JaZzMaN251's Build Log

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JaZzMaN251
Posts: 3
Joined: Fri Jun 08, 2018 11:20 am

JaZzMaN251's Build Log

Post by JaZzMaN251 » Tue Jun 12, 2018 11:40 am

Hi everyone,

I signed up a couple days ago to find some more info about Antweight Bots.
I have no experience building bots, but I'm into RC a couple years, so I have a basic understanding of how the components work.
The past days I sourced some parts to build my first bot and started working on a first design.
Parts will probably arrive in 3-4 weeks or so :)
I'm going for a pusher with a wide scoop/wedge that is also able to drive upside down.

Parts (for this bot):
- N20 Geared Motors (600RPM)
- Wheels (34mm)
- Dasmikro 2S6A ESC
- OrangeRx R614XN
- 180mAh 2S
- On/Off switch

Parts (for future designs):

- MG90S Metal Gear RC Micro Servo
- Eachine 1102 brushless motor (probably a bit too high kV...)
- Emax Bullet 6A esc

Chassis is 2mm thick box with a solid scoop/wedge in front, held by two screws.
I'm going to print the chassis and scoop/wedge in PLA.
The main goal is to build a solid first bot that can take some beating and last the duration of a match.

Any advice/feedback is welcome!

Does anyone know if there are competitions in Belgium/The Netherlands?

Here are the first design pictures (the back obviously is normally closed):
front.jpg
front.jpg (180.06 KiB) Viewed 211 times
internals.jpg
internals.jpg (206.99 KiB) Viewed 211 times
Last edited by JaZzMaN251 on Tue Jun 12, 2018 11:53 am, edited 1 time in total.

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DieGracefullyRobotics
Posts: 118
Joined: Mon Apr 02, 2018 7:39 am

Re: JaZzMaN251's Build Log

Post by DieGracefullyRobotics » Tue Jun 12, 2018 11:53 am

Hi.
There is quite a predominant Dutch community of roboteers. They mostly play at the Dutch Robot Games (or FACTS more recently) which is worth a Google, or they cross over into Germany for Mad Metal Machines. They are a great bunch of people, very welcoming.

The robot looks nice and solid. Good luck with it.
Dave
Die Gracefully Robotics - Barely Even a Proper Team.

MichaelG92
Posts: 20
Joined: Sat Apr 14, 2018 8:10 am
Location: Surrey

Re: JaZzMaN251's Build Log

Post by MichaelG92 » Tue Jun 12, 2018 1:21 pm

I do like the design! Seeing as it’s invertible have you considered make the scoop into a “c” shape so that you can use it both ways up? And you may want to consider putting something on the back to stop it getting stuck if you get flipped, like a curved back perhaps?

Good luck building!
Michael - Team MG Robotics

Fledgling Surrey based roboteering team

JaZzMaN251
Posts: 3
Joined: Fri Jun 08, 2018 11:20 am

Re: JaZzMaN251's Build Log

Post by JaZzMaN251 » Tue Jun 12, 2018 1:36 pm

DieGracefullyRobotics wrote:
Tue Jun 12, 2018 11:53 am
Hi.
There is quite a predominant Dutch community of roboteers. They mostly play at the Dutch Robot Games (or FACTS more recently) which is worth a Google, or they cross over into Germany for Mad Metal Machines. They are a great bunch of people, very welcoming.
The robot looks nice and solid. Good luck with it.
Thanks for the directions! I'll look into it!
MichaelG92 wrote:
Tue Jun 12, 2018 1:21 pm
I do like the design! Seeing as it’s invertible have you considered make the scoop into a “c” shape so that you can use it both ways up? And you may want to consider putting something on the back to stop it getting stuck if you get flipped, like a curved back perhaps?
Good luck building!
I did consider a "c" shape, but I'm a bit hesitant to go that way to avoid vertical spinners have something to grab onto and catapult me into the air.
Since I have no experience in robot battles at all, I don't know if this is a valid reasoning.
Another option is to have the same scoop upsidedown on the backside and drive it backwards when inverted.
The curved back idea is great. I'll look into that! Thanks!

JaZzMaN251
Posts: 3
Joined: Fri Jun 08, 2018 11:20 am

Re: JaZzMaN251's Build Log

Post by JaZzMaN251 » Wed Jun 13, 2018 7:44 am

I've printed my design and tried to put the parts together for the first time.
The battery (only component that's already delivered) fits perfectly between the two motor mounts.
Both motor mounts are held together with M3 bolts, so is the scoop.
My only concern with the scoop is, that it will break off quickly because of the horizontal direction it's printed in.
The assembled chassis weighs in at 50 grams. The components I'll use weigh around 53 grams (wires not included) so I think I'm good for the weight limit.

- Is it preferable to build your bot up to the 150g weight limit, even if you can go under? I was thinking that mass could be an important aspect when battling?

- Any advice or tips when using 3D printed parts on these bots?

Some pictures of the progress so far:
IMG_8780.JPG
IMG_8780.JPG (86.35 KiB) Viewed 139 times
IMG_8782.JPG
IMG_8782.JPG (106.86 KiB) Viewed 139 times

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DieGracefullyRobotics
Posts: 118
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Re: JaZzMaN251's Build Log

Post by DieGracefullyRobotics » Wed Jun 13, 2018 12:20 pm

I rarely tend to go up to the weight limit. My ants usually max out at about 130g nowadays without significant disadvantage.
Dave
Die Gracefully Robotics - Barely Even a Proper Team.

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