Progress so far on the walker project.
Attachment 5890
Attachment 5891
Printable View
Progress so far on the walker project.
Attachment 5890
Attachment 5891
That is so cool!
What do you plan to do for feet to get enough grip on the floor? Can't wait to see this thing walking around!
Hi just a video on the test out a 1/2" valve for the weapon! and Giles for grip I'm going to see how it goes, but there are always bike tyres.
https://www.youtube.com/watch?v=SAB1W__zgMA
Compressors for the walker leg mechanism.:D
Attachment 5909
Hi testing valves again for the weapon for the new Walker. I'm thinking of calling it Seraph as the old Seraph has been retired. Mainly because it was ignored as the weapon was considered infective. The new Seraph wont be ignored. I am planning on this being a robot killer! be warned.:)
The valve test was very effective and with two compressors and two receivers the flow rate will be very good, I'm not sure what weapon it will have but probably a sword.
Enjoy the video.
https://www.youtube.com/watch?v=Z4OL9tbL5Vg
Just got the valve assemblies going still need a bit of work but they seem OK.
I'm hoping to get the robot mobile at least in a test mode in the next couple of weeks,
Bits ordered for the weapon actuator and a video of that coming soon hopefully.
Attachment 5926
Can anyone help I'm looking for Some rubber tube exactly like a car inner tube but not formed in to a circle as the picture shows. I'm looking for some tubing the same about 75mm in diameter but in stock lengths, does anyone know of a supplier for this type of thing (it's for a pneumatic muscle) for the walker weapon!
thanks
Attachment 5943
I'm looking for some parts and am looking for recommendations.
the parts are
1/ V-Tail mixer
2/ BEC
3/ Rx plug-in capacitor.
has anyone have any suppliers they recommend for these?
Thanks
Craig
i bought this a few years ago and seemed fine.
http://www.ebay.co.uk/itm/Etronix-Re...AAAOSwintXSIxq
The Dimension Engineering BEC has been very reliable http://www.dimensionengineering.com/products/parkbec It is probably the smallest BEC available.
Still carrying on with the Walker project. there always seems so much stuff to put in the robot when you decide to do a walker! where to put everything is a real pain!!
Attachment 5973
Attachment 5974
Parallel to this I'm developing a new weapon system for the walker, I'm doing this in tandem, as if making a walker wasn't enough. the design is progressing well and the pneumatic actuator has performed well I'm hoping to develop a reliable sword or axe actuator for the walker, if it works the way I'm hoping it will be fun!
Attachment 5975
Attachment 5976
Some pipework for the walker looks like a Monty Python type thing!
Attachment 5982
Attachment 5983
Three Dr Peppers! that should spice things up a bit!!!
Please don't be fooled by this I am designing probably the most powerful Featherweight axe/sword robot ever made. the bottles 2Ltrs each are connected by 22mm diameter copper tube, the flow rate through the proposed valve means the sword will work at maximum efficiency through out it's travel.
Ah but I've said too much!!!!! :)
Attachment 5985
Hi I have just got this email and wondered if anyone else has received anything similar.
Dear Mr Colliass,
I am writing in the hope that you are the same Mr Craig Colliass of Team Saint in Robot Wars. Bear with me as this may seem like an unusual request, but I think it will make sense by the end.
My name is Kent Boehm and I am the Head of Research at The Meikle Files, an organisation dedicated to the study of human high performance. I am writing to enquire as to whether you would be willing to participate in short interview with our founder and CEO, Andrew Meikle.
Andrew has spent much of the past 25 years travelling the world, interviewing people who have achieved extraordinary results in their field, or those who have insight into the philosophies and psychology of high performance, or great expertise in their field. He has invested much effort into studying human endeavours that are in one or more ways remarkable or unique.
This pursuit has involved interviews with leaders like Nelson Mandela, scientists such as Richard Dawkins and Nobel Laureate Brian Schmidt, adventurers like Sir Edmund Hillary as well as athletes, futurists, law enforcement professionals and leading business figures among others. Andrew has also studied high performance environments such as NASA, The Royal College of Music in London, Harvard Business School, The Juilliard School of Performing Arts and many of the world’s leading universities and schools.
Andrew will be in Oxford from the 30th of July until the 6th of August, and part of my job is to find interesting and unique people for him to speak to. Your name came up in an article about Robot Wars and I was hoping you might be willing to chat about the competition in general and perhaps show him the robot. He would be interested in your motivation and some information about the competition, and what drives you to invest your time into the hobby. I think there is a unique take on high performance here and I would like Andrew to explore it with the people who are involved at a grassroots level.
It would take less than an hour and would be conversational in format.
Thank you so much for your time. Feel free to reply with any additional questions you may have about our work.
Kind Regards,
Kent Boehm
Sounds interesting but a little unusual even in my world!
"Human high performance"... smells of Cybermen to me! ;P No but seriously, this sounds quite interesting, and I hope it goes well if you decide to take part. You should show them the walker, that'd raise a few eyebrows no doubt.
this looked interesting has anyone used this type of thing before?
http://www.ebay.co.uk/itm/DC-High-To...cAAOSwvgdW3-Zl
Ooo, nice find *delves in for some research*
Thats a nice unit!
That is an impressive test, does anyone know were the tester got that output coupling for the unit I might use one of those if I could get the coupling too it looks to have the necessary flat in it rather than relying on a grub screw.
https://www.youtube.com/watch?v=rPN92jVIs6o
They have the hub and a few different motor models here: http://www.ebay.com/sch/wingxine/m.h...1&_ipg=&_from=
OK just wondering what plugs you normally fit to the RoboteQ speed controllers I'm trying to go away from Anderson connectors but the wires are so big, EC5 connectors wont fit over the insulation, any advice I'm thinking of going for the EC 6.5 but they are so expensive. are there any reasonably priced suppliers?
thanks
When I had a RoboteQ many years ago, I used small battery lugs and home-made terminal blocks. The combination was less bulky than having a number of Anderson connectors and was very reliable. Nowadays, maybe the Hobbyking XT150 connectors would work.
