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Jig wheels - anyone making any that are round?


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#26 James Grandi

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Posted 08 February 2017 - 08:09 PM

GVP,

When I have 3-4 grand I can afford to spend on a lathe, I will absolutely take liberty to make my own - til then, I'll probably ask if someone else already makes them first lol.

W.J., it's not a question of tolerance - the PSC blocks are definitely accurate. I just noticed a few checks being done in Tony's chassis video that were easily performed with the round wheels he has - which can't be done in the same manner with the square blocks. And I like the extra room that a round wheel allows, as it can get pretty tight up front when building with certain chassis components or some of the more intricate scratchbuilt rail designs.
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#27 Bill from NH

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Posted 08 February 2017 - 08:40 PM

With round jig wheels, you don't have to be constantly looking to see if you have the right surface on the jig. You also don't have to look to make sure both sides are set for the same diameter wheel. I use a set of the old Champion red anodized jig wheels. I had a friend cut them down in the '70s and sleeve them for 3/32" axles...
 
James, thanks for the tipoff that the Tony P. build videos were loaded on YouTube. I watched most of them this afternoon. I have to admit, I'd be lying if I said I didn't learn a few things. :)
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#28 MSwiss

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Posted 08 February 2017 - 11:33 PM

What's a good dia. to make rear round jig wheels?

 

.710" ?

 

Or smaller?

 

For fronts?


Mike Swiss
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Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
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Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516


#29 wbugenis

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Posted 09 February 2017 - 10:46 AM

Seems to be a trend here.
 
Racers and manufacturers alike should get and learn to use a set of v-blocks and a dial indicator (low $$ on eBay).
 
TIR (total indicated run-out) will always be important on anything rotating on an axis (wheels, gears, axels, armatures, beaing and magnet installation slugs, jig wheels, etc.).
 
Stating TIR as 0.002" is a meaningful comment - "looks roundish" is not meaningful or useful.
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#30 Phil Hackett

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Posted 09 February 2017 - 12:10 PM

Anyone making square axles?

 

Yeah... you think this is funny?

 

I know of an engineer that made triangular axles, which had just enough of the axle OD to work properly. Except they didn't... for a very not obvious reason...


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#31 MSwiss

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Posted 09 February 2017 - 12:39 PM

Phil,

 

If it's not an obvious reason why don't you go ahead and tell us.


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 G7 main appearances
Eight-time G7 King track single lap world record holder

17B West Ogden Ave Westmont, 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


#32 gc4895

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Posted 09 February 2017 - 01:22 PM

I have the Precision jig "squares." They work - but, honestly, I wish I still had my original Champion jig wheels from the '60s. 

 

The precision squares are unquestionably precise in terms of size. They are also too light (easily disturbed or moved or displaced such that they sit on the wrong side!), too thick (take up too much space on the jig), and critically for me anyway - have no set screws so they can't be fixed in place. I have replaced them with Sonic metal gears that I find are much more friendly to use. Sadly, these metal gears are no longer available but I have a few left-overs.   

 

I actually think there is a market (albeit small because we are talking slot cars here!) for well made, well thought-out jig wheels. 


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#33 gotboostedvr6

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Posted 09 February 2017 - 02:26 PM

It's impossible to get gfears to be perfectly level if you're using them as jig wheels. If you use the set screw to hold them in place the misalignment will be even worse.
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#34 Zippity

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Posted 09 February 2017 - 02:32 PM

Care to explain in more detail?
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#35 Bill from NH

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Posted 09 February 2017 - 02:44 PM

Old Fass brass spurs, turned to the proper diameter, make good jig wheels., Some have a 3/32" bore, others have a 1/8" bore with a machined reducer for 3/32".


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#36 MSwiss

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Posted 09 February 2017 - 02:54 PM

As already mentioned, Parma crown gears, turned on a tire truer, probably work good enough.

