Design concept and internal check

[BDBlu]

As I mentioned before ( in this post: https://gametechmods.com/forums/index.php?topic=17965.0 ) and after few "meeting" we (my father and I) finally came up with this draft.  Yellow colored section is an adjustable attachment.  Side armour is a small wedge that can be replaced quickly if we took damage from another spinner (or what my dad called, "grinder").  4 small points are adjustable to raise or lower the weapon.  Red section is a wedge that can be inverted.  Please share your thought and suggestion if there is something better than what is listed, thank you! 


(Imgur link isn't working for some reason, here is a link to it: https://imgur.com/YCAWQZm)

Battery: https://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=26470
Weapon motor: https://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=34577
-We did found another motor that is lighter, faster, and cheaper.  So for now, we'll stick with this.
ESC1: https://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=68537
ESC2: https://www.sparkfun.com/products/13204
Drive motor: https://www.sparkfun.com/products/12518
Transmitter (controller): https://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=19673
Power switch: http://www.robotmarketplace.com/products/0-FT-MINI-SWITCH.html
-We're expecting High Roller to be slamming against the wall by it own forcepower, so this power switch is best for it.

Which leave this one question, what kind of reliable transmitter and receiver that is best for the Turnigy controller within a budget?

[R1885]

Some thoughts:

The whole design is way to narrow. With the high speed gear motors, turning will be near impossible with the drum on.

The motors are geared way too low, any wheels bigger than three quarters of an inch will bog the motors and fry them. Consider this gear motor instead.

Faster does not equal better. Unless you're going drum to drum, excess speed is actually a detriment, as the drum will struggle against even flat sides. The motor you've listed is already spinning at over 12000 RPM, unless you have a single toothed blade, it will struggle to gain any bite against an opponent. Consider a lower Kv motor, or gear down the motor somehow.

You should consider a Car ESC, which will allow your motor to reverse. Can be a life saver for an invertable drum.

Also consider this radio, its much cheaper and has been shown to fail safe too(You will need a programming cable, however).

Your parts list looks suspiciously like Sgt. Cuddles. While its fine to use some parts with some consideration, you need to understand why he used those parts. Also, I need to point out that Sgt. Cuddles performed very poorly at Robogames.

You really, really, should not make your first bot a drum. Drum bots are not easy to design or construct. The first bot is already a hand full and adding a weapon makes the whole thing worse, really think about starting with a static wedge(The Fingertech Viper or the Rovparts Ant1 are very simple and comparable in price), then once you understand how it all works, you can add to it with more vicious weapons. It's really worth starting with a simple bot, just getting the thing to start up is in self an adventure.

[BDBlu]

The whole design is way to narrow. With the high speed gear motors, turning will be near impossible with the drum on.

We still haven't decide on the length and width as we need to gather the parts for more accurate size.  I kinda compounded the imgur so it looks narrower than it is.

The motors are geared way too low, any wheels bigger than three quarters of an inch will bog the motors and fry them. Consider this gear motor instead.

Really?  We must have looked at it from a wrong perspective!  Funny thing is, that motor is actually similar to what we found, but it has ~10,000 rpm from what we were told.

Faster does not equal better. Unless you're going drum to drum, excess speed is actually a detriment, as the drum will struggle against even flat sides. The motor you've listed is already spinning at over 12000 RPM, unless you have a single toothed blade, it will struggle to gain any bite against an opponent. Consider a lower Kv motor, or gear down the motor somehow.

Noted.  The custom teeth we came up with is a bit heavy than your average drum teeth, and we are taking that in consideration.  Safe zone is 8,000 to 10,000?

You should consider a Car ESC, which will allow your motor to reverse. Can be a life saver for an invertable drum.

Also consider this radio, its much cheaper and has been shown to fail safe too(You will need a programming cable, however).

I knew there is something out there!  Glad I asked on here!

Your parts list looks suspiciously like Sgt. Cuddles. While its fine to use some parts with some consideration, you need to understand why he used those parts. Also, I need to point out that Sgt. Cuddles performed very poorly at Robogames.

It is, and he doesn't explain why he uses those parts, just how they connect.  I am aware of his performance, and I watched his matches, along with Saifu's matches as well.  See what works and what doesn't.

You really, really, should not make your first bot a drum. Drum bots are not easy to design or construct. The first bot is already a hand full and adding a weapon makes the whole thing worse, really think about starting with a static wedge(The Fingertech Viper or the Rovparts Ant1 are very simple and comparable in price), then once you understand how it all works, you can add to it with more vicious weapons. It's really worth starting with a simple bot, just getting the thing to start up is in self an adventure.

Noted.  I've been wanting to build a simple bot just to get an idea and some experiences on robotic controlling.  I can assure you that High Roller WILL NOT be the first bot.  It's a plan that we will get to it at some point.

[R1885]

Really?  We must have looked at it from a wrong perspective!  Funny thing is, that motor is actually similar to what we found, but it has ~10,000 rpm from what we were told.


Noted.  The custom teeth we came up with is a bit heavy than your average drum teeth, and we are taking that in consideration.  Safe zone is 8,000 to 10,000?


It is, and he doesn't explain why he uses those parts, just how they connect.  I am aware of his performance, and I watched his matches, along with Saifu's matches as well.  See what works and what doesn't.

For reference, you want about 500rpm to 1000rpm motor output speed, but don't forget that wheel size is also important(A pair of two inch wheels would be fine for some motors, bog down for others, and be too small for some)

Depends on what the drum is like, if you have two teeth then about 8000 would be fine, if you have one tooth then around 10000 is fine. Also, you might want to have a little extra rpms in reserve to combat other drums(Faster one wins)

Other good ant drums to look at would be The Bomb, Klazo, Poco Tambor, Gyroscopic, Algos,and Emsee Pee Pants. Other bots worth looking at would be Bit Vicious and Dark Pounder.

[TDS]

the drum supports should be forward of your expected point of impact so that you don't pull a frontie and eat the floor.  at the very least they should be slightly forward of the axle