That's what doolsaw was meant to be. Very well executed. Far better than mine _________________ Steven Martin
Twisted Constructions
http://www.botbitz.com
Last edited by marto on Wed Sep 09, 2015 10:17 pm; edited 1 time in total
Sun Sep 06, 2015 10:39 am
Daniel Experienced Roboteer
Joined: 30 Aug 2005
Posts: 2729
Location: Gold Coast
I've run out of welding rods, so need to go to Bunnings before I can finish it. My welder is crap and I'm really wishing I can buy a new one, but I might just have to leave crappy welds on this thing.
I'm also going to touch up a weld on Berserker and give it a coat of paint, or possibly just a clear coat.
Sun Sep 06, 2015 11:43 am
Cpnwolfe
Joined: 29 May 2012
Posts: 454
Location: Rockhampton/qld
Joined: 30 Aug 2005
Posts: 2729
Location: Gold Coast
I'm waiting for the 12mm bearings to arrive before I can test install the drive and then I can paint. I also need to find a 4s controller for the arm actuator.
Wed Sep 09, 2015 9:57 pm
miles&Jules Experienced Roboteer
Joined: 19 May 2010
Posts: 3973
Location: ipswich QLD
Joined: 18 Jun 2004
Posts: 3842
Location: Queensland near Brisbane
Was this 10:1 4s with 100 mm wheels? It had good speed and acceleration, didn't it?
quote:Originally posted by Daniel:
I've got the frame screwed together. Hopefully I can have it driving next weekend.
And I thought I should render a picture of what the steel version should look like.
_________________ So even the rain that falls isn't actually going to fill our dams and our river systems
Fri Sep 11, 2015 4:40 am
Daniel Experienced Roboteer
Joined: 30 Aug 2005
Posts: 2729
Location: Gold Coast
Yes and yes. Just the sprockets had the wrong bore. I used the same ratio vs wheel size in Berserker (1:25 and 250mm wheels) and it drove fine in Sydney, apart from the tiny M3 grub screws slipping on the shafts, which are being replaced with flat end M5 screws and hardened shafts.
I'm also using the 4s NTM4235's with 1:10 gear ratio onto 100mm wheels in Prowler.
Fri Sep 11, 2015 9:23 am
miles&Jules Experienced Roboteer
Joined: 19 May 2010
Posts: 3973
Location: ipswich QLD
Joined: 30 Aug 2005
Posts: 2729
Location: Gold Coast
Ebay.
I also brought HobbyWing speed controllers on ebay. HobbyKing doesn't sell my car controllers anymore and none of their current car controllers match the specs of their old controller. Nothing with 4-cell, sensorless and forward/break without pausing. But I read that the HobbyKing trackstars were a copy of the HobbyWing controllers, which were easy to find on ebay for the same price and work fine.
Fri Sep 11, 2015 11:55 am
Philip Experienced Roboteer
Joined: 18 Jun 2004
Posts: 3842
Location: Queensland near Brisbane
Joined: 19 May 2010
Posts: 3973
Location: ipswich QLD
what about he new hacked brushless tx85s steve is playing with?…supposed to be epic. _________________ Miles Blow - Julie Pitts
www.mulesfilm.com.au www.wombokforest.com.au
-Pickasso- Vivid Sportsman champion 2015
Sat Sep 12, 2015 8:32 am
Daniel Experienced Roboteer
Joined: 30 Aug 2005
Posts: 2729
Location: Gold Coast
Well I ordered them before Steve started talking about modifying TZ85's.
I got the WP-SC8 speed controllers. Seemed to take forever to arrive from China, but was probably only 4 weeks.
Sat Sep 12, 2015 4:26 pm
Daniel Experienced Roboteer
Joined: 30 Aug 2005
Posts: 2729
Location: Gold Coast
And a warning that 6mm polycarb top cover are not going to be a good idea this year
I also tested Berserker today and found that it still has the overhead thwack moves, which managed to shattered one of the caster bearings.
Mon Oct 05, 2015 3:53 pm
miles&Jules Experienced Roboteer
Joined: 19 May 2010
Posts: 3973
Location: ipswich QLD
Joined: 30 Aug 2005
Posts: 2729
Location: Gold Coast
I looked at Prowler tonight. The smoked drive motor in the rumble yesterday was the first time I have burnt any part of my robots for a few years. I pulled off the motor and ripped it apart and it seems I stuffed up. While getting Prowler ready I was giving the gearbox a check over, which involved removing the motor. When I replaced it I used three 8mm long screws and one 10mm long screw. The 10mm screw went into the winding wires and shorted it out, hence the smoke and burnt motor. Stupid mistake.
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