well to get the ball rolling heres our new bot for the MDF class.
we are using the disk from Plan-B and the fan motor but with a nice long V or A or something belt.
4 drill motors
power is from 4 drill packs, 3 in parallell to the drive motors and one in seires to the weapon motor.
main construction material is 12mm MDF, aluminium angle 1x metric assload of buttonhead bolts and nuts to suit.
note this file has been compressed with rar not zip you may need to get something like winrar to uncompress it (the reason for this is when rar'ed it was half the size of zipped)[/list] _________________ Mechanical engineers build weapons, civil engineers build targets
Tue Sep 06, 2005 11:17 am
dyrodium Experienced Roboteer
Joined: 24 Aug 2004
Posts: 6476
Location: Sydney
With the KE limit, i'm wondering how powerful that blade will be... Is it made from mdf too? XD _________________ ( •_•)
I like the MDF motors and batteries.
That limits the KE somewhat! _________________ The Engine Whisperer
- fixer of things
Tue Sep 06, 2005 2:15 pm
Nick Experienced Roboteer
Joined: 16 Jun 2004
Posts: 11802
Location: Sydney, NSW
I approve the general design, but did you work out the weight? MDF is relatively dense and I would guess that with 4 motots and that big disk, the bot will end up at 15Kg or more. _________________ Australian 2015 Featherweight champion
UK 2016 Gladiator champion
Tue Sep 06, 2005 4:10 pm
Valen Experienced Roboteer
Joined: 07 Jul 2004
Posts: 4436
Location: Sydney
we figure about 11 kg sans battery and ESC protection.
keep in mind they arent counted towards weight.
also looks like we may need to up or alter that limit somehow. spoke to chris today and he runs 3x 15v 3.5AH packs for sorry. but he dosent draw them flat after each round. so i dunno what you do there _________________ Mechanical engineers build weapons, civil engineers build targets
Tue Sep 06, 2005 4:27 pm
Glen Experienced Roboteer
Joined: 16 Jun 2004
Posts: 9481
Location: Where you least expect
looks fine to me, are the bearings bored into the wood itself or some aluminium bolted to the MDF? or a stationary shaft.
Joined: 16 Jun 2004
Posts: 11802
Location: Sydney, NSW
To save weight, I was thinking about bearings in the drum, with short shafts mounted on fairly large plates to carry the impact energy out into the frame. The plates would probably be large enough to touch the floor during impacts and avoid over-stressing the MDF. One thing about this class is the possibility of making LOTS of spare MDF parts at low cost. With plenty of spares, even major damage can be repaired quickly. _________________ Australian 2015 Featherweight champion
UK 2016 Gladiator champion
Tue Sep 06, 2005 6:47 pm
Russell
Joined: 16 Aug 2004
Posts: 90
Location: Sydney
Nick you have got the idea of this class of bot
Getem brokern and fix them quickly
Tue Sep 06, 2005 9:48 pm
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