Blimey! that looks professional, I'm planning to base mine around a broom handle!

Re: Tracking jig

Posted: Sat Aug 20, 2011 8:55 am
by Declan_Burns
It's actually very simple.
Here's a link to the bits and pieces-it like a newer Meccano.
http://products.alfer.com/en/Construction-Plans/
http://www.alfer.com/en/products/hardware.html

Regards
Declan

Re: Tracking jig

Posted: Sat Aug 20, 2011 4:55 pm
by bmcecosse
You really should only measure the front - then roll forward 1/2 turn - and measure the SAME rim points at the rear........ If you are pretty sure about the rims - then there won't be much wrong with your method. Test is - if you take 3 sets of measurements in a row - are they all the same ??

Re: Tracking jig

Posted: Sat Aug 20, 2011 8:32 pm
by les
It's toe in, not toes out! :D

Re: Tracking jig

Posted: Sat Aug 20, 2011 8:47 pm
by MarkyB
Who said otherwise?

Re: Tracking jig

Posted: Sun Aug 21, 2011 10:17 am
by taupe
Marky

Look at the pics :D :D :D

taupe

Re: Tracking jig

Posted: Sun Aug 21, 2011 5:59 pm
by MarkyB
OK, with a bit of squinting, I see what you mean.

Re: Tracking jig

Posted: Thu Sep 22, 2011 3:10 pm
by dunketh
Gotta be a way of doing this with them cheap laser pointer things - like the garages do.
Just need a mount for the laser pens on each wheel and a ruler to shine them at infront. Thered be a lot less fabrication involved in making frames etc.. Just a bit of board with some steel rules hot glued to it and two cheap laser pointers. :lol:

Re: Tracking jig

Posted: Fri Sep 23, 2011 9:28 am
by MarkyB
Just need a mount for the laser pens on each wheel
This is the tricky bit then as it needs to rest on the rim edges at the mid point, maybe some small rare earth magnets to hold and a pound shop spirit level to check it is parallel to the floor?

Re: Tracking jig

Posted: Sat Sep 24, 2011 2:07 am
by irmscher
just get the garage to check free :lol:

Re: Tracking jig

Posted: Sat Sep 24, 2011 8:02 am
by MarkyB
Free!
I like the idea but doubt there is a garage in London where the concept would be recognised :)