People Skills : 5899 Registration date : 2009-07-05 Age : 33 Location : PA
Subject: Torgr-Beetleweight Wed Oct 06, 2010 10:22 am
just started build my beetle for FI got quite a bit done yesterday
Maby?
rjw Chief Bottle Washer
People Skills : 7736 Registration date : 2009-03-31 Location : Miami
Subject: Re: Torgr-Beetleweight Wed Oct 06, 2010 11:27 am
the blade might go right over the top of my melty beatle....???? then what gyro and take out the covers?
Koolaid64 mega contributor
People Skills : 5899 Registration date : 2009-07-05 Age : 33 Location : PA
Subject: Re: Torgr-Beetleweight Wed Oct 06, 2010 12:55 pm
well when all done the blade should swing 3/8" from the floor in the front
Koolaid64 mega contributor
People Skills : 5899 Registration date : 2009-07-05 Age : 33 Location : PA
Subject: Re: Torgr-Beetleweight Thu Oct 07, 2010 2:18 am
scary, scary robot
Koolaid64 mega contributor
People Skills : 5899 Registration date : 2009-07-05 Age : 33 Location : PA
Subject: Re: Torgr-Beetleweight Thu Oct 07, 2010 3:48 pm
all done just going to test it out now
Koolaid64 mega contributor
People Skills : 5899 Registration date : 2009-07-05 Age : 33 Location : PA
Subject: Re: Torgr-Beetleweight Thu Oct 07, 2010 8:05 pm
changed the wheel guards so increase the stability
Dan Curhan Admin
People Skills : 6338 Registration date : 2009-03-14 Age : 32 Location : Sarasota, FL
Subject: Re: Torgr-Beetleweight Tue Oct 12, 2010 8:51 pm
Looks good! how hard does it hit?
Stephen super contributor
People Skills : 5586 Registration date : 2009-11-01 Age : 29 Location : West Mifflin
Subject: Re: Torgr-Beetleweight Tue Oct 12, 2010 9:01 pm
looks cool
is the tape ur safety haha
Koolaid64 mega contributor
People Skills : 5899 Registration date : 2009-07-05 Age : 33 Location : PA
Subject: Re: Torgr-Beetleweight Tue Oct 12, 2010 9:13 pm
it was at the time =P and it did its job
rjw Chief Bottle Washer
People Skills : 7736 Registration date : 2009-03-31 Location : Miami
Subject: Re: Torgr-Beetleweight Tue Oct 12, 2010 9:19 pm
Koolaid64 wrote:
it was at the time =P and it did its job
Is that the one that took 3rd?
Koolaid64 mega contributor
People Skills : 5899 Registration date : 2009-07-05 Age : 33 Location : PA
Subject: Re: Torgr-Beetleweight Tue Oct 12, 2010 9:25 pm
yup, and though you cant really see it happen in this video it blows the beater off one of the weta kits =P
rjw Chief Bottle Washer
People Skills : 7736 Registration date : 2009-03-31 Location : Miami
Subject: Re: Torgr-Beetleweight Tue Oct 12, 2010 9:31 pm
I like Pete's uick change beater/drum bots.....lol
Now why couldn;t you have beat Mr. C for total domination
rjw Chief Bottle Washer
People Skills : 7736 Registration date : 2009-03-31 Location : Miami
Subject: Re: Torgr-Beetleweight Tue Oct 12, 2010 9:39 pm
Kyle
What were you trying to tell me about one of the tortoises and a pulley on 1 of your bots...I was brain dead and didn;t understand???
