Forum: Technical Discussion
03-02-2015, 02:49 PM
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Replies: 30
Views: 4,073
Re: What robot are you most proud of?
I mentored Team 975 from 2002 to 2006. Our 2006 bot was the best, even got the Motorola Quality Award at the VCU regional.
Compact 4 wheel drive, tons of traction and power, picked up and shot...
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Forum: Chit-Chat
01-02-2014, 04:36 PM
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Replies: 10
Views: 1,097
Re: Team Traditions
Team 975's first robot was mostly plywood, so the mantra was "Wood is good". Later robots were metal, but we always looked to put on a piece of wood, somehow.
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Forum: General Forum
09-20-2012, 01:16 PM
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Replies: 35
Views: 6,777
Re: Found Source: 3/8" 7075 Hex
RC, make sure you get the material "certs" and the like from the producer. If you need to sell some off outside the FIRST community, that could be helpful. I wouldn't be surprised if some of the...
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Forum: General Forum
09-18-2012, 12:37 PM
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Replies: 41
Views: 11,776
Re: Loss of Beloved FIRST Family Member
Chuck,
Please pass my condolences on to the Melton family. I'm sure your team will provide all the support they can, as did Team 975 when we lost Karl.
- Dick
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Forum: Technical Discussion
09-18-2012, 12:18 PM
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Replies: 8
Views: 3,194
Re: friction on a threaded rod
This might be useful: www.eng.auburn.edu/users/marghitu/Screws.pdf
For other than a square thread, "The angle increases the frictional force by the wedging action of the threads".
Also see...
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Forum: General Forum
08-06-2012, 02:37 PM
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Replies: 32
Views: 5,341
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Forum: Technical Discussion
07-28-2012, 10:29 AM
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Replies: 31
Views: 4,850
Re: Tap Magic?
I've been wanting to try Anchorlube G-771 for tapping. It supposedly works well and is not as nasty as some other types.
http://www.anchorlube.com/anchorlube.html
You can request a free sample on...
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Forum: Technical Discussion
07-28-2012, 10:14 AM
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Replies: 12
Views: 3,398
Re: Metal Lubricants
WD-40 is not a very good lube. It is primarily Stoddard Solvent/paint thinner, which evaporates. What's left does gunk up. It does make a good grease cutter.
For light lubrication, air tool oil...
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Forum: Chit-Chat
06-24-2012, 09:01 AM
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Replies: 37
Views: 4,823
Re: What's your team motto?
Team 975's was "Wood is good". Our rookie year robot was mostly made out of wood and thereafter we tried to put at least a small piece of wood on each year.
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Forum: Chit-Chat
06-20-2012, 02:28 PM
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Replies: 4
Views: 1,011
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Forum: Chit-Chat
05-30-2012, 07:20 PM
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Replies: 41
Views: 8,256
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Forum: Chit-Chat
05-30-2012, 04:04 PM
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Replies: 8
Views: 1,012
Re: Patents and Copyrights
An some old patented items are still hilarious today, like the fan that fastens to your head and is powered by a jaw strap. :D
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Forum: Chit-Chat
05-30-2012, 03:55 PM
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Replies: 41
Views: 8,256
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Forum: Technical Discussion
05-08-2012, 12:43 PM
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Replies: 22
Views: 5,535
Re: Amazon Supply
Was it the 2002 championship where Jeff Bezos was one of the keynote speakers? The one at Disneyworld, anyway.
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Forum: Technical Discussion
02-08-2012, 05:46 PM
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Replies: 29
Views: 4,488
Re: End of week 4!
Nothing wrong with screwing or bolting a machine together. The Linotype machine (incredibly complex) far predated practical welding.
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Forum: General Forum
02-08-2012, 01:44 PM
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Replies: 4
Views: 1,123
Re: Transparent sticker printer paper?
Google it.
Avery Inkjet 8.5 x 11 Clear Sticker Paper ... about $2. per sheet.
Go to an office supply store and ask for clear full-sheet labels. They may have laser-compatible ones as well. An...
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Forum: Technical Discussion
02-08-2012, 01:23 PM
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Replies: 18
Views: 3,451
Re: Bearings don't fit (Drill rod) shafts ?
Taking a couple thou off an end of the unhardened drill rod shouldn't be hard if you can hold and spin it properly. We once had to open up two drive sprockets from 5/8" to 16 mm, or make the hole...
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Forum: Technical Discussion
01-24-2012, 03:57 PM
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Replies: 10
Views: 1,515
Re: How do I pick a fly wheel?
We had a saying, "Wood is Good". Mostly because we had no budget our first year and no machining facilities. I still have the promotional sign. It was painted on a scrap of Cedar wood siding: ...
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Forum: Technical Discussion
01-24-2012, 10:48 AM
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Replies: 10
Views: 1,515
Re: How do I pick a fly wheel?
Team 975 once made an effective ball shooter wheel out of plywood disks glued tgether. It was about 10" in diameter, 3" or so thick and grooved somewhat like a pulley. It had enough weight and...
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Forum: Technical Discussion
12-21-2011, 02:04 PM
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Replies: 15
Views: 2,669
Re: Bearing Block Question
Are you using single, self-aligning bearings, or just something sloppy enough that you get radial play? How far are things cantilevered?
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Forum: General Forum
12-17-2011, 02:11 PM
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Replies: 13
Views: 2,349
Re: Mill Purchase?
Inou8it, I see from your profile you are in USA. Lots of good, used stuff there. If you would narrow it down a bit, maybe someone could recommend some contacts. :D
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Forum: Technical Discussion
12-17-2011, 10:50 AM
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Replies: 13
Views: 2,586
Re: Timing Pulley Stock - Machining Question
I'd consider making a "key" that somewhat fit the gap between the teeth. It could be aluminum or soft copper wire. Hammer and file to fit somewhat, the height being a bit hit-or-miss. Don's idea...
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Forum: Technical Discussion
12-17-2011, 10:29 AM
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Replies: 7
Views: 2,712
Re: Sheet Metal Brake
Pay particular attention to the rated capacity of a bending brake. It's too easy to convert one to a "break". :mad:
Many people make their own, especially for smaller widths but heavier steel or...
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Forum: General Forum
12-17-2011, 09:52 AM
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Replies: 24
Views: 3,937
Re: Lathes and Mills
If you can hook up with a local community college or tech school, it's a great way to go.
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Forum: General Forum
11-17-2011, 10:28 AM
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Replies: 2
Views: 801
Re: Arbor Press
Make sure you get one that has enough working height to accommodate both your workpiece plus the length of your broach. The smaller presses may have around 12" maximum capacity. That won't work...
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A team does not achieve "Powerhouse" status by dominating every once in a while... they achieve that status by consistently dominating every year. - Jon Jack [more] 
