Search found 231 matches

by MarkR
Wed Oct 16, 2019 10:09 am
Forum: Antweights
Topic: Team Rocket Robotics Updates and Reports
Replies: 59
Views: 25999

Re: Team Rocket Robotics Updates and Reports

Hey it was a pleasure being beaten :)

Betsie even got the award for "most destroyed", which was spectacular but didn't damage anything crucial.
by MarkR
Wed Oct 16, 2019 10:07 am
Forum: Antweights
Topic: Hi & Dasmikro 2s6A issue
Replies: 5
Views: 97

Re: Hi & Dasmikro 2s6A issue

I only tried one Dasmikro 2s6a - without mixing - it worked ok for a while until I managed to let the magic smoke out. I wasn't convinced that getting more was a good idea, so I didn't. It didn't seem to be a problem as a speed controller, it's just the mechanical construction I don't like - too eas...
by MarkR
Tue Oct 15, 2019 12:55 pm
Forum: Antweights
Topic: Hi & Dasmikro 2s6A issue
Replies: 5
Views: 97

Re: Hi & Dasmikro 2s6A issue

Unless you have an oscilloscope, it may be tricky. If you can monitor the PWM outputs from the rx, you can see whether the pulse lengths are consistent. With the sticks centred (depending on how you've got it set up), then pulses should be absolutely the same length the whole time, and it should be ...
by MarkR
Sun Oct 13, 2019 12:45 pm
Forum: Antweights
Topic: 3D printing robots
Replies: 4
Views: 108

Re: 3D printing robots

Well I am basically a coder and I want hardware to seem more like software, so I use openscad. Those who were watching yesterday, will know, that you can 3d-print a flipper out of PLA, but not if you want it to survive a spinner attack (although, to be fair, it took a few hits before completely desi...
by MarkR
Sat Oct 12, 2019 4:55 pm
Forum: Events
Topic: Antweight open/AWS 2019
Replies: 59
Views: 19846

Re: Antweight open/AWS 2019

Thanks for organising the event, it was great. I thoroughly enjoyed it despite getting soaked by the rain on the way there and home, and the famously terrible performance of my robots (especially Betsie).

It was an ace day, if you do another one, I'll be there!
by MarkR
Wed Oct 09, 2019 8:55 pm
Forum: Events
Topic: Antweight open/AWS 2019
Replies: 59
Views: 19846

Re: Antweight open/AWS 2019

Remember that all of these rules are essentially at the event organiser's discretion, the failsafe probably doesn't matter unless it's a spinner.
by MarkR
Wed Oct 09, 2019 7:09 pm
Forum: Events
Topic: Antweight open/AWS 2019
Replies: 59
Views: 19846

Re: Antweight open/AWS 2019

Other than taking my finger off the throttle I have no way of stopping these, or their weapons, via a button on my controller. Will this be acceptable, I am not clear on the rules here. The failsafe is simple - if the robot loses signal (e.g. turn off the transmitter) then it should stop. This appl...
by MarkR
Sun Oct 06, 2019 7:03 pm
Forum: Antweights
Topic: T_Y's Build Log
Replies: 140
Views: 47555

Re: T_Y's Build Log

I think you have to be a bit careful overvolting steppers because the way stepper drivers behave, they pull current when the motor is not moving, the "holding current", which can possibly overheat the motor quite quickly. Of course that might be fixable in software / firmware, or as some option in t...
by MarkR
Sun Oct 06, 2019 10:40 am
Forum: Antweights
Topic: GeorgeR's robots
Replies: 124
Views: 46656

Re: GeorgeR's robots

You're very welcome. The weight saving may not sound like a lot, but used correctly it can make a big difference. For instance, my first candidate for these is Vampire, saving 2.8g. I'm planning to use this extra weight to lengthen the bar, moving from its current 13cm, 17g weapon to a 15cm 20g one...
by MarkR
Sun Oct 06, 2019 10:38 am
Forum: Antweights
Topic: T_Y's Build Log
Replies: 140
Views: 47555

Re: T_Y's Build Log

YES! Definitely build a mecanum wheel bot! Of course it will be necessary to drive all four wheels independently, ideally with either stepper motors or shaft encoders, so that the speed can be set precisely. I've no idea where small/light mecanum wheels can be got, I looked (briefly) at 3d printing ...