quote:Originally posted by andrew:
serious question, them drives gonna be a saleable item soon? if hobbyking keep dicking me around with trackstar motor and esc being out of stock always ill maybe look into ordering two of them badboys for warning
If they survive a few events in Schmackhed and there are no failures with them, we'll be selling them via BotBitz. Probably wont be till after nationals though. _________________ Team Knightrous
Sun May 06, 2012 7:58 pm
miles&Jules Experienced Roboteer
Joined: 19 May 2010
Posts: 3973
Location: ipswich QLD
Great to see some feather action!....Looks like a beast...I think the paint job will look even better with a few battle scratches on it. he he
I've two battered melty brain chassis, a hammer bot chassis (with EV powered hammer mechanism) and some other offcut bits from various robots. _________________ Team Knightrous
Sun May 06, 2012 9:26 pm
miles&Jules Experienced Roboteer
Joined: 19 May 2010
Posts: 3973
Location: ipswich QLD
However I've blown another motor This one looks to have melted the fan and then fed it into the brushes which shorted across the comm and shorted the motor out. _________________ Team Knightrous
Mon May 07, 2012 4:56 pm
miles&Jules Experienced Roboteer
Joined: 19 May 2010
Posts: 3973
Location: ipswich QLD
Joined: 01 Jun 2005
Posts: 220
Location: Melbourne, Victoria
I still remember arriving at Sydney for a Battleshed comp (~2008?) and the Sydney guys were belting the steel floor panels back down again, after you and Andrew had test drove you robots and lifted several of them.
I also remember you trying to grind the bottom of your robot to give it more clearance.
Mon May 07, 2012 8:54 pm
Knightrous Site Admin
Joined: 15 Jun 2004
Posts: 8511
Location: NSW
As per the BotBitz thread, I tested out the brushless drive in Schmackhed.
The lasted about a minute before the pinion gear began to slip
I swear this robot is cursed to never have a drive train last longer them a few minutes >.> _________________ Team Knightrous
Sun May 20, 2012 2:23 am
Glen Experienced Roboteer
Joined: 16 Jun 2004
Posts: 9481
Location: Where you least expect
Joined: 16 Jun 2004
Posts: 11802
Location: Sydney, NSW
That's disappointing news! If you know pitch of the pinnion, you could buy some pinnion wire fairly cheaply and make your own parts with a tighter bore. Making them longer than required helps as well and then you also have a unique part to sell on BotBitz.
Sun May 20, 2012 9:56 am
Knightrous Site Admin
Joined: 15 Jun 2004
Posts: 8511
Location: NSW
I'm going to try two quick backyard methods to fix it first.
First up I'm going to try peening the shaft with a pin punch to put a heap of rough points for the pinion to grip with, then apply some loctite and press the pinion on. If that still fails, I'm going to drill a 2mm hole through the pinion and shaft, then press a pin into it. If those both fail, I'll move onto buying pinion stock to fit the shafts better and look at welding or brazing onto the shafts.
Coolest thing about the brushless drive so far, it sounds like a flying car from Doctor Who _________________ Team Knightrous
Sun May 20, 2012 1:03 pm
Knightrous Site Admin
Joined: 15 Jun 2004
Posts: 8511
Location: NSW
As per this video
The pinion problem seems fixed for now. I have just had the second Turnigy Trackstar 150A ESC arrive, so I'll get onto testing out the brushless drive tonight! _________________ Team Knightrous
Thu May 24, 2012 3:19 pm
Knightrous Site Admin
Joined: 15 Jun 2004
Posts: 8511
Location: NSW
Ah nope, pinion gears slipped on one side again...Will drill and pin them over the weekend as I don't have time to do them tonight. Was nice to drive with the brushless, controllers seem reasonable to use, all thought a full fwd to full reverse is still delayed, but very easy to just make the bot spin on the spot. _________________ Team Knightrous
Thu May 24, 2012 9:42 pm
Philip Experienced Roboteer
Joined: 18 Jun 2004
Posts: 3842
Location: Queensland near Brisbane
What is your other ant? _________________ So even the rain that falls isn't actually going to fill our dams and our river systems
Mon Jun 04, 2012 11:00 am
Knightrous Site Admin
Joined: 15 Jun 2004
Posts: 8511
Location: NSW
Another set of motors to try out in the wedge arrived today.
Turnigy H3736-1000Kv
They have 6mm shafts, so I will lathe them down to make a tight press fit for the pinion gears and hopefully avoid the hassles I've had so far. These motors will also bring the speed of the robot back towards the speeds of the brushed motor config. Will have a shot fitting them during the week and see if they are any good _________________ Team Knightrous
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