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Messages - BDBlu

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61
Tournament Archives / Re: RoboGames - THE OFFICIAL SBV
« on: September 03, 2017, 10:39:54 AM »

62
Tournament Archives / Re: RoboGames - THE OFFICIAL SBV
« on: August 30, 2017, 12:53:47 PM »
Quote from: Badger on August 30, 2017, 12:15:24 PM


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Tournament Archives / Re: RoboGames - THE OFFICIAL SBV
« on: August 26, 2017, 12:53:14 PM »

64
Off-Topic Discussion / Re: Back to School Thread
« on: August 23, 2017, 10:58:44 AM »
I got my AA in Gen Ed last semester, and I'm putting it on hold to focus on work.  Will be focusing on B.S. in Math Education for high school once I have enough time from work.

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Discussion / Re: Which bot are you most proud of?
« on: August 23, 2017, 01:03:57 AM »
The god of stocks.

66
Tournament Archives / Re: RoboGames - THE OFFICIAL SBV
« on: August 16, 2017, 07:22:33 PM »

67
Tournament Archives / Re: RoboGames - THE OFFICIAL SBV
« on: July 24, 2017, 11:38:28 PM »
I was under an impression that we have 4 days to pick which modular before each fight, instead of pushing out with everything right off the bat.  That doesn't seems IRL personally, but I'll submit my sheet.  Almost done with it and will finish it on my next day off.

68
Tournament Archives / Re: ADOT IRL Tournament - THE OFFICIAL SBV
« on: July 10, 2017, 12:46:20 PM »
Quote from: Guldenflame on July 09, 2017, 08:37:58 PM

My response.

69
Robots Showcase / Building my first IRL robot!
« on: June 22, 2017, 11:34:29 PM »


Not all the parts arrived, but I got what I need to start my build.  I'll be building the frame out of UHMW and use the titanium as an armor.  Bonus point if you know what I'm building.  :thumbup  Will be posting more pictures and update as times pass.  I got 3 and a 1/2 weeks deadline before my first competitive appearance.

70
DSL TC Showcases / Re: MasterTech... errr.... BDBlu's DSL SC
« on: May 19, 2017, 04:28:54 PM »
Because I was a newbie back then. lol.  I think I had an idea of using the spike strip to "hook" a robot to slam against the wall or something when I originally built it.

71
DSL TC Showcases / Re: MasterTech... errr.... BDBlu's DSL SC
« on: May 19, 2017, 03:57:31 PM »
More DOT's tournament bots.


Shuriken is my LW with fuax-FBS.  Also competing in the Redditbots LW.


Redditbots's fan favorite reject!  Huge amount of power as it was to deal a one hit KO, but like its name... it can fly with a little tap.  Hellacopter inspired me to build this.


In DOT's words...  The Robot.  The Myth.  The Legend.
RG has been rebuilt to be more modernized.  I know the drive motors aren't IRL, but DOT was nice enough to fix it for me.  Thanks!

From this point on, I'll start building more with tips.  Any advice and tip will be appreciated!

72
DSL TC Showcases / MasterTech... errr.... BDBlu's DSL SC
« on: May 17, 2017, 10:12:01 AM »
Been a while, but I figured it's time for me to show off my capabilities.  I'll start off with my submissions for DOT's tournament.  First three are my AW, BW, and CW.


Sun Shine is a unique AW.  Why unique?  Undercutter!  I know it's not effective, but I felt like it's needed to be done and submitted.


 Grinder is my BW with primary weapon a giant saw.  I was inspired by a real bot which is built the same way but with less chassis.


This is a CW category.  It is a slightly smaller version of my redditbot entrance, ROFLcopter.  It was voted as a fan favorite even tho it was rejected.  This version is little more stable and quicker than it's bigger original.

73
Real Robotics Discussion / Re: Design concept and internal check
« on: September 02, 2015, 12:46:35 AM »
Quote from: R1885 on September 01, 2015, 11:56:04 PM
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.

Quote from: R1885 on September 01, 2015, 11:56:04 PM
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.

Quote from: R1885 on September 01, 2015, 11:56:04 PM
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?

Quote from: R1885 on September 01, 2015, 11:56:04 PM
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!

Quote from: R1885 on September 01, 2015, 11:56:04 PM
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.

Quote from: R1885 on September 01, 2015, 11:56:04 PM
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.

