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Author Topic: Twisted Sick Robotics  (Read 20631 times)

Koolaid64

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Twisted Sick Robotics
« on: January 27, 2015, 10:13:02 pm »
Well looks like I'm here now too. So let's recap some bots in no real order

Fangus and its many versions:

very first bot, had some good ideas but poor execution

second attempt at fangus, got a lot better. Brushless was a big plus but there was still a lot of poor execution like wire ties holding on the top plate. don't do this.   

now we are getting somewhere, much better frame design. Real tool steel for the weapon. first real success was with this bot

this one was a step in both directions some things were improved on and some this were made worse. the weapon for example was stressing the steels weakest orientation.

This guy on the other hand was ten giant steps in the right direction. great frame, very solid weapon,  extremely light shuffling system. great bot all-round 

so good I made a Ti version


next bot to talk about is Szalor:

first build, never made weight really, fought in one rumble then was rebuilt

very solid bot this, weapon didn't have much mass but the bot was a good work horse. never really won any comps but was great to fight and never really got busted up to bad.

updated rebuild with some minor improvements. did about as well as the old version.


Ripto and it's many versions:

first version, how it was meant to be

how it actually was. this was my first shuffle bot. made in a last minute effort to make weight. best thing I ever did

My first attempt at a beetle. some poor design choices, like the three tooth disc made from ti. but it did alright in the end.

and this was when I started to get serious. I had some access to some real machines and was becoming a much better designer.

some minor improvements here, wedge angles and extra support of the outer rails.

stepping up to the 12s now. a little to solidly built, the shock from hit breaks it's own motors. working on that now.

and full circle back to the ants. got to finally try out the tank track belting. works great until someone hits you


Arcbeetle:

a wonderfully dumb drum build, very fun bot. needs a rebuild


Crim:

Fist real attempt at a fairyweight. should have stopped with it really. most successful fairy I've ever built.

v2 trying out 3d printing frames with mixed results.


Dick Dastardly:

the double D was build with longevity in mind and has been standing the test of time very well.


Jukid:

Holy crap what a fun bot. built as a joke with old servos it managed a moto 2nd


Kongol:

It was really cool, up until it exploded.


Massive:

fast and dirty mantis build for bot blast. never really got any good fights out of it due to speed controller issues.


Miss Fortune:

I bought Misfortune from Australia half built with all the parts and finished it. it's slight name change is a simple pun that I enjoy.
 

Torgr:

a semi quick build that made for a very cool bot.

v2 fixed some of it's problems but it still couldn't self-right properly which led to the loop of shame.


Zergling:

goofy little undercutter, worked very well though


Secto:

uber compact beetle. what a pain it was to change batteries


Brisingr:

neat little undercutter built for my cousin to drive


Lady bug:

one day build, mini servo make shitty drives



well that looks like most everything, I will be adding general progress as it happens from now on.

-Kyle
« Last Edit: September 23, 2016, 06:58:17 pm by Koolaid64 »

Ellis

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Re: Twisted Sick Robotics
« Reply #1 on: January 28, 2015, 07:33:43 am »
All of these look like real quality builds. I love seeing the graduation in weapon designs across the various machines.
High performance gearboxes and motors available now (UK stock) - www.ranglebox.com

Harry Hills

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Re: Twisted Sick Robotics
« Reply #2 on: January 28, 2015, 08:34:34 am »
I really love Secto, do you have any more pictures?

Koolaid64

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Re: Twisted Sick Robotics
« Reply #3 on: January 28, 2015, 08:53:21 am »
I have a couple, It was originally built as a full body spinner platform but the shell never came together for it.



« Last Edit: January 28, 2015, 08:55:49 am by Koolaid64 »

Harry Hills

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Re: Twisted Sick Robotics
« Reply #4 on: January 28, 2015, 10:10:46 am »
Supercool. How did you machine the disc/bar?

Koolaid64

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Re: Twisted Sick Robotics
« Reply #5 on: January 28, 2015, 10:40:24 am »
The disc/bar was something I purchased off of another builder. I have no clue what it is original from, maybe an edger blade of some kind.


 so picking up here where I left off on the delphi forums http://forums.delphiforums.com/cjrc/messages/?msg=3561.1 I have some progress.

