Author Topic: TDS  (Read 22325 times)

Offline TDS

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Re: TDS
« Reply #100 on: December 16, 2015, 02:28:51 PM »
The big bar spinner beetles in the UK just have a tendency to rip themselves apart. Or be ripped apart. Or break down.

They don't have blind patriotism to hold them together? :)

Offline TDS

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Re: TDS
« Reply #101 on: December 16, 2015, 02:37:29 PM »
Anyways, design still continues on it, I'm going to wait for the last minute to register for moto, depending on how the cnc's doing this week.

its even dumber viewed from the size (design subject to change)



the whole body will be machined out of solid 1" 6061 plate, i'll then make an angled fixture and machine the angle on the bottom, the "lid" will actually be the base.

The trick to this, is that the blade is going to be a fancy composite which should absorb a LOT of the impacts, the point isn't to hit things so hard that both bots explode, it is that I have a gigantic, hard hitting keep away stick that I can angle exactly where it needs to be for my opponent.

Offline Philippa

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Re: TDS
« Reply #102 on: December 16, 2015, 06:13:54 PM »
Dude your chassis is gonna do all the spinning here.

Offline TDS

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Re: TDS
« Reply #103 on: December 16, 2015, 06:31:08 PM »
Dude your chassis is gonna do all the spinning here.


Offline RedAce

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Re: TDS
« Reply #104 on: December 16, 2015, 06:34:32 PM »
So in a way, it's kinda like Cloud with his absurdly huge Buster Sword.

Interested to see how this will actually do.  How heavy will that blade be anyway, and how much will that be compared to the estimated weight of the robot?

Offline TDS

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Re: TDS
« Reply #105 on: December 16, 2015, 07:30:33 PM »
In its current form I have it clocked in at 1.2something pounds, I'll probably take an inch or two off to add steel caps or increase the size of the holes  to keep it a little under half of the bots weight

Offline TDS

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Re: TDS
« Reply #106 on: December 26, 2015, 05:59:57 PM »
got the cnc and probe working finally, we have entered full production mode

First test run was the most complex part: the sprocket cams, came out okay, actually works, but finish is bad, and some misc mistakes caused by feed rate and backlash being set a little too high



Just started wheelpods

Offline TDS

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Re: TDS
« Reply #107 on: December 27, 2015, 04:10:13 PM »
and we have wheelpod


Offline Somebody

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Re: TDS
« Reply #108 on: January 05, 2016, 06:17:28 PM »
Saw this and thought of you. Big bar spinners on a tiny chassis!

I built that big robot on that TV show that time


Offline TDS

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Re: TDS
« Reply #109 on: January 06, 2016, 07:42:53 AM »
if you look at its previous fights it was badly unbalanced from dbm running a S7 plow against it.

Offline TDS

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Re: TDS
« Reply #110 on: January 11, 2016, 09:46:27 AM »



Offline TDS

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Re: TDS
« Reply #111 on: January 11, 2016, 09:48:14 AM »

Offline TDS

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Re: TDS
« Reply #112 on: January 24, 2016, 10:50:54 AM »
CNC'd some uhmw wheels, without tread they are a whopping .07 pounds each


Offline Serge

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Re: TDS
« Reply #113 on: January 25, 2016, 05:02:15 PM »
Hey man, show us some of that machining porn! What kind of mill are you using?

(also, yes, your finish is quite bad, well, depends how much you enjoy toolmarks :D)
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Offline TDS

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Re: TDS
« Reply #114 on: January 25, 2016, 05:05:15 PM »
Ive been dialing it in since the sprocket, but I dont flycut, or finishing pass parts that aren't press fitting and everything is being done with a rougher, so it is what it is

Offline Serge

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Re: TDS
« Reply #115 on: January 25, 2016, 05:29:54 PM »
Yeah, the sprocket was awful, but it does look better from there.

Come on, show us some pics of your setup, I'm a sucker for some behind the scenes footage. Been doing some lightweight machining recently (on a crapped out Bridgeport Series 1 MDI), and I need some inspiration :).
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Offline TDS

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Re: TDS
« Reply #116 on: January 25, 2016, 05:45:09 PM »
Its a ~60 year old benchmaster mill with a cnc conversion I made, thats it, it isn't pretty, a lot of my time is spend working around the travel and head room limitations, I could make some awesome stuff with something the size of a bridgeport regardless of backlash or issues.


Offline Serge

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Re: TDS
« Reply #117 on: January 25, 2016, 05:49:53 PM »
If you're getting decent results with that setup then it means that you know what you're doing :). That conversion isn't bad at all. The Z motor moves the knee, and the quill is fixed, right?

Anyway, keep up the great work! I'm moving in a few days, so I'm abandoning my Hackerspace's machine shop and need to find something new. Maybe I'll build a combat robot as a test of the new workshop capabilities..? :D
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Offline TDS

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Re: TDS
« Reply #118 on: January 25, 2016, 05:56:17 PM »
Yep, no quill, its all static, i'm actually mostly winging it, if I really wanted to make really pretty parts, I could, just right now i'm in a crunch for moto not trying to win a fashon show.

Despite what machinists want people to think, their job is pretty much just basic math and geometry and isn't really that difficult.  When you get into serious production run stuff and trying to minimize time and maximize money, okay it gets a little complex, but just "hey make this thing" is surprisingly simple stuff, cnc added something of a dimension of complexity with remembering zeroing and machine home, but simplified not needing a rotary table and all kinds of tooling to get around the fact that a person can only move in one axis at a time.

Offline TDS

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Re: TDS
« Reply #119 on: January 26, 2016, 10:34:03 PM »
front sections pretty much all done