Search found 37 matches

by tomchaps
Wed Jun 13, 2018 7:05 pm
Forum: Antweights
Topic: Antescher Assault Systems build diary
Replies: 73
Views: 4620

Re: Antescher Assault Systems build diary

By the way, a while back you lamented the lack of cheap Chinese wheels. I've been using these, and they're fine: https://www.aliexpress.com/item/10pcs-lot-D-hole-Rubber-Wheel-Suitable-for-N20-Motor-D-Shaft-Tire-Car-Robot-DIY/32769037524 And for the orange wheels: https://www.aliexpress.com/item/Smar...
by tomchaps
Tue May 01, 2018 10:20 pm
Forum: Antweights
Topic: Team Ucalegon's ants
Replies: 39
Views: 5613

Re: Team Ucalegon's ants

Thanks! It's slowly getting better, as I'm learning from my mistakes: Last year: Match #1: My servo arm was a paper clip, which broke. Cut a polycarb arm to replace it. Match #2: Forgot to actually screw on the servo arm, which broke. Screwed it in. Rumble: Thin taped-on plastic flipper extension he...
by tomchaps
Mon Apr 30, 2018 11:38 pm
Forum: Antweights
Topic: Team Ucalegon's ants
Replies: 39
Views: 5613

Re: Team Ucalegon's ants

Robogames was a blast, and my 150g bot finally won a match. I think Swarf might have been one of the only flippers in the event, in a field full of scary kinetic spinners. Still, I ended up going 2-2, losing to a wide dustpan that I couldn't flip (no 4" cube restrictions here!) and a spinner that br...
by tomchaps
Fri Apr 20, 2018 10:40 pm
Forum: Questions (and answers)
Topic: Can you wreck an ESC by testing the failsafe?
Replies: 2
Views: 228

Can you wreck an ESC by testing the failsafe?

A friend finally rebuilt his 150g horizontal spinner (Afro 20a OPTO esc, the typical red dys1806 motor), and wanted to test the failsafe. Spun the weapon up to full power, but when he turned off the transmitter, the blade stopped VERY suddenly. He thought maybe it might have produced some back EMF t...
by tomchaps
Wed Apr 18, 2018 11:45 pm
Forum: Antweights
Topic: Team Dudge build diaries.
Replies: 79
Views: 5337

Re: Team Dudge build diaries.

Out of curiousity, how are brushed N20 motors used for hammers? Are there endpoints somehow set so the motor doesn't burn itself out pushing the hammer arm against the frame? Or do you just use the throttle channel and wing it?

I'd love to build something like this, but am not sure how it's done...
by tomchaps
Wed Apr 18, 2018 6:58 pm
Forum: Antweights
Topic: Team Ucalegon's ants
Replies: 39
Views: 5613

Re: Team Ucalegon's ants

Nope, it's a coincidence! The name is from a character in the old, bizzare Uncle series of kids books. The Badfort crowd of villains have wonderful names I'm hoping to use for our bots: Nailrod Hateman, Hitmouse, Jellytussle... Man, I loved Jellyfish, though--as someone whose first bot built not lon...
by tomchaps
Tue Apr 17, 2018 11:39 pm
Forum: Antweights
Topic: Team Ucalegon's ants
Replies: 39
Views: 5613

Re: Team Ucalegon's ants

Well, I finally got another "pink" servo, as well as a couple of others to test. One is rated at 7.4V--should I NOT run it directly off of a 2S lipo, since it's 8.4V fully charged? I'm not sure how sensitive these things are to being overvolted. (The "pink" is rated to 8.4V, and I've never had an is...
by tomchaps
Tue Apr 17, 2018 10:26 pm
Forum: Questions (and answers)
Topic: My new brushless weapon ESCs are OPTO, not BEC...
Replies: 3
Views: 185

Re: My new brushless weapon ESCs are OPTO, not BEC...

Cool, so if my receiver is powered through my brushed drive ESCs, I don't need to do anything different? Thanks!
by tomchaps
Tue Apr 17, 2018 9:12 pm
Forum: Questions (and answers)
Topic: My new brushless weapon ESCs are OPTO, not BEC...
Replies: 3
Views: 185

My new brushless weapon ESCs are OPTO, not BEC...

I just picked up a set of BLHeli 20a ESCs to run the classic DYS BE1806 motor for my weapon. But while my old bot used an ESC with a BEC, these are "OPTO". If I remember correctly, this means I need to wire it a bit differently--but for the life of me, I can't figure out what I should do. Wire an ex...
by tomchaps
Wed Mar 07, 2018 5:54 pm
Forum: Antweights
Topic: Team Ucalegon's ants
Replies: 39
Views: 5613

Re: Team Ucalegon's ants

I'm building another clamp/flipper, and the "pink" Turnigy servo is out of stock at HobbyKing. What other 150g-appropriate servos would folks recommend? Also, if I'm just clamping, I presume I don't need as burly a servo as the "pink" I use for a flipper. Is there a popular weaker servo that holds u...
by tomchaps
Fri Feb 16, 2018 6:45 pm
Forum: Antweights
Topic: Team Ucalegon's ants
Replies: 39
Views: 5613

Re: Team Ucalegon's ants

Okay, so I now have three 150g ants, and our backyard arena is finished enough to use. Hopefully we can get a local league going soon! Here's a video my son made of our recent "event", which was mostly an excuse to force us to finish building. My friend's bot broke very quickly, so it was mostly my ...
by tomchaps
Wed Oct 04, 2017 10:22 pm
Forum: Resource Websites
Topic: Receivers
Replies: 9
Views: 1312

Re: Receivers

Sorry for reopening this old thread, but since I've been switching back from building tiny quadcopters back to robots, I realize that I'm not sure how you'd use a PPM receiver with a brushless motor weapon. For my robots, I've always just used a nice fat PWM receiver with pins for each channel. How ...
by tomchaps
Wed Sep 20, 2017 5:57 pm
Forum: Questions (and answers)
Topic: My first build
Replies: 7
Views: 751

Re: My first build

Is that a mini-version of the Fingertech weapon blade?
by tomchaps
Fri Sep 15, 2017 10:35 pm
Forum: Antweights
Topic: Team Ucalegon's ants
Replies: 39
Views: 5613

Re: My first ant was not a success: Onto the second!

Does anyone know what screw to use on "the pink servo" (linked above at Hobbyking) for attaching the horn? I seem to have lost mine, and can't find the specs online.
by tomchaps
Mon Sep 11, 2017 5:52 pm
Forum: Questions (and answers)
Topic: Building a battle box
Replies: 4
Views: 847

Re: Building a battle box

We actually began buying stuff for our neighborhood battle box--based mostly on scrounged supplies. (We found a 1/4" sheet of polycarb that's 48x39 inches, and 80/20 channel that's in 16" lengths.) Given our scraps, we could build a 3'x4' or even 4'x4' arena, but the roof would only be 12" from the ...