GearHeads Forum

Hi John:

  Sorry to hear that. They had a $100 minimum way back when I bought an assortment.
The only important thing in the design is that it be a semi constant torque so that the
end speed of it is omewhat stable enough to allow the trigger to work at the speed it
develops during rotation. Its not a narrow range so I suspect almost any strong enough
spring would do. Im not sure who else sells such things though..
Ill have to research that for future.

Art
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I know this is more than a year since the last post, but I noticed the same problem with Vulcan not wanting to sell to end users (now they have a $200 minimum).

I wonder if anyone sorted out the spring specs to pick a replacement from McMaster-Carr?

The specs for the Vulcan spring are:

Part Number SV10G160
Torque ? 10% 4.17 in-lbs.
Thickness (in) 0.010"
Width (in) 0.500"
Length 160"
Turns 20
I.D. +-10% 1.01"
Storage Drum
1.17"
Output Drum 2.02"
Center to Center 2.25"

It doesn't look like McMaster-Carr has anything as long (160"), but a handful in the 30" - 60" +/- lengths, in the 4 +/- pound torque range.

What matters most in this type of design?

--Jon

Kinda figured, its likely why the tang on my spring is different. I bought a bag of them awhile back, just a mixture
of various strengths..

Art

Just for grins I called them.  High production volumes only, no interest in low volume sales, nor do they have any dealers who can supply a spring or two.  They suggest McMaster Carr, which I understand will now ship to Canada.

Kirk

Id be willling to do it from here Roger, but the cost of shipping from USA to here, then back to the USA is prohibitive, makes it a
better deal if someone in the US can do it.

Art

Vulcan Spring has the sv10g160 constant force spring for $10, but there is a $100 minimum (plus shipping). Do several people interested in building this ticker want to go in together to buy some springs?

Roger

>>I get vexed at myself when I cannot figure something out...


  Thats why its called Vexx..I too get vexxed when trying to figure out the tougher stuff..
lol

  Art

Art,

Vexx....sounds great....I really appreciate all your efforts....

I get vexed at myself when I cannot figure something out.....

Richard.........

Awesome.  Looking forward to Vexx.  I've played with all of Gearotic's features and tools and really dig it.  As far as what you've defined as Vexx there really isn't anything like it on the market that I know of.

Dan

Richard:

No problem, I know the challenge of building these things. You'll find though, as you go, the
shapes become obvious. If a magnet isnt strong enough, replace with another , or move to a position
where it has better attraction.  Orange wasn't made from strictly dxf's, I rough such things out, then
build and adjust till I see where the problems lie.

    I hope in future to give much better tools for figuring out such things. A new application has been started
with that aim in mind. It'll be awhile before "Vexx" is released in Gearotics package, but my aim is to
remove all the vector tools from Auggie and gearotic and place them in a MUCH better GUI and database
to allow kinetic designs to be more rapidly built and simulated. "Vexx" will be dedicated for vector art,
kinetics and their mechanization. 


Art