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1

Robots Showcase / TDS minor CNC service

« on: May 02, 2016, 01:31:36 PM »

Hey dudes, I'm looking at possibly doing CNC work for people as a way to have more money to spend on more robot stuff :)

Ideally this would be a much lower cost alternative to machine shops, and I expect to be doing a lot of those one or two critical parts that can't be made by hand, weapon discs, machined frame rails, weapon teeth, stuff like that.

Since I really dont care how long a job takes, I'll be forming something of a "this is a pain in an ass" billing scale, charging you for doing things like making soft jaws and such, rather than straight machine time, because honestly this thing is idle 99.9% of the time anyway.  and material (I highly suggest just buying scrap drops off of ebay and having them shipped right to me rather than pay shipping three times)

So rather than throw out a "hey do you guys want this" because obviously you do, shoot/post up some pictures of parts/material and what approximately you'd want to spend on it (or did spend on it so I know what to beat) so I can make sure my pricing makes something in the realm of sense when I ramp this up to production.

2

Robots Showcase / TDS

« on: August 12, 2015, 03:53:51 PM »

So, i've been designing and building my first bot in quite a while, it will be a 30lb sportsman

via a challenge issued at botblast, it will be a pneumatic hammerbot.

Since I dont have time to fabricate my own cylinder, I'm using a bimba 4" stroke cylinder I found on ebay


its rather big



okay its really big

This will be run on HPA to a chain driven cam based rack and pinion mounting a ~18 inch arm
Pseudo math that I may have done wrong because piston speed calculation is dicey has the hammer clocked in at 317mph at impact @200psi (everything is rated for 300psi)

2x banebots 16:1 's to 3" wheels 4wd (because 2wd is stupid)

Much of the cad is unfinished so nothing fancy yet, a majority of the parts should be arriving by friday this week and the weird shaped stuff like the HPA tank can be measured properly at that time.
I am currently super concerned that I am overweight, with a vast majority of the internals, and rounding up every part I am at 15.5lbs without a frame, hammer arm, screws, wires, ect.  The problem is trying to house the gas tank and cylinder makes the frame gigantic (I was showing ~4lbs per frame member and i need 4) which has me gravitating towards blue saw waterjet 3/8" 6061AL or 1/2" or so UHMW instead of aluminium because weight.

Another idea is to make a judge-style frame that is basically a big strong baseplate and a titanium shell, since I can't weld titanium it would be achieved with a bunch of aluminium bearing blocks.

We'll see how the layout goes once everything comes in.

The funny part is I know exactly how to get ruin V2 to work and be much lower profile (and have a proper 180+ degree hammer swing) but i'd never get it done in time for nerc franklin, so this is sort of a stopgap bot to find any problems that may arise running a hammer with 1700lbs of thrust

3

Discussion / Mods and somesuch

« on: July 23, 2012, 07:39:02 AM »

So, what mods (or lack thereof) do people use for multiplayer these days?
I just nabbed a big mod torrent of some sort and its like someone dumped every mod anyone ever made into one folder and never bothered to balance anything.