Towards the middle even... compromise between frontal positioning and weight distribution at least.
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Towards the middle even... compromise between frontal positioning and weight distribution at least.
Not quite as good as the front as there claw isnt straight on the opponent when you turn. Thats why Razer had omnidrive wheels at the back so it turned about the front where the claw is.
(Message edited by geeza on May 06, 2007)
Hi Ed
Well I will be doing 2 protos out of wood first one like it is and I will do the other with the wheels to the front thanks for the advice. Dont think I will try the middle as I want to keep the T shape as I already have a T piece for the base.
Razer of course had the rear wheels so that power reached the ground at the back also while going in a straight line, hence good weight distribution. Compromises compromises :)
Lets agree to disagree :)
hey that kinda reminds me of something tony! :crazy:
http://img.photobucket.com/albums/v357/Cobrarobotics/Woodzilla/DSC03176.jpghttp://img.photobucket.com/albums/v3...a/DSC03176.jpg
It is worth mentioning that another reason for Razers wheel design was to get over ramps - The crusher would come down, pushing the lever for the 5th wheel to the floor. Leaving Razer with a high ground clearance and the rear wheels to power it forward.
(Message edited by Psychostorm on May 07, 2007)
Built a test bed for the claw to get all the measurments for the pivot points before I start to cut the Ali for the base. The base will have 2 groves cut the full length of the base the uprights will be bolted and then welded into the groves hopefully this will stop the base from bending. Pics and vid of test bed on http://www.teamdragon.org.ukwww.teamdragon.org.uk
Dragons claw page.
Looks like that thngs going to have some serious power! Whats the theoretcal power at the tip?
well it is rated at 1000kg :mrgreen:
Ummmm ...Tony ...Arent you supposed to push the load with the actuator .....not pull?
(Message edited by woody on May 13, 2007)
doesnt matter woody - same power in either direction !
Ed
http://www.teamstorm.comhttp://www.teamstorm.com
Yes you are right I had got the actuator in the wrong hole when I filmed it
Well in that case I will laeve it were it is it works better this way:)
I thought actuators were made with a compressive force in mind ....rather than tension.
The statement ....same power in either direction ! .....doesnt help much..... are you saying that this actuator is designed for both compressive and tensile forces?
If that is so ...then it doesnt matter:).
ACTUATOR
LA34
Features:
€ Max. thrust 10.000 N (in push only)
€ Max. thrust 6.000 N (in pull) with reinforced
actuator
Has to be with a steel piston rod eye and reinforced jaw otherwise max. pull is 4000 N
The reinforced jaw and safety nut in pull are included (does not apply to versions with the small motor).
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=200096671379http://cgi.ebay.co.uk/ws/eBayISAPI.d...m=200096671379
Ebay blurb...
343100+0X200240 which means. 12mm pitch, standard fixture, grey, no safety nut, 200mm pitch (just under 8), small motor, IP54 housing just in case anyone has any queries
LA34 - Small motor 12mm pitch 4.000N max push 4.000N max pull.
Checkout the pdf for more info.
(Message edited by woody on May 13, 2007)
Looking lethal Tony - seeing the CADs and the vid has re-ignited my urge to get building with my feather crusher. (prototype pic on profile) Wont quite be matching the power of yours, the actuators only rated at 4000N but hopefully itll be enough to cause some people problems. Came up with the concept design etc back in October 2005, but itll be spring 2008 before its completed - it better be worth the wait! :)
Looking forward to seeing Dragons Claw finished :)
New vid up with the action the other way round so it is pushing it when closing. http://www.teamdragon.org.ukwww.teamdragon.org.uk
Hi Jamie
got your emails did you get my replie
Yeah sorry, I got your reply but havent got round to getting a disc sent yet - has slipped my mind the past couple of days due to exam study but Ive got a break between my next exam (tomorrow) and my last one (24th) so Ill hopefully get it posted on Wednesday
whats it crushing through there tony??
Perhaps time a Raptor-weight section was added mr admin? :)
There already is, only theyre called hobbyweights on the forum. Raptors have a specific ruleset over hobbyweights.
Our new robot Shockwave is being built and should hopefully be ready for XFM this weekend.
current pics on profile
Drive- 2x 18v Drills running 75mm wheels
Batteries- Ni-Mh
Armour- 10mm polycarb and 4mm aluminium
weight- should be 12kg when finished.
Weapon- LP flipper
Tested Flipper today with very little Co2 in the bottle but it still had enough power to throw whirlpool and self right so it should be even better when its finished and working properly.
is that ali the arm?? you will need a brace on it has it will bend
Those photos were taken this morning, since then it has braces fitted made from 8mm ali and 10mm polycarb which have stood up quite well so far.
Not another flipper, I hate fighting flippers. Only joking, I hate spinners more. Looking very good Will.
Theres too many ram-bots and not enough flippers/spinners or axes at the moment!!!
how much has the whole pneumatic system cost you to build from switch all the way to the rams? i might be heading in this direction after i have tested it with my compressor system.
Looks great Will !
Ed
http://www.teamstorm.comhttp://www.teamstorm.com
Little Spinner is also ready, allthough maybe for this is should be called little pusher, should be interesting with its new front end :)
Does anyone have a postcode for the campsite?
(Message edited by big_nipper on May 29, 2007)
Just tested the flipper on shockwave.
Running on 70psi it threw a box 7ft high.
Should self right but ill have to wait until tomorrow when it hopefully wont be raining. I cant test it at 10bar though because the compressor wont go that high.
Ill try and get some videos online tomorrow.
Mark- postcode is IP10 0DE
Thanks
Updated pics of shockwave on my profile.
Almost finished, just got to connect up the pneumatics and fit the speed controllers.
Then we need to fit the bits to stop it resting on its side or back so I should have all of tomorrow to practice driving.
Looks neat - reminds me a bit of Ewe 2, nice one :)
Wow, Shockwave looks cool. :) Errr...how heavy was the box that went up 7ft?
Hannibalito 2 with its new armour.
http://www.computerclub.nl/uploads/Hannibalito2/H2V2_007.jpghttp://www.computerclub.nl/uploads/H...2/H2V2_007.jpg
http://www.computerclub.nl/uploads/Hannibalito2/H2V2_008.jpghttp://www.computerclub.nl/uploads/H...2/H2V2_008.jpg
http://www.computerclub.nl/uploads/Hannibalito2/H2V2_001.jpghttp://www.computerclub.nl/uploads/H...2/H2V2_001.jpg
http://www.computerclub.nl/uploads/Hannibalito2/H2V2_002.jpghttp://www.computerclub.nl/uploads/H...2/H2V2_002.jpg
http://www.computerclub.nl/uploads/Hannibalito2/H2V2_003.jpghttp://www.computerclub.nl/uploads/H...2/H2V2_003.jpg
Nice one Will. Good to see another Kent builder. Just up the road from me :)
Thanks for all the nice comments.
We have just bought a new high flow valve and testing it on 8 bar it seemed very effective.
Also the box that went 7ft high was only light, it was the only thing i could find to flip at the time.
Ill just finish connecting up the new valves and speed controllers and Ill test it and get the videos online.
That looks LETHAL. Leo, I think we will see some spinners flying sometime soon. :)