Search found 375 matches
- Sun Aug 18, 2019 8:52 am
- Forum: Questions (and answers)
- Topic: 3D printing
- Replies: 5
- Views: 17597
Re: 3D printing
1. Material choice "basic" PLA is nice and easy to print but has dubious mechanical properties. It's generally OK I think for internal parts of the robot where there is armour of something else outside. Don't expect it to last long if it takes a direct hit. PLA is also quite brittle and te...
- Sat Aug 17, 2019 10:15 pm
- Forum: Questions (and answers)
- Topic: Graphene Batteries
- Replies: 3
- Views: 15743
Re: Graphene Batteries
I get the impression that Hobbyking / Turnigy would claim their batteries contained Mithril and Dilithium crystals if they thought people would believe it :) I'm sceptical that this actually makes any difference, I think they're just normal lipo really, with a layer of unobtanium to make them sound ...
- Thu Aug 01, 2019 6:52 pm
- Forum: Events
- Topic: RoboShowdown
- Replies: 9
- Views: 23441
Re: RoboShowdown
IF I can make it, I'll bring Betsie and Stacie.
Then we can have that Betsie vs Mantis whiteboard you suggested. I love Mantis, it's brilliant (although it was my poor driving / weird control system which let me down last time)
Then we can have that Betsie vs Mantis whiteboard you suggested. I love Mantis, it's brilliant (although it was my poor driving / weird control system which let me down last time)
- Thu Aug 01, 2019 12:18 pm
- Forum: Antweights
- Topic: ESC Sanity check
- Replies: 20
- Views: 40707
Re: ESC Sanity check
It's very difficult to produce a compact layout which doesn't have wires leaving from several edges of the board. With power, signal and motors, there have to be quite a few things. e.g. Dasmikro has awfully tiny nasty pads which are terrible to solder to, but still on both ends. It's a really good ...
- Thu Aug 01, 2019 10:18 am
- Forum: Antweights
- Topic: ESC Sanity check
- Replies: 20
- Views: 40707
Re: ESC Sanity check
Very interesting... it is the RZ7886, the DIP8 version of my favourite rz7899
https://lcsc.com/product-detail/Motor-D ... 28852.html
They should be as tough as old boots, if the other rz chips are anything to go by.
https://lcsc.com/product-detail/Motor-D ... 28852.html
They should be as tough as old boots, if the other rz chips are anything to go by.
- Wed Jul 31, 2019 8:38 pm
- Forum: Antweights
- Topic: ESC Sanity check
- Replies: 20
- Views: 40707
Re: ESC Sanity check
It does look a little bit on the large side for an antweight ESC, and 5A per channel is definitely excessive, my N20 motors stall at about 0.5A, so even with two stalled in parallel that's still only 1 amp. I also noticed, on closer inspection of the pictures on various sites, that these ESC have a ...
- Wed Jul 31, 2019 3:29 pm
- Forum: Antweights
- Topic: ESC Sanity check
- Replies: 20
- Views: 40707
Re: ESC Sanity check
Do you have a multimeter? If you connect the ESC to the power and nothing else, the red and black wires on the servo-type plug (3-pin dupont connector) should give +5V from the regulator (BEC). Assuming that's ok, then can you measure the resistance between the various wires (with power off) - the b...
- Wed Jul 17, 2019 11:27 am
- Forum: Questions (and answers)
- Topic: Basic Flipper Hinge Question
- Replies: 9
- Views: 28664
Re: Basic Flipper Hinge Question
For completeness - I avoided having a hinge completely and on Stacie, I just pivot the whole flipper arm on a pair of N20 motors with a coupler I made http://vectrex.org.uk/mark/flip_coupler.png http://vectrex.org.uk/mark/stacie1.jpg (Difficult to see as the part is matt black due to being made of P...
- Sat Jul 06, 2019 10:30 pm
- Forum: Events
- Topic: Antweight World Series 58 - 29th June 2019
- Replies: 84
- Views: 281772
Re: Antweight World Series 58 - 29th June 2019
Chris,
Was AWS58, "The biggest robot combat event, ever?"
According to Antlog there were 121 robots. This has to be some kind of record.
Was AWS58, "The biggest robot combat event, ever?"
According to Antlog there were 121 robots. This has to be some kind of record.
- Fri Jul 05, 2019 9:35 am
- Forum: Antweights
- Topic: The smart ant's and flea's
- Replies: 101
- Views: 200831
Re: The smart ant's and flea's
Unorthodox was amazing at AWS58, please, tell us how the walking mechanism works?
Or is it a super trade secret?
Or is it a super trade secret?