Joined: 06 Sep 2015
Posts: 304
Location: Adelaide, SA
Antweights - Slightly Evil Robotics - SA
The Force - lifter
For our first non-kit antweight my son got to pick a design, and he decided he wanted to build a "mini-Biteforce". It's 90% done and is now at the point of being drivable.
It doesn't quite all fit yet, I need to order a smaller receiver as I misjudged it's height with stuff plugged in. There's supposed to be a servo up front with a lifting arm attached (which is most of the remaining 10%).
It's underweight! Unfortunately the servo/lifting arm will weigh around 15g ... I'm hoping with the smaller receiver and a few other alterations it'll (maybe) scrape under the 150g.
Next to our Botbitz kitbot. I was still messing with the mixing when my son went to bed, tomorrow we'll hopefully be able to test them in combat for the first time.
Last edited by evil_steve on Sat Nov 14, 2015 9:51 pm; edited 2 times in total
Joined: 06 Sep 2015
Posts: 304
Location: Adelaide, SA
Here's my 7yo son trying out his bot (newly christened "The Force") against our kitbot (with expert commentary from my 3yo son). It's still missing it's lifting arm but it works quite well as a horizontal thwack-bot.
https://youtu.be/autK8BhMshY
Sat Nov 14, 2015 10:04 pm
evil_steve
Joined: 06 Sep 2015
Posts: 304
Location: Adelaide, SA
Picobyte - full body spinner
My other work-in-progress antweight. I'm still trying to work out several aspects to the design, not least how it'll all fit under the mixing bowls I found for the shell.
This appears to be escalating quickly _________________ Steven Martin
Twisted Constructions
http://www.botbitz.com
Sun Nov 15, 2015 11:28 pm
Philip Experienced Roboteer
Joined: 18 Jun 2004
Posts: 3842
Location: Queensland near Brisbane
You can reduce volume and weight by removing the case from the Rx, cutting the wires to length and soldering the wires directly to the board. Remove as many plugs as possible and solder the motor wires to the esc. _________________ So even the rain that falls isn't actually going to fill our dams and our river systems
Mon Nov 16, 2015 1:36 am
evil_steve
Joined: 06 Sep 2015
Posts: 304
Location: Adelaide, SA
quote:Originally posted by marto:
This appears to be escalating quickly
Heh. My 3yo was put out that I wasn't building him a robot yet, I asked him what sort he would like if I did ... "Tombstone" ...
Mon Nov 16, 2015 6:06 am
evil_steve
Joined: 06 Sep 2015
Posts: 304
Location: Adelaide, SA
quote:Originally posted by Philip:
You can reduce volume and weight by removing the case from the Rx, cutting the wires to length and soldering the wires directly to the board. Remove as many plugs as possible and solder the motor wires to the esc.
Thanks, they're good suggestions. If I need to I'll likely remove the receiver case and shorten the wires, but I'm reluctant to go away from the plugs because I like the interchangeability in case something breaks (plus I don't entirely trust my soldering skills again yet, still a bit rusty). Still an option though if I need to.
Mon Nov 16, 2015 6:13 am
Valen Experienced Roboteer
Joined: 07 Jul 2004
Posts: 4436
Location: Sydney
heh nice
looks like sparkles
we used the micro rx from hobbyking,
used foam for the body in sparkles.
for baby bowler we used PCB material for the base, then cassie just electrical taped the servos onto the PCB for the drive. _________________ Mechanical engineers build weapons, civil engineers build targets
Mon Nov 16, 2015 4:04 pm
evil_steve
Joined: 06 Sep 2015
Posts: 304
Location: Adelaide, SA
That's one shiny bot. I like the use of the saw blade, I might pinch that idea
Mon Nov 16, 2015 5:28 pm
Valen Experienced Roboteer
Joined: 07 Jul 2004
Posts: 4436
Location: Sydney
welding it to the rim of the bowl is not trivial lol ;->
7A on the tig, I think the bowls are plated not actually stainless btw _________________ Mechanical engineers build weapons, civil engineers build targets
Tue Nov 17, 2015 10:52 am
evil_steve
Joined: 06 Sep 2015
Posts: 304
Location: Adelaide, SA
The Force, now with lifter arm. And 4g overweight.
Tue Nov 17, 2015 8:48 pm
Fryddog
Joined: 24 Sep 2015
Posts: 75
Location: Adelaide
Hey Steve, Chris here.
Just curious, how are your bots going with fitting in the 4"x4"x4" box? They appear pretty large, or that might just be the pictures. Haha
Wed Nov 18, 2015 8:04 am
evil_steve
Joined: 06 Sep 2015
Posts: 304
Location: Adelaide, SA
quote:Originally posted by Fryddog:
Just curious, how are your bots going with fitting in the 4"x4"x4" box? They appear pretty large, or that might just be the pictures. Haha
Hi Chris. Didn't think the 4"/10cm cube thing was used is Australia, just in the UK.
The Force is just under 4.5" in length (not including the lifting arm, which raises to 90 deg anyway) but would easily fit in the other dimensions. The bowls I bought for Picobyte are just under 4" in diameter.
Wed Nov 18, 2015 8:13 am
Nick Experienced Roboteer
Joined: 16 Jun 2004
Posts: 11802
Location: Sydney, NSW
That's correct, we never bothered with the size rule - just fitting into the weight limit is enough of a challenge! _________________ Australian 2015 Featherweight champion
UK 2016 Gladiator champion
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum