My first build

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trimfandango
Posts: 5
Joined: Mon May 15, 2017 4:26 am

My first build

Postby trimfandango » Tue Sep 12, 2017 9:51 pm

My goal is a 150 gram bot for our upcoming makerfaire. So far I have a few prototypes and a lot of questions.
As a newb I may not know enough to ask the questions with the proper details.

1. Can I use a 49 Mhz Remote Control for the robot? Like from an R/C toy?

2. I'm waiting on a step down voltage regulator for a 7.2V 2C battery. I tried to power it with 2 x CR2032 coin cell batteries it did turn on and power the motors barely but not enough juice to make it run well. When I get that module, what is the best way to determine the ideal voltage for the project? I thought it should be 6 volts.

Thanks,
Jody
Attachments
Z-wedge-internals.JPG
Z-wedge-internals.JPG (197.58 KiB) Viewed 353 times
Z-wedge.JPG
Z-wedge.JPG (121.96 KiB) Viewed 353 times

trimfandango
Posts: 5
Joined: Mon May 15, 2017 4:26 am

Re: My first build

Postby trimfandango » Wed Sep 13, 2017 4:20 am

@coolspeedbot

Here is that Banana Bot my son and I worked on.
I wanted to try to stuff all the electronics inside the banana but I ended up printing a small shelf in the back for the battery and board.
It drives around pretty quick.

The motor on the front isn't mounted yet. We are discussing methods of for top mounting the motor or using a belt for the spinner.
It is currently only 46grams,

Thanks, don't know what we are doing, but we are having fun.
Jody
Attachments
banana-bot-1.jpg
banana-bot-1.jpg (220.04 KiB) Viewed 341 times

trimfandango
Posts: 5
Joined: Mon May 15, 2017 4:26 am

Re: My first build

Postby trimfandango » Thu Sep 14, 2017 3:00 am

Our step down converter came in today. I wired it into Z-wedge with a switch.
batteries.jpg
batteries.jpg (109.94 KiB) Viewed 312 times

I dialed it all the way down to 5v It seems to run nice like that. I was just going to leave the battery in there. Is there any downside to that?
Z-wedge-wired.jpg
Z-wedge-wired.jpg (182.18 KiB) Viewed 312 times

We also rearranged the motors on the banana-bot to be more balanced. It is so fun to drive around!
https://imgur.com/a/pK5ox
and that little blade can cut through a cucumber!

tomchaps
Posts: 26
Joined: Thu Jul 28, 2016 4:51 pm

Re: My first build

Postby tomchaps » Wed Sep 20, 2017 5:57 pm

Is that a mini-version of the Fingertech weapon blade?

trimfandango
Posts: 5
Joined: Mon May 15, 2017 4:26 am

Re: My first build

Postby trimfandango » Thu Sep 21, 2017 1:25 am

yeah, we thought it looked so cool So I 3D printed a junior version for the banana.

Occashokka
Posts: 433
Joined: Sun Nov 30, 2014 9:34 pm
Location: Stroud,Gloucestershire

Re: My first build

Postby Occashokka » Fri Sep 22, 2017 9:25 am

Leaving the battery in there is fine as long as you can charge it while it's inside the robot!
Team Badger
Has a 3d printer now yay
-£4.82+VAT (intact)
-cool modulated printed thingy
-not yet built nasty mean spinnt thingy

I'm gonna build something huge and stupid, try and stop me :P

trimfandango
Posts: 5
Joined: Mon May 15, 2017 4:26 am

Re: My first build

Postby trimfandango » Tue Oct 03, 2017 9:45 pm

What is the recommended way to attach wheels to the motor?
I have seen some rims that come with screws, or clips but all the wheels I'm able to purchase are friction fit, and they pop off during battle?
Do you glue them on?

Thanks!

User avatar
Shakey
Posts: 949
Joined: Sat Mar 13, 2010 8:38 pm
Location: Reading

Re: My first build

Postby Shakey » Fri Oct 06, 2017 8:34 pm

trimfandango wrote:What is the recommended way to attach wheels to the motor?
I have seen some rims that come with screws, or clips but all the wheels I'm able to purchase are friction fit, and they pop off during battle?
Do you glue them on?

Thanks!


I supply a lot of the wheels used in ants and use a friction fit. Generally in this light of a weight class it's all fine.

Though I often advise a small drop of super glue (being careful to avoid where the gearbox and shaft meet) for people who want it rock solid.
Nuts And Bots - For all your components and ready built antweights!

Alex Shakespeare - Team Shakey / Nuts And Bots:
AWS 44, 45, 49 & 51 Winner - Far too many robots!


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