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builds:invisible_jet
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This shows you the differences between two versions of the page.
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builds:invisible_jet [2018/10/22 15:45] prysk |
builds:invisible_jet [2019/01/27 14:22] (current) prysk |
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| * Ground clearance: ugh | * Ground clearance: ugh | ||
| * Going 15mph in something you built is both fun and terrifying | * Going 15mph in something you built is both fun and terrifying | ||
| + | * Worry about all the things breaking, not just the steering, or the frame | ||
| The biggest issue we ran in to was that the gearbox was still the bench test prototype: the gearbox plates were 1/8" 6061, and the jack shaft bearing blocks were Markforged plastic.[[https://www.youtube.com/watch?v=WXhJ0nLqzSs|This led to multiple chain issues and ended with a bearing block melting into a bearing.]] | The biggest issue we ran in to was that the gearbox was still the bench test prototype: the gearbox plates were 1/8" 6061, and the jack shaft bearing blocks were Markforged plastic.[[https://www.youtube.com/watch?v=WXhJ0nLqzSs|This led to multiple chain issues and ended with a bearing block melting into a bearing.]] | ||
| Line 114: | Line 115: | ||
| {{:builds:43951962_314718855974771_727734620069560320_n.jpg?600|}}{{:builds:44027586_281460745828650_2761882284515655680_n.jpg?600|}} | {{:builds:43951962_314718855974771_727734620069560320_n.jpg?600|}}{{:builds:44027586_281460745828650_2761882284515655680_n.jpg?600|}} | ||
| + | |||
| + | (This is how David gets to work in the morning) | ||
| + | |||
| + | __**October 20-21**__ | ||
| + | |||
| + | No work | ||
| + | |||
| + | __**October 27-28**__ | ||
| + | |||
| + | Replaced the centrifugal clutch with a straight sprocket: wanted to get some testing in on difference between a centrifugal clutch and a direct connection. There's a lot more cogging than we'd like, but this might be due to not having the controller parameters right. | ||
| + | |||
| + | In testing, we also came across another issue: mainly that we forgot to put a ground lead in the CAN cable between controllers, and the back EMF from one managed to blow the CAN chips on both up when trying to manually push it backwards. New controller chips have been ordered, and a ground lead has been installed. This is also a good excuse for me to just make the heatsink I've been planning for the VESC's for 3 weeks now. | ||
| + | |||
| + | {{:builds:img_8156.jpeg?600|}} | ||
| + | |||
| + | __**November 3-4**__ | ||
| + | |||
| + | No Work | ||
| + | |||
| + | __**November 10-11**__ | ||
| + | |||
| + | Finally got the motor controllers fixed and back in. Took the time to make the heatsink, it seems to be working nicely! Going to have to figure out a better retention method, a bit of VHB tape right now to hold it down for testing. | ||
| + | |||
| + | {{:builds:img_8259.jpeg?600|}} | ||
| + | {{:builds:img_8264.jpeg?600|}} | ||
| + | {{:builds:img_8266.jpeg?600|}} | ||
| + | |||
| + | __**November 17-18**__ | ||
| + | |||
| + | No Work | ||
| + | |||
| + | __**November 24-25**__ | ||
| + | |||
| + | New body concept and design work | ||
| + | |||
| + | __**December 1-2**__ | ||
| + | |||
| + | More concept and design work with some bodywork manufacturing starting | ||
| + | |||
| + | __**Build on hold until end of FRC season**__ | ||
| + | |||
| + | Good luck to all the teams! | ||
| + | |||
| + | {{:builds:kart_2018_hopefully_not_broken_v11.png?600|}} | ||
builds/invisible_jet.1540241115.txt.gz ยท Last modified: 2018/10/22 15:45 by prysk
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