Forum: Technical Discussion
Today, 04:53 PM
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Replies: 16
Views: 650
Re: Variable Speed Gearboxes?
Variable pulley? Tensioning requires a system with a spring or multiple springs. Mr. oscillation can come to the party very easily. We have a CVT swerve module built and tested as a single unit. Do...
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Forum: General Forum
Yesterday, 10:11 PM
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Replies: 9
Views: 892
Re: findrobotparts.com Updates
One category that is missing and could be a real help to teams is cameras. A list of units that have proven to be reliable and seen success for a season would be a real help as more and more teams...
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Forum: Sensors
12-10-2016, 07:40 AM
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Replies: 4
Views: 403
Re: New 1200mm LIDAR -- VL53L0X
Early this fall our team characterized this sensor. We purchased one from Pololu. We could never get the 2 ST Micro break outs to work. It does see Poly and AL diamond plate which give the Sharp IR...
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Forum: Pneumatics
12-04-2016, 06:57 AM
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Replies: 48
Views: 4,891
Re: 1.1 Pump (am-3227) Really an improvement?
We just put 4 bolts and zip tied around them. Sounds like a kludge , but it works. Best to have the fan on top. That's the hottest part. This would be a good CAD - 3d printing project to make a clip...
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Forum: Pneumatics
12-03-2016, 07:17 AM
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Replies: 48
Views: 4,891
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Forum: Programming
11-15-2016, 07:28 AM
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Replies: 31
Views: 2,834
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Forum: Off-Season Events
11-08-2016, 07:27 AM
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Replies: 19
Views: 2,727
Re: Ramp Riot 2016: The Official Thread
Way back in ancient times, my son came home and asked if he could join the robot team. Said yes, signed the papers and the next thing I know I'm driving some students up the turnpike to some...
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Forum: Off-Season Events
11-01-2016, 07:40 AM
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Replies: 19
Views: 2,727
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Forum: Fundraising
10-31-2016, 08:21 AM
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Replies: 34
Views: 2,169
Re: Acquiring a 3D Printer?
Isn't FRC about engineering? So why buy a printer when you can design and build one? Our team did this over the summer and fall. The goal was to run the CAD team through the design process. This was...
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Forum: Technical Discussion
10-26-2016, 08:06 AM
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Replies: 36
Views: 3,250
Re: Reliability of Pixy Camera?
Ok, I think we may have to revisit the pixy cam. Our judgement may have been premature. We went with grip on a Pi2b and an IP camera. The programmers are working on Opencv on a PI3 with IP camera and...
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Forum: Technical Discussion
10-25-2016, 07:34 AM
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Replies: 36
Views: 3,250
Re: Reliability of Pixy Camera?
To teams that got the Pixy to work. Where did you shoot from? Did you shoot from the defenses? Did you have to be centered and perpendicular to the target? What did you do about getting 2 targets...
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Forum: Technical Discussion
10-24-2016, 07:10 AM
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Replies: 36
Views: 3,250
Re: Reliability of Pixy Camera?
My opinion is that the Pixycam would probably be better on a FTC - VEX scale field. Lighting variations and FRC field scale gave it problems when we tested it. In my opinion it might be better to...
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Forum: Technical Discussion
09-13-2016, 07:46 AM
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Replies: 11
Views: 885
Re: Driving a Bipolar stepper with 2 jaguars
What about micro stepping? Stepper drivers chop to control current. Nema 17's run OK at 12 volts but perform better at 24 volts. Nema 23's perform much better at 24 volts and more for the larger...
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Forum: Extra Discussion
09-09-2016, 07:59 AM
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Replies: 46
Views: 3,327
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Forum: Sensors
09-01-2016, 07:57 PM
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Replies: 3
Views: 322
Re: CUI Encoders
We have used the AMT102 and 103 encoders for 3 years now. For 2016 we mounted on on a vex prow gear box using 4-40 screw. Drilling and tapping the piece of plastic is tedious. They have worked well....
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Forum: General Forum
08-28-2016, 02:42 PM
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Replies: 122
Views: 11,288
Re: Pockets on Women's Pants
Some of the women I know who work construction like the pants from Aramark
https://shop.aramarkuniform.com/home
The girls might have to choose between making a Fashion statement and comfortable,...
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Forum: Technical Discussion
08-02-2016, 09:44 AM
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Replies: 11
Views: 2,025
Re: X-Carve Upgrades
The shapeoko uses a more ridged x axis extrusion than the x carve. It still suffers from delrin wheel flex. It can cut Al just don't try to hog. Look at the video about trochodial milling I posted....
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Forum: Technical Discussion
08-02-2016, 08:00 AM
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Replies: 11
Views: 2,025
Re: X-Carve Upgrades
Last December, I bought a 500 X-Carve for the team to use. It's been a learning experience. The X-carve is a soft machine. It is marginally capable of cutting AL in it's stock configuration. There...
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Forum: Off-Season Events
07-15-2016, 08:22 AM
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Replies: 195
Views: 18,042
Re: IndyRAGE - All-Girls Comp+ - October 1
Discrimination is discrimination. To exclude a group based upon their sex, sexual orientation, culture or religion is discrimination. This is a sexist discriminating event. Further, it may actually...
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Forum: Off-Season Events
06-23-2016, 06:58 AM
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Replies: 18
Views: 4,818
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Forum: General Forum
06-20-2016, 06:40 PM
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Replies: 5
Views: 1,301
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Forum: Extra Discussion
06-18-2016, 07:20 AM
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Replies: 30
Views: 2,747
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Forum: General Forum
06-15-2016, 04:45 PM
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Replies: 13
Views: 1,980
Re: Why do women leave engineering? (MIT Article)
If I have said it once , I've said it 10,000 times. The girls have to learn how to play with the boys and more importantly, the boys have to learn how to play with the girls. This can't happen unless...
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Forum: General Forum
05-31-2016, 02:17 PM
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Replies: 32
Views: 3,590
Re: Is Magnesium ok?
If you build with the better AL's you are already using it. It's one of the components of AL alloys.
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Forum: Technical Discussion
05-30-2016, 11:36 AM
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Replies: 77
Views: 8,412
Re: Is Welding Worth It?
We weld, rivet, bolt, bond our robot assembles. Isn't engineering about evaluating and choosing the best method to solve problems?
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One of our electrical engineers would bring his kids in every so often, so they could actually see their dad during build season. - Karthik [more] 
