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 It's like FIRST saying "Well it was too hard, so we give up. Lets give the kids something easier to do." How is that supposed to inspire kids? - Mike [more] |
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| It's like FIRST saying "Well it was too hard, so we give up. Lets give the kids something easier to do." How is that supposed to inspire kids? - Mike [more] |
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#1
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pic: dual speed gearbox
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#2
08-09-2003, 10:11
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Andy,
Very nice! I was at River Rage, and I wish I knew you were using this so I could take a look! How does the square dog work out? 229 is currently developing our next generation gearbox, and we're looking at using a Techno-Style dog shifter. How do you think this compares? Thanks, John
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#3
08-09-2003, 11:06
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I Love! the square Dog, Very simple,small, and cheap, i may have to steal it
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#4
08-09-2003, 11:07
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Thanks John,
The square dog works very well. I had limited air pressure during the event due to flexing in the plywood base. The drivers said they needed to come almost to a stop to shift but they loved the dual speed option. I was going to introduce myself to you but had lost my voice by the end of the day. You and your team did a fantastic job reffing. Thanks again, Andy Brockway BTW we will be at Bash@the Beach Sept 20, I will also have our original gearbox for everyone to see. Last edited by Andy Brockway : 08-09-2003 at 11:12.
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#6
08-09-2003, 20:50
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Wow, congratulations on a really great job to team 716. That gearbox looks really compact and could be very easily lightened 226 style. It also looks great!
Cory
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#7
08-09-2003, 20:56
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Quote:
It looks really awesome! Congratulations! For a little reference, are the outer plates 1/4"?
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#8
08-09-2003, 22:01
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What are the ratios on that? and what size is everything?
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#9
09-09-2003, 08:58
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I am planning a white paper detailing the shifter mechanism within the next two months. I will include gear ratios and main plates in the write up.
In the meantime, The approximate weight without motors is 5 lbs. This is only an estimate as I forgot to do a weight check. The output speed at the shaft is 162/684 rpm for low/high. We reused the gear on the CIM and the sprockets from the output so this dictated some of the ratio decisions. This box is 2-5/16" wide by 2-3/4" tall. I am guessing it to be about 7" long, I left the file at home. The plates are 1/4", the ouput bearings are not flanged so the button heads keep them in. I have been running flat out the last few weeks at work so I am a little behind on everything. I will answer questions as fast as I can.
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#10
07-10-2003, 15:04
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White Paper Posted
I uploaded the white paper for this gearbox today. Detail drawings for the shift mechanism are included. The parts can all be made on a maual lathe and mill although having digital readouts is recommended.
I appreciate any feedback. Andy
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