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Custom Happ Trackball?

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yotsuya:

Thinking about it, what Randy says makes sense. I guess Chance gets to be the guinea pig.

DeLuSioNal29:

Hey ChanceKJ, what size did you end up getting for the 3" replacement?  They have a few different options on that site in mm.

Also, do they carry anything for 2 1/4" trackball replacements?

DeLuSioNaL29

PL1:


--- Quote from: DeLuSioNal29 on July 27, 2014, 03:29:57 pm ---Hey ChanceKJ, what size did you end up getting for the 3" replacement?  They have a few different options on that site in mm.

Also, do they carry anything for 2 1/4" trackball replacements?

DeLuSioNaL29

--- End quote ---
76mm balls are about 3" (76.2mm) so either this one (non UV) or this one. (clear under normal light, "Mountain Dew" under UV)

For a 2-1/4" replacement, you would need a 57.15mm -- the closest they have is 65mm. (2.5591")


Scott
     * This post brought to you by one of those interactive websites that convert inches to mm and vice-versa. :duckhunt

ChanceKJ:

So far so good. I've learnt that contact jugglers are pretty anal about making sure the ball is as clear as it can be. So scratch wise after playing with it in the enclosure I havnt had any issues. I'll keep my eye on the ball... So to speak.

Scott's right it was the 76mm. I didn't have a scale to weigh it but it feels extremely close. And size is an exact match according to my caliper.

yotsuya:


--- Quote from: ChanceKJ on July 27, 2014, 04:32:14 pm ---So far so good. I've learnt that contact jugglers are pretty anal about making sure the ball is as clear as it can be. So scratch wise after playing with it in the enclosure I havnt had any issues. I'll keep my eye on the ball... So to speak.

Scott's right it was the 76mm. I didn't have a scale to weigh it but it feels extremely close. And size is an exact match according to my caliper.

--- End quote ---

Test it on a game like Missile Command and see how much spin you get after you release the ball. A game like Centipede is much more precise than Missile Command, especially if you do the "toxic cloud" strategy.

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