Time for some work on Gabriel
As you can see there is still plenty of wear left on the motor brushes the motors are now coming up to 2 years old and I think there is only just over 1mm wear on them so all good there I checked the commutator and that looks OK too
Attachment 6068
Some thing has gone through the sprocket! Probably bits of a robot I smashed up! :)
I am changing the ratio for this season It was 36.3:1 now 33.3:1 This means the speed has gone up from about 12mph to 13mph these are real figures not fairyland over the rainbow down a cliff hope for figures. This means the sword will swing 180degrees in 0.25 seconds instead of 0.30 seconds or there about.
Attachment 6069
I'm looking for a company that does plasma or water jet cutting (for armour steel) near me post code OX12 I have had a look on the net but nothing looks promising. or who do you use?
They aren't near, but if you need ease/speed, https://k-cut.co.uk/ are almost always next-day. Yes, they're a sponsor, but loads of builders use them - they're genuinely very good for robot stuff. 4, 5, 6, 8 and 10mm Hardox kept mostly ex-stock for cutting via waterjet.
email sent thanks Ellis. :)
or my sponsor;
wearpartsuk.co.uk
They stock all thickness hardox, armox, other brand wear steel etc, they made a lot of parts on carbide, cobalt, storm 2, ironside, house robots etc etc :)
They do mostly plasma cutting but also offer CNC milling of hardox etc
Craig you all did great last night! GO ON MY SON!!!!
+1 for Mouldy's sponsor. I contacted them Monday morning to see if they could do a lot of Hardox parts cutting with a quick turnaround and they had it done by and posted out on Wednesday. Really friendly to speak to as well, the guy kept phoning me to give me updates on it. Had some stuff from K-Cut recently too. Plasma cut stuff does have a small radius on internal corners whereas the waterjet stuff is a bit sharper, but I found the general finish to be much nicer on the plasma stuff.
When finished it will look exactly like this. :rofl:
https://www.youtube.com/watch?v=M8YjvHYbZ9w
Useful info for your walker would be Boston Dynamics Patents and any open source software already out there for walkers.
http://www.freepatentsonline.com/8126592.html
http://www.freepatentsonline.com/8973613.html
http://www.freepatentsonline.com/7734375.html
http://www.freepatentsonline.com/7398843.html
https://www.poppy-project.org/en/technologies/ < don't know anything about this...
https://opensource.com/life/16/4/ope...otics-projects < or this, but you get the idea.
Thanks for the good wishes and advice guys much appreciated.
It was strange seeing me on telly I have to say I didn't much like it at first! I'm getting used to the idea of it now.
The fights were a lot different to how I remember them. we got a lot more hits on Pulsar and Chompalot in the Chomp fight we really went for DM but no sign of it in the program.
Hoping to do better if they have an S2 and they want us.
BTW Alex from TR2 is auctioning bits of Gabriel and my coat goggles and scarf used in the Program. if you know someone who would like the bits let them know Alex posts on Unofficial Robot Wars if you want any more info.
Between 400 & 600psi typically. Depends a lot on temperature and type of bottle. The smooth walled bottles perform better than faceted (like coke bottles).Quote:
Originally Posted by craig_colliass
When they blow, they make a loud bang - but the shrapnel is so light and encounters so much aerodynamic drag that it doesn't present much danger of injury. I still wouldn't want to be next to it.
I used to have access to dry-ice. Much fun putting dry ice in a bottle, screw the cap on and wait for the bang! The figures above were obtained using a pressure gauge on the bottle.
Si
Hammer for the robots, I think I might let Saint have a play with this one. the ends are quite hard!
Attachment 6209
Hi I@m Looking for a new resistor
Attachment 6318
I think it's about 510 Ohms with a 5% tolerance
the colours are green red red gold or green brown brown gold about 6-7mm long
not normally my field any ideas?
That'd be 5100 Ohms, or 5.1k Ohms (1st band green (5), 2nd band brown(1), 3rd band red (two 0s)) with gold (5%) tolerance. And of course you'll want a through-hole component.
This should do: http://uk.rs-online.com/web/p/produc...FQIM0wodBMcMng
Though it might be easier to visit your local electronics store and just ask them.
Shuffle mechanisms? I'm thinking of doing a HW shuffler in the future what mechanisms have been tried in the past and what were the pros and cons?
Thanks
Pitter Patter in the US uses cams to shuffle, as did Overhaul at last year's Battlebots (only in the whiteboards though)
They seem good but a little bit bumpy from what I can see, might be feasible to get rid of some of that with some tweaking...
https://youtu.be/GuMb-HgBbx0
Of course the massive detriment is that unlike some US events you don't get any weight increase so it's a bit more weight in a drive system for no real gain over a conventional wheeled setup (which is why overhaul swapped to wheels for the competition). That said, if the FRA were to honour the Robot Wars weight increases I can imagine it'd be a fair enough trade. I suppose in the wooden floor arenas you could also try small studs in the 'feet' to help increase traction?
Thanks for the video find Matt! That was really interesting to watch; given the high speed the system runs at, perhaps lowering the cam eccentricity and using thicker, softer grip material would reduce the bumpy drive and still move at a reasonable pace? Personally, I want to see a shuffler using the Straand Beast mechanism - totally impractical but it looks so cool :)