Search found 375 matches

by MarkR
Tue Apr 24, 2018 9:42 am
Forum: Antweights
Topic: Mark's Antweight build
Replies: 64
Views: 88942

Re: Mark's Antweight build

Paul, thanks for the suggestion: I found another nice looking h-bridge. The dasmikro seems to have been taken off banggood. https://m.ebay.co.uk/itm/Stepper-Dual-Motor-Drive-Controller-Board-TB6612FNG-Replace-L298N-for-Arduino-PI/262840221598?epid=547517332 After the untimely demise of the Dasmikro,...
by MarkR
Tue Apr 17, 2018 9:46 pm
Forum: Antweights
Topic: Mark's Antweight build
Replies: 64
Views: 88942

Re: Mark's Antweight build

Oh cock. It was all going swimmingly (see above picture). But now my Dasmikro seems to have blown up, during a test this evening one channel got locked on full power, and the smoke came out. I will need to totally disassemble it to see if it's a gonner (probably yes) - it does not smell nice. Looks ...
by MarkR
Tue Apr 17, 2018 9:03 pm
Forum: Antweights
Topic: N20 gear motors from China...
Replies: 6
Views: 6039

Re: N20 gear motors from China...

Update: The 0ohm short-circuit motor, I decided to use as a "mechanical prototype" that I could bash around as much as I wanted, trying to make it fit. Essentially, I connected it mechanically to my flipper and started bashing it around a bit. To my extreme surprise, it seems to have "...
by MarkR
Tue Apr 17, 2018 8:52 pm
Forum: Questions (and answers)
Topic: Powering balance charger
Replies: 1
Views: 3518

Re: Powering balance charger

I connected an old laptop PSU to mine, which gives out about 18V, which appears to work.

But there is a cut-off, I think about 20v is too much. I tried another laptop PSU which is about 20v, that didn't work, it just gave a flashing light.
by MarkR
Tue Apr 17, 2018 2:17 pm
Forum: Antweights
Topic: Mark's Antweight build
Replies: 64
Views: 88942

Re: Mark's Antweight build

Hardware is nearly finished, the flipper works mechanically (if not yet electrically)
by MarkR
Mon Apr 09, 2018 4:00 pm
Forum: Antweights
Topic: Team Dudge build diaries.
Replies: 85
Views: 76574

Re: Team Dudge build diaries.

That looks super awesome.

What is the armour / structure made of? What material?

Is it really strong enough to whack the hammer with only one side connected to the motor?

That metal piece with grub screw looks pretty solid.
by MarkR
Sat Apr 07, 2018 8:18 am
Forum: Antweights
Topic: Mark's Antweight build
Replies: 64
Views: 88942

Re: Mark's Antweight build

It is looking better now, but without much more functionality, I need a lot more time to work on the software, get the flipper made and stuff.

I also think I need some smaller / lighter battery pack, maybe will pick up a 180mAh 3S?

Mark
by MarkR
Thu Apr 05, 2018 7:54 pm
Forum: Antweights
Topic: "Flip-it” new build/project
Replies: 81
Views: 142183

Re: "Flip-it” new build/project

Nice bot, Drax Power, a box on wheels.

I hope the black fits the aesthetic you had in mind, it's the PLA that I happened to have handy!
by MarkR
Wed Mar 28, 2018 11:19 am
Forum: Questions (and answers)
Topic: Yet another 3D printing tips thread
Replies: 6
Views: 6256

Re: Yet another 3D printing tips thread

Hi, First of all, from lurking around the site I've seen that PLA won't be enough to make it in a battle, so my first question is: is ABS printed with 100% infill still the best bet? I've just had a go with some Innofil Pro1, which is a form of PLA which is, in most respects, stronger than ABS, but ...
by MarkR
Tue Mar 27, 2018 9:20 pm
Forum: Antweights
Topic: The adventures of an antweight robot building nerb
Replies: 24
Views: 54461

Re: The adventures of an antweight robot building nerb

I haven't tried a soldering iron. To be honest, I doubt it, soldering irons are too hot and too localised for that kind of thing... but if you manage, do please post the results. More likely would be a "soldering rework station" hot air gun, which can apply extremely hot air to a very loca...