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Backtrack 2 True, double tire truer


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#1 MSwiss

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Posted 03 November 2016 - 06:27 PM

The engineer/basement machinist that helped out, Geary Gaspord, with this project has "re-retired", and production has started up again.
 

Available in both AC (no power supply needed) and DC (very torquey, but motor draws 7-8 amps)

 

Now comes standard with a very nice calibration system.

 

See post #4 for an explanation.
 
$380 plus shipping.

New 2 True.jpg


Mike Swiss
 
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990)
Eight-time G7 King track single lap world record holder
17B West Ogden AveWestmont, IL 60559, ( 708) 203-8003
mikeswiss86@hotmail.com (also my PayPal address) 
Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516
Make checks out to Chicagoland Woodworking, Inc.





#2 MSwiss

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Posted 03 November 2016 - 09:45 PM

For those not familiar with the unit, along with the larger diameter, standard size, sanding drums, the beauty of it is the ease of adjustment.
 
Geary uses two identical size drums to set the initial adjustment.
 
If any fine tuning is needed, to get the left and right sides identical, it's simple. Just loosen the two bolts holding the carriage in place.
 
That carriage pivots on the left.
 
On the right side of the unit, with your tire wrench, you turn the angled set screw in or out, until the unit is perfectly parallel to the rotating drums.
 
20161103_212945-1.jpg

The left side hold down screw, with the carriage pivot to the left of it.
 
20161103_211202-1.jpg

The right side hold down screw, with the carriage pivot adjustment set screw.


Mike Swiss
 
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990)
Eight-time G7 King track single lap world record holder
17B West Ogden AveWestmont, IL 60559, ( 708) 203-8003
mikeswiss86@hotmail.com (also my PayPal address) 
Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516
Make checks out to Chicagoland Woodworking, Inc.


#3 MSwiss

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Posted 19 January 2017 - 10:01 PM

I just tried it with a threaded axle off of an old Dynamic Dyna-flex chassis, euipped car, I bought awhile back.
 
I did the switch over, in literally about 10 seconds, from the Koford 1/8 axle that was in my personal 2 True.
 
The threaded axle measured about .123", compared to .124", for the Koford 1/8", so you can feel a minuscule amount of play.
 
20170119_205221-1.jpg


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Mike Swiss
 
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990)
Eight-time G7 King track single lap world record holder
17B West Ogden AveWestmont, IL 60559, ( 708) 203-8003
mikeswiss86@hotmail.com (also my PayPal address) 
Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516
Make checks out to Chicagoland Woodworking, Inc.


#4 MSwiss

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Posted 05 May 2017 - 07:36 PM

We've had enough demand for calibration for this unit, that Geary and his machinist friend, have come up with a nice system.
 
It is standard equipment, and the truers are now $380.
 
20170323_184515-1.jpg

You'll have a letter as a reference, and a 1-5, number suffix.

20170323_193109-1.jpg

If you true in a fairly large diameter range, you'll add a number prefix, corresponding to these height lines (which are much easier to spot in person)


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Mike Swiss
 
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990)
Eight-time G7 King track single lap world record holder
17B West Ogden AveWestmont, IL 60559, ( 708) 203-8003
mikeswiss86@hotmail.com (also my PayPal address) 
Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516
Make checks out to Chicagoland Woodworking, Inc.


#5 MSwiss

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Posted 21 December 2017 - 01:39 PM

Cleaned up of old, non-pertinent posts, and TTT.


Mike Swiss
 
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990)
Eight-time G7 King track single lap world record holder
17B West Ogden AveWestmont, IL 60559, ( 708) 203-8003
mikeswiss86@hotmail.com (also my PayPal address) 
Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516
Make checks out to Chicagoland Woodworking, Inc.


#6 Racer36

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Posted 21 December 2017 - 02:53 PM

The link to the original ad on the Nov 3, 2016 post does not work now. Can you repost that?


Dennis Dominey

Lifelong half-assed slot racer


#7 Mike K

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Posted 21 December 2017 - 02:54 PM

Is there an upgrade kit for the calibration unit?


So much DRAMA for such small cars....
Mike Kravitz

Don't DQ me for having the wrong SHADE of orange on my McLaren... after all, it's ONLY a toy car!!!


#8 MSwiss

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Posted 21 December 2017 - 03:19 PM

The link to the original ad on the Nov 3, 2016 post does not work now. Can you repost that?

No. I meant to check the link and edit it out, if necessary.

 

I've done that now.

 

It can't be found because Cheater culled out old ads, without telling me, ahead of time.

 

Is there an upgrade kit for the calibration unit?

It can be upgraded, but a kit is not available.

 

It has to be sent (or given) to Geary, as it requires drilling new holes, for the new paddle stop.

 

PS - also, one of the old posts, that got deleted, was the one where I mentioned Dale Ryan / Triggerman, did a Knob Job for these.

 

He did, but doesn't anymore.


Mike Swiss
 
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990)
Eight-time G7 King track single lap world record holder
17B West Ogden AveWestmont, IL 60559, ( 708) 203-8003
mikeswiss86@hotmail.com (also my PayPal address) 
Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516
Make checks out to Chicagoland Woodworking, Inc.


#9 Racer36

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Posted 21 December 2017 - 03:27 PM

Cheater, Cheater, Cheater......tsk tsk tsk......


Dennis Dominey

Lifelong half-assed slot racer


#10 triggerman

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Posted 21 December 2017 - 06:08 PM

No. I meant to check the link and edit it out, if necessary.
 
PS - also, one of the old posts, that got deleted, was the one where I mentioned Dale Ryan / Triggerman, did a Knob Job for these.
 
He did, but doesn't anymore.


Adding the Knob Job style micrometer dial and screw was easy, although it required a different size screw and reversed dial.
Getting the two tires to match diameters when creating a chart was EXTREMELY DIFFICULT. Sometimes I could match diameters at the high range of the scale only to have a mismatch at the low end.
Dale Ryan

#11 MSwiss

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Posted 21 December 2017 - 06:13 PM

And they were how far off?


Mike Swiss
 
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990)
Eight-time G7 King track single lap world record holder
17B West Ogden AveWestmont, IL 60559, ( 708) 203-8003
mikeswiss86@hotmail.com (also my PayPal address) 
Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516
Make checks out to Chicagoland Woodworking, Inc.


#12 triggerman

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Posted 21 December 2017 - 06:14 PM

I suppose I should clarify that the above post does not reflect on the overall quality of the Back Track unit. I was very impressed with the design and workmanship. I was especially fond of the adjustment method for matching diameters from side to side. Another plus was the AC motor. Swapping the grinding/sanding drums is a plus too.
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Dale Ryan

#13 triggerman

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Posted 21 December 2017 - 06:16 PM

And they were how far off?


Only a few thousandths which might satisfy most but when I charge someone to make achart I like to be more accurate than that.
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Dale Ryan





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