IIRC, if you use a 30t, and mark the contact surface with a Sharpie, chances are pretty good you'll get the whole diameter to clean up, and still be usable Retro sizes.
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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 G7 main appearances
Eight-time G7 King track single lap world record holder

17B West Ogden Ave Westmont, 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


#37 Don Weaver

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Posted 09 February 2017 - 04:29 PM

I made mine from Weldun anodized aluminum gears turned to size. To solve the off-center created by set screws their taper lock gears would probably be the best.


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#38 kvanpelt

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Posted 09 February 2017 - 04:57 PM

I've done a search but can't seem to find Tony's builds on YouTube. Would someone care to share that link? 



#39 grooverunner

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Posted 09 February 2017 - 05:13 PM

Here you go, Kevin.
 
Yonyp chasis builds on YouTube
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#40 kvanpelt

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Posted 09 February 2017 - 05:19 PM

Thank you, Ken!
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#41 S.O. Watt

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Posted 09 February 2017 - 05:33 PM

I like my round Duffy Built jig wheels and his accompanying axle jig bushings, all made out of stainless (as are the longgg axles he supplied).
 
The narrower round jig wheels allow better access with a soldering iron for me.
 
Old gears do work just fine if you have access to a tire truer or even a drill motor. Just don't overthink it...
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#42 tonyp

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Posted 10 February 2017 - 07:04 AM

I still use my Duffy bushings they are great. Unfortunately I lost one of my rear jig wheels. It will show up eventually.

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#43 gotboostedvr6

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Posted 10 February 2017 - 08:48 AM

Underestimating the importance of the little things is a good way to fund my race bucks stash.
Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same, or one day we will spend our sunset years telling our children and our children's children what it was once like in the United States where men were free. - Ronald Regan #40 (1911 - 2004)

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#44 MSwiss

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Posted 10 February 2017 - 10:05 AM

How many dozen races have you won in a row? LOL.


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 G7 main appearances
Eight-time G7 King track single lap world record holder

17B West Ogden Ave Westmont, 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


#45 wbugenis

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Posted 10 February 2017 - 10:38 AM

Dave is a pretty dominant racer at his home raceway. Holds lots of track records.
 
Helps local kids but thrashes the adults who don't put as much work into their cars as he.
 
2015 (I believe) Group 10 USRA (4 inch NASCAR) champion.
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#46 MSwiss

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Posted 10 February 2017 - 10:53 AM

Bill,

By the numerous times he has reminded other posters, here and on OWH, believe me, I'm fully aware of his resume.

I'm just highly entertained by his posts.

Having plenty of confidence and swagger certainly help winning slot car races, but I think he is the only person I have ever seen describe his own work as impeccable.
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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 G7 main appearances
Eight-time G7 King track single lap world record holder

17B West Ogden Ave Westmont, 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


#47 wbugenis

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Posted 10 February 2017 - 11:26 AM

Lots of bad behaviour from where I sit in slot car raceways -  most a lot worse than anything from Dave.
William Bugenis

#48 MSwiss

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Posted 10 February 2017 - 11:34 AM

I don't remember saying or suggesting anything about bad behavior.

Just a little heavy on the braggadocio.
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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 G7 main appearances
Eight-time G7 King track single lap world record holder

17B West Ogden Ave Westmont, 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


#49 wbugenis

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Posted 10 February 2017 - 11:44 AM

It's a matter of perspective and degree.
William Bugenis

#50 gotboostedvr6

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Posted 10 February 2017 - 05:03 PM

To be a successful Slot builder/ Racer one should strive for perfection, falling short of perfection is human and expected.   If you set yourself up for failure your work product will be flawed and your technique will never improve.

 

Bill,

Though I do often respect his opinion, I've found that arguing with Mike is an exercise in futility.


Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same, or one day we will spend our sunset years telling our children and our children's children what it was once like in the United States where men were free. - Ronald Regan #40 (1911 - 2004)

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