Koolaid64 mega contributor
People Skills : 5899 Registration date : 2009-07-05 Age : 33 Location : PA
Subject: Re: Torgr-Beetleweight Tue Oct 12, 2010 9:46 pm
i don't remember =P i guess it wasn't that important then, all well.
an yea ill get him eventually, Croup is my beetleweight rival and maelstrom is my antwweight rival, so far i haven't had a fairyweight that i haven't been able to beat
rjw Chief Bottle Washer
People Skills : 7736 Registration date : 2009-03-31 Location : Miami
Subject: Re: Torgr-Beetleweight Tue Oct 12, 2010 9:49 pm
You might be able to spank him iwith Sting.....he's yours if you wanna borrow him
just start out with wrong direction full speed hit and see what's left and who's still standing..just crawl right up his wedge and say Hi
4goodbuys2
People Skills : 4881 Registration date : 2010-12-27
Subject: Re: Torgr-Beetleweight Tue Jan 04, 2011 1:00 pm
What is that white cutting board looking material that seems to be used on alot of the robots on here? You seem to be able to mount your polycarbonate directly to it. What the name of that material and where can you buy it?
Last edited by 4goodbuys2 on Wed Jan 05, 2011 7:22 am; edited 1 time in total
crowconor
People Skills : 4995 Registration date : 2010-11-06
Subject: Re: Torgr-Beetleweight Tue Jan 04, 2011 2:15 pm
UHMW , mcmaster.com
Koolaid64 mega contributor
People Skills : 5899 Registration date : 2009-07-05 Age : 33 Location : PA
Subject: Re: Torgr-Beetleweight Tue Jan 04, 2011 2:35 pm
yup, its a lot softer then poly but still a very good material, use wood screws on the major framing joints, machine screws can stripe easily
4goodbuys2
People Skills : 4881 Registration date : 2010-12-27
Subject: Re: Torgr-Beetleweight Tue Jan 04, 2011 2:43 pm
While I'm asking about materials what type of aluminum sheet is good for armor , to screw on to the UHMW?
Brandon Roberts
People Skills : 5178 Registration date : 2010-04-26 Age : 30 Location : Clairton, Pa
Subject: Re: Torgr-Beetleweight Tue Jan 04, 2011 8:24 pm
all depends on what your using it for, different types are better at different thickness-es and so forth. but as far as things go 7075 is the most recommended, its aircraft grade aluminum. its has good hardness but is still light weight. it is slightly heavier then 6061 but is a good deal stronger, but with that strength its also expensive, so it depends on budget as well
a few numbers
6061...Rockwell hardness B60, Yield strength (force before it bends or snaps) around 40,000PSI
7075....Rockwell hardness B87, yield strength around 75,000PSI
Cody 2000+ club
People Skills : 7783 Registration date : 2009-03-16
Subject: Re: Torgr-Beetleweight Tue Jan 04, 2011 10:30 pm
I'm not sure that it would be worth the added weight to add alum. to UHMW on a Beetle wieght. Like you have noticed ALOT of bots are being made of UHMW. It light and pretty rigid and best of all its CHEAP! Against most bots UHMW is fine, the ones it isnt fine against aluminum "sheet" probably isn't going to help much either haha
rdubard mega contributor
People Skills : 5903 Registration date : 2009-06-10 Age : 59 Location : Ransom Everglades, Miami, FL
Subject: Re: Torgr-Beetleweight Wed Jan 05, 2011 6:21 am
Brandon Roberts wrote:
6061...Rockwell hardness B60, Yield strength (force before it bends or snaps) around 40,000PSI
7075....Rockwell hardness B87, yield strength around 75,000PSI
Yeah, the 7075 apparently has lots more zinc in it. I like that you elaborated on the "yield strength," because it brings up the point that, while 2024 can be bent to shape (a bit too easily sometimes), and you can get away with bending 6061 some, 7075 simply snaps before you've bent it much.
Not that I would recommend bending parts to shape anyway. . .
No one has mentioned it yet, but from what I've been told, 2024 is what most of the 'hardware store' aluminum is (especially the extrusions). It is easy to find, pretty cheap, and kinda 'gummy.' I hate machining it, cuz it clogs up the cutting flutes/teeth. Also it really isn't strong enough for most parts on modern battlebots, but it used to be pretty common. I guess that's why no one even mentioned it earlier.