Fangus got put back together with some much needed upgrades. I didn't take any real pictures of the work though. I replaced the old weapon shaft because it had a slight bend in it. I also recessed the frame and added a bearing for the weapon. which is a big upgrade from just floating in the UHMW. I also am using silver sparks now which I mounted on the fingertech bearing blocks to relieve stress from the gearboxs. I need some new latex tubing and it will be completely finished.


Dick Dastardly got the fingertech timing pulley upgrade which included new weapon hubs. The weapon now has a 2:1 ratio which is quite frightening now.

I also gave it a quick paint job


all four little bots are mostly done now so its time for big bots.


I bought some new a123 cells to make a new pack for Miss Fortune. plus I needed to tidy up the old pack I had which needed help. I bent some copper tabs to 90* and soldered my cells up. then I added my balance connectors and folded the pack up.
   
I then made some cardboard sleeves out of an old cereal box, this will keep the cells well isolated if they should ever overheat.

to finish them off I slide a tube of heat shrink over everything and hit them with the heat gun.


today I plan on getting Miss Fortunes weapon assembly put back together.

-Kyle 



 
 
« Last Edit: January 28, 2015, 10:53:08 am by Koolaid64 »

Infernaltank

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Re: Twisted Sick Robotics
« Reply #6 on: January 28, 2015, 04:03:46 pm »
your bots look fierce as always kyle

Joe Doerfler

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Re: Twisted Sick Robotics
« Reply #7 on: January 28, 2015, 06:37:39 pm »
Did you buy your a123s off of buya123s.com. I just got some and realized that those little aluminum tabs were not one there. How would you recommend putting them on?

Koolaid64

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Re: Twisted Sick Robotics
« Reply #8 on: January 28, 2015, 07:29:22 pm »
I went risky and bought off ebay. I received some good cells though. I used 8 gauge wire that I flattened out a bit to make tabs. then I soldered them on with an 80w iron and some high flux solder.

also if you follow the link in Jims build he shows how he did his with some 12 gauge wire. 
 
-Kyle

Koolaid64

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Re: Twisted Sick Robotics
« Reply #9 on: February 02, 2015, 08:56:37 pm »
ok so I made some progress on miss fortune in the past few days.

First of all I welded up some wedge stops for the back wedge. this way I can't get high centered on my own wedge.

I also made some pulleys for it. here is the double v-belts pulley for the weapon motor

and one nice one for the weapon and a spare that I made out of a slightly short piece of scrap.

the nice pulley mounts up really well

and here's the whole thing assembled. the idler still works perfect, didn't even have to change it. 


-Kyle

BranYoung

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Re: Twisted Sick Robotics
« Reply #10 on: February 02, 2015, 09:24:32 pm »
What kind of weapon motor do you use to power that thing? Also, is that pulley on the weapon simply being held in by the spacer compressing it or is it being attached by some some screws?

Koolaid64

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Re: Twisted Sick Robotics
« Reply #11 on: February 02, 2015, 09:57:52 pm »
the pulleys have four set screws that seat into indents on the shaft
also this is the motor http://www.hobbyking.com/hobbyking/store/__51847__KB_44_74_Brushless_Inrunner_1500KV.html
« Last Edit: February 02, 2015, 10:01:52 pm by Koolaid64 »

zacodonnell

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Re: Twisted Sick Robotics
« Reply #12 on: February 03, 2015, 05:52:38 pm »
What size / type of belts are those? I didn't think you could do an idler for the back of v belts but that setup looks solid to me. A 2600 watt motor is a lot to put through the belts. I'm interested to see how it holds up.

-Zac

Koolaid64

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Re: Twisted Sick Robotics
« Reply #13 on: February 03, 2015, 06:20:14 pm »
they are 2L160. My lathe has a tension idler on the back of a vbelt and it works well.   

Koolaid64

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Re: Twisted Sick Robotics
« Reply #14 on: February 04, 2015, 03:42:54 pm »
Miss Fortune is pretty much done mechanically so I have been working on Ripto.

today I finally fixed corners of the wedge/skirts together. They came out pretty well but would have been better off if I had done it before it got beat on.

 
Also thoughts?


I'm hoping this will be a solution to many problems. Right now the bot is looking at being 4-6oz over weight if I build it with the Ti rails and the improvements I am planning to add.
changing to 3/4" uhmw will save me 8oz alone. I'm also hoping this will help with my shock problem.

-Kyle