Joined: 04 May 2011
Posts: 66
Location: Sydney NSW
Chemically Enhanced Robotics - NSW
Hi All
I am one of the new builders from the latest NSW event and have started to collect parts and assemble my first robot for the upcomming event in June.
I would love to get some advise on if what i have planned is fisable and on where to get a few parts.
First, what i have
2x 6V 400RPM ebay motors from the guy who sells the 1000RPM beetle motors (+ spares)
Mini Servos (lots)
TReX Jr Motor Control (1)
6 channel hobby king V1 TX and RX set.
0.5mm Al sheet metal
Batteries (Ordered from hobbyking 3 weeks ago)
Wheels (Need advise, turns out office chair wheels arnt particularly easy to work with)
The questions are; Is it possible to make an effective wedge shape flipping robot using the spring assembly in the photo to flip with.
If so how would you recomend compressing and uncompressing the spring?
Where can i source small wheels ~25mm quickly and cheaply?
Regards
Ken
Last edited by Kenvs001 on Thu Jun 23, 2011 9:22 am; edited 1 time in total
Fri Jun 10, 2011 2:09 pm
Valen Experienced Roboteer
Joined: 07 Jul 2004
Posts: 4436
Location: Sydney
nobody really seems to have a good answer to antweight wheels as yet.
we made ours with some aluminium hubs, that we glued some foam onto that we holesawed out of a kickboard (swimming) _________________ Mechanical engineers build weapons, civil engineers build targets
Fri Jun 10, 2011 8:10 pm
Kenvs001
Joined: 04 May 2011
Posts: 66
Location: Sydney NSW
Hugbot V1.0
Todo:
Replace Al base with Carbon Fibre
More Glue, Less Tape
Get bigger wheels, damn motors are too heavily geared
Learn to drill stainless steel (3 holes = 2 dead drill bits)
Shorten wires
Stab Everything!
Mon Jun 20, 2011 9:54 am
dyrodium Experienced Roboteer
Joined: 24 Aug 2004
Posts: 6476
Location: Sydney
Rofl! I love it. Something sharp like that could be concievably nasty to all the exposed wires on other peoples bots... _________________ ( •_•)
haha nice work, great to see you up and running! any drive test video?
howd you go with the ant stuff you pictured up top? _________________ <Patrician|Away> what does your robot do, sam
<bovril> it collects data about the surrounding environment, then discards it and drives into walls
Mon Jun 20, 2011 11:36 am
Kenvs001
Joined: 04 May 2011
Posts: 66
Location: Sydney NSW
Update, Hugbot V1.1
Fully functional and good to go.
Weight 147g
As for the other items in the first photo, i have used the electronics but ditched the Al after the photos of the destroyed coke cube on one of these build reports. I value the internals to much to have them spill everywhere with no reason.
Thu Jun 23, 2011 9:21 am
Jaemus Experienced Roboteer
Joined: 01 Apr 2009
Posts: 2674
Location: NSW
Interesting wheel hubs! Whered you get those? _________________ <Patrician|Away> what does your robot do, sam
<bovril> it collects data about the surrounding environment, then discards it and drives into walls
Thu Jun 23, 2011 11:39 am
Kenvs001
Joined: 04 May 2011
Posts: 66
Location: Sydney NSW
Ah, so that's proof that robotmarketplace has changed their shipping method to ultraexpensive we-dont-want-international-customers shipping.
Another alternative for hubs i've been looking at are the prop adaptors ala http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=8895 sadly now out of stock. _________________ ( •_•)
Joined: 09 Jan 2009
Posts: 518
Location: Wantirna, Melbourne
ive actually considered prop adapters at mounting a foam wheel on the back end of one of my big brushless motors for friction drive. I tested it and you can get it to hold pretty good on its own with a reasonably high levelof 'clutch grip', but with say spikes (nails) embedded in the hub to lock the wheel it could just work well enough. _________________ http://au.youtube.com/user/crustydemonsully
The day I stop giving 100%, is the day I stop competing
Thu Jun 23, 2011 2:41 pm
Kenvs001
Joined: 04 May 2011
Posts: 66
Location: Sydney NSW
Damage Report from 25/6/11
Nothing too major, just seriously slashed up wheels and a slightly grinded coke bottle.
On that note 0.5mm Al and glue are both useless and will never be heard from again.
Hugbot V2 to be invertable with better drive motors.
On that note;
Request 1: could somebody please link me to whatever are the current preference for verticle spinning beetle weapons, as that will be the newest addition to the fleet.
Request 2: Could somebody please link 6V antweight motors as mine where worse than useless.
Regards,
Ken
Last edited by Kenvs001 on Mon Jun 27, 2011 4:17 pm; edited 1 time in total
Sat Jun 25, 2011 6:27 pm
Philip Experienced Roboteer
Joined: 18 Jun 2004
Posts: 3842
Location: Queensland near Brisbane
quote:Originally posted by Kenvs001:
Request 2: Could somebody please link 6V antweight motors as mine where worse than useless.
Regards,
Ken
http://www.botbitz.com/ _________________ So even the rain that falls isn't actually going to fill our dams and our river systems
Very nice! 4S ant, crazym and beetle is looking excellent! _________________ <Patrician|Away> what does your robot do, sam
<bovril> it collects data about the surrounding environment, then discards it and drives into walls
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