74
Real Robotics Discussion / Design concept and internal check
« on: September 01, 2015, 10:33:29 PM »
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!  :smile:


(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?

75
Real Robotics Discussion / Re: Battery power question
« on: August 17, 2015, 06:54:34 AM »
Quote from: R1885 on August 17, 2015, 12:59:49 AM
You don't need a drive chain, the gear box is already doing the work.
If you are going to fabricate a custom drum, but don't have the ability to machine it, draw up the sketches in a CAD program such as E-Machine Shop and have a a big shop such as Big Blue Saw or Team Whyachi Bot Shop make it for you. More expensive, but they're likely to have superior equipment than what you have at home. Also, if you're going for the Saifu chassis, remember that it was designed for an all in one drum with motor built into it, so you will either have to make your own all in one drum, or you will have to modify the chassis to accept a stand alone motor.

I meant the drive chain for the drum motor that we found at a store, not the drive motor.  My apology for not clarifying.  Thanks for linking those 2 links, but they are a bit out of the price range.  We can come up with something.

76
Real Robotics Discussion / Re: Battery power question
« on: August 17, 2015, 12:20:12 AM »
Quote from: R1885 on August 16, 2015, 11:23:47 PM
A good place to start is to look at the top ant drums right now: The Bomb, Saifu, and Klazo.
All of them have an inbuilt brushless out-runner outrunner  motor incorporated into the drum, Saifu and Klazo use a form of the Turnigy SK3 motor, while the Bomb uses a type of AXI Gold series motor.
Be warned though, a drum needs a lot of machining to get right, anything wrong can send the whole system out of whack, start with a bar from an weed-whacker edger,

We are thinking about ordering Saifu's chassis and fabricate the drum.  The Turnigy motor certainly beat out the motor we came across at a hobby store.  The thing is a bit too big and my dad suggested building a drive chain (which is a dumb idea since I don't have the tools) so we'll keep that as a back up just in case if we can't find another motor.

Quote
Also, has anyone mentioned that spinners are extremely dangerous? Even an ant spinner can slice your skin straight down to the bone, and then some. Use extreme caution, or you'll be visiting the emergency room.

This is the first thing we discussed while planning the bot.  We are aware of the danger and I have enough room in my garage to build a safety cage if I want to test against harder targets.  We are taking each steps as cautious as we need.

Quote
Absolutely happy to help! Welcome to the wonderful world of engineering. To back up what R1885 said, never forget safety, it is truly crucial. Don't spin up a weapon anywhere near you for the first few times or hits.

I didn't realize how fun building a bot is. Haha.

77
Real Robotics Discussion / Re: Battery power question
« on: August 16, 2015, 09:50:07 PM »
Quote from: Somebody on August 16, 2015, 04:46:58 PM
The easiest way to fix or build something is to understand it.

https://www.khanacademy.org/science/physics/circuits-topic

It will absolutely be worth learning, and will save you money and time. This is more of a general overview on circuits and not related to batteries much at all. But knowing how voltage, current, and resistances work will be crucial for you to pick the right batteries for your robot, and help you make logical decisions when wiring.

I really appreciate this!  I learn all more of these within a hour than a full year in high school.

Quote from: R1885 on August 16, 2015, 04:49:33 PM
An idea of what motors your planing on using would be nice.

We are still deciding on the drive motors.  We know geared motors are best for it, so we're scanning through robotmarketplace.com.  We need 2 geared motors and 1 non-geared for drum spinner.  We have a tight budget for this and it is something we want to do for fun, and possibly competitive if there are enough events.

Any recommendation?

78
Real Robotics Discussion / Re: Battery power question
« on: August 16, 2015, 04:46:02 PM »
Really?  I know some people burned out their motors by using too much voltage, so I was being cautious.  Do you have any reference for antweight circuit board?

79
Real Robotics Discussion / Re: Battery power question
« on: August 16, 2015, 04:35:50 PM »
Just an example.  I basically need to restrict the battery's output to the required motor's input?

80
Real Robotics Discussion / Battery power question
« on: August 16, 2015, 03:34:27 PM »
My father and I are planning on building an antweight for fighting purposes.  The idea is 2 wheels with drummer.  We plan everything except one thing... we have little to no experience with electronic setup.  How much power do we need to transfer from the battery to the motor? Does it take away the total amount?  For example, 3V motor connected 7.4V battery.  Does it take away 3v and leave it at 4.4V for anything else?

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