New FW database (new robots)

[razerdave]

New FW database (new robots)

I wish FIN spun that fast on 1 wheel :P

[RogueTwoRobots]

New FW database (new robots)

Updated info for Drumroll and adding Kaizer:

Name: Drumroll
Weight: 13.5kg
Power: Two 9.6V 3700mAh Ni-mh battery packs connected in series for 19.2V
Drive: Two 12V cordless drill motors overvolted to 19.2V and connected to 75mm blue wheels with bike tyre tread added
Weapon: A 3mm thick stainless steel spinning drum with four Hardox 450 discs welded onto the tube. Connected via timing belts and pulleys to a Speed 900 motor also running at 19.2V. Ratio of 2.5:1
Control: Two Electronize 15A speed controllers for drive and a Victor 885 for the drum.
Armour/chassis: 20mm thick Nylon 6 sides and bulkheads, 3mm ali base, 4mm hardox rear wedge and 4mm polycarb top with two layers of 4mm HDPE making up the self-righting hoops.

Name: Kaizer Mk3
Weight: 11kg
Power: Two 12V 3700mAh Ni-mh battery packs connected in series for 24V
Drive: Four 16.8V cordless drill motors overvolted to 24V and connected to 100mm blue wheels
Weapon: A set of front-facing lifting forks, similar to Panic Attack, powered by an Okin Deltadrive actuator rated at 800kg
Control: Two Electronize 30A speed controllers with external relays for drive and an Electronize 2-way switcher for the forks
Armour/chassis: 12mm HDPE sides front and back with 8mm HDPE base and panel armour, and 2mm ali chequerplate covering the top.
Notes: Lifting forks will be upgraded to four-bar-lifter when completed and 2mm ali chequerplate will be upgraded to something more likely to survive axes when funds allow.

Drumroll: http://i31.photobucket.com/albums/c367/ayrshirerobotics/Drumroll%20-%20Build/DSCN4017.jpghttp://i31.photobucket.com/albums/c3...0-%20Build/DSC N4017.jpg

Kaizer: http://i31.photobucket.com/albums/c367/ayrshirerobotics/Kaizer%20Mk3%20-%20Build/DSCN4046.jpghttp://i31.photobucket.com/albums/c3...k3%20-%20Build /DSCN4046.jpg

EDIT: Just noticed my profile pic is of Drumroll just before the UK champs last year. Not much has changed but it still looks quite different :P

(Message edited by K_C_R on February 11, 2009)

[psycho_fling]

New FW database (new robots)

never seen 16.8v drills before

[RogueTwoRobots]

New FW database (new robots)

Yeah I hadnt either until I bought fourteen off eBay - they were from hammer drills and I just swapped them and the gearing (which is faster than conventional cordless drills) into standard gearbox housings, because the hammer drills come with a removable shaft which has no easy way of locking in (not handy having a shaft fall out during a fight!)

[psycho_fling]

New FW database (new robots)

the makings of the new ramp for crumple zone

http://www.flickr.com/photos/27316623@N06/http://www.flickr.com/photos/27316623@N06/

[ady]

Re: New FW database (new robots)

New fw

K.a.h.n
6 wheel drive
electric lifter
titanium armour
built to with stand spinners, serious speed and pushing power, and a lifter too!

a fw bio hazard basically!

[geoff]

Re: New FW database (new robots)

Ok, the next addition to Team Torque is now firmly on the drawing board... 'Biting Torque'... A featherweight version of Team Whyachi's 'Y-Pout' a full body translational spinner! ( http://www.teamwhyachi.com/ypout.htm )
Technical details to follow shortly.

[ian_humphrey]

Re: New FW database (new robots)



Here's a little diversion, me building a feather.

[Metal Demons]

Re: New FW database (new robots)

Ok, the next addition to Team Torque is now firmly on the drawing board... 'Biting Torque'... A featherweight version of Team Whyachi's 'Y-Pout' a full body translational spinner! ( http://www.teamwhyachi.com/ypout.htm )
Technical details to follow shortly.

How're you steering it, a cam mechanism and variable angle wheels, or electronic controls?

[geoff]

Re: New FW database (new robots)

Would love to do a cam mechanism for it, in fact I would prefer to use Terry's original 'Nav-Bot' system. ( http://www.teamwhyachi.com/misc/NavBot.pdf ) But with only 13.6Kg to play with I fear I may have to go the electronic route.

[knightrous]

Re: New FW database (new robots)

The electronic route is certainly a lot easier while allowing for invertibility Will you be going 3 wheels as per the Y-pout/Y-not designs?

[Metal Demons]

Re: New FW database (new robots)

The electronic route is certainly a lot easier while allowing for invertibility Will you be going 3 wheels as per the Y-pout/Y-not designs?

If and when I end up doing one, it will use that 3 wheeled design...and brushless! I've figured out a hack which should allow them to be workable...

[geoff]

Re: New FW database (new robots)

@ Knightrous, yep the full Y-Pout replica, I have been in touch with Terry to get his permision to replicate his design and am awaiting his reply.

@ Metal Demons, thought about the burshles option, but discounted it because of the obvious problems. Tell me more about this hack of yours, sounds interesting.

[Metal Demons]

Re: New FW database (new robots)

@ Knightrous, yep the full Y-Pout replica, I have been in touch with Terry to get his permision to replicate his design and am awaiting his reply.

@ Metal Demons, thought about the burshles option, but discounted it because of the obvious problems. Tell me more about this hack of yours, sounds interesting.

Rather than designing my own custom controller to handle the faster update rates that would be required, I've been planning to just hack a brushless control board to split the power leads to the controller section and H-bridge - and then stick an IGBT in series with the main power to the bridge, so the H-bridge section (and motor) is only powered when the IGBT is ON - then I would be able to stick the brushless motor controller at one set throttle level and modulate its duty cycle via switching the IGBT, just like switching a normal motor.

I can already see a few problems though - wouldn't be ideal, but may work as a bit of a hack until I end up designing a custom, encoder-driven brushless controller for the machine.

It's just an electronics design project really... once I've got all that out of the way, the robot itself won't exactly be a particularly complicated beast - just a big chunk of hardox, A123s, and brushless motors.

[geoff]

Re: New FW database (new robots)

@ Knightrous, yep the full Y-Pout replica, I have been in touch with Terry to get his permision to replicate his design and am awaiting his reply.

@ Metal Demons, thought about the burshles option, but discounted it because of the obvious problems. Tell me more about this hack of yours, sounds interesting.

Rather than designing my own custom controller to handle the faster update rates that would be required, I've been planning to just hack a brushless control board to split the power leads to the controller section and H-bridge - and then stick an IGBT in series with the main power to the bridge, so the H-bridge section (and motor) is only powered when the IGBT is ON - then I would be able to stick the brushless motor controller at one set throttle level and modulate its duty cycle via switching the IGBT, just like switching a normal motor.

I can already see a few problems though - wouldn't be ideal, but may work as a bit of a hack until I end up designing a custom, encoder-driven brushless controller for the machine.

It's just an electronics design project really... once I've got all that out of the way, the robot itself won't exactly be a particularly complicated beast - just a big chunk of hardox, A123s, and brushless motors.

I like your idea, a very neat technical solution, but the main issue I have with any brushless soloution isn't the control side, that I'm sure could be solved with a system based on your idea, but given the physical abuse this design of machine places on the drive motors, I'm not sure how reliable any brushless set up would be. I'm yet to be convinced that any brushless motor is as 'robust' as a good quality PM DC motor.

That aside, I have just had a reply from Terry giving his blessing to the project so watch this space!.....