www.robowars.org

RoboWars Australia Forum Index -> State Specific Information

Robowars Nationals TODO List
Goto page Previous  1, 2, 3  Next

Post new topic   Reply to topic
  Author    Thread
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

I had an idea too with levering door closed.

Steve
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Sun Sep 27, 2015 10:44 pm 
 View user's profile Send private message Send e-mail MSN Messenger
Nick
Experienced Roboteer


Joined: 16 Jun 2004
Posts: 11799
Location: Sydney, NSW


 Reply with quote  

You're going to use a MUCH larger hammer? Laughing

My lock idea has two versions, the better one needs a small amount of welding. its on the frame, not near any plastic so it should still be fairly easy. The non-welding version just needs a couple of holes and bolts.
_________________
Australian 2015 Featherweight champion
UK 2016 Gladiator champion

Post Sun Sep 27, 2015 11:34 pm 
 View user's profile Send private message
Nick
Experienced Roboteer


Joined: 16 Jun 2004
Posts: 11799
Location: Sydney, NSW


 Reply with quote  

OK, here is my idea for a strong, simple and easy to make arena lock. I knocked the demo up from wood off the scrap bin; the steel parts can be sized to what people think is strong enough:



In the closed and locked position. The locking bar pivots around the top screw and is secured with a pin. I have four of the pins spare from another project; I can post them up or bring them with me.



From the door frame side. You can see how the latch is angled so the locking bar draws the door closed on the inclined plane.




In the open position. The locking bar is not stable like this and wants to rotate down to keep the door closed, so its inherently safe even without the locking pin. The block above the latch plate is to stop the locking bar rotating too far.




The locking pin. It fits up to a 38mm thickness and needs an 8mm hole.

The latch plate could be welded or screwed to the door frame and the locking bar can be made from whatever flat bar is on hand. In the demo, the bar is 75 x 130mm.
_________________
Australian 2015 Featherweight champion
UK 2016 Gladiator champion

Post Mon Sep 28, 2015 2:29 pm 
 View user's profile Send private message
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

Cool I knocked a few test steel bits today think it will work. Will also leave the old ones there and just put it above/below them so that we can still use them. Think hardest part will be making the steel latch part thick enough so it doesn't bow out when door gets hit.

Also shirts are ordered.

One more thing to cross off the list.
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Mon Sep 28, 2015 10:15 pm 
 View user's profile Send private message Send e-mail MSN Messenger
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

So I added a similar latch to the door. Seems to work ok but door frame is so flexible it can move like 10mm and if that happens it seems to jam due to the way I built it. Few more mods tomorrow then I am going to call it done F@#$##IN%$C@#N^%^$T@MOTH!#@DASG@#$!@E@!!!!!

I also modded the other two latches so the pin can be used to lever door closed and then placed in a slot to lock. So between those two mods it should be somewhat better.

The real issue is the door basically floats in the frame so its not that hinges sag or the latches bend is that the whole frame twists. Really needs some braces on it to stiffen it but even then probably won't help once we get to bolting the whole thing together.
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Tue Sep 29, 2015 6:40 pm 
 View user's profile Send private message Send e-mail MSN Messenger
Nick
Experienced Roboteer


Joined: 16 Jun 2004
Posts: 11799
Location: Sydney, NSW


 Reply with quote  

The new arena lights are almost finished; two are complete and the other two are cut & drilled, just waiting for the extra heatsink fins to arrive - 3 or 4 more hours work should finish everything. The DMX controller has arrived and looks easy to get going to control the lights:



The board is tiny, as are the relays, so I am not convinced they will switch the advertised 10 amps. Luckily, each light draws less that 0.4A at 240V, so we don't need to worry. It will be easy to build this into a power distribution box so each LED strip light can be controlled.

The bad news is that the arena timer isn't going to be finished in time; the wiring & construction is much more time consuming than I thought so this will have to be an upgrade for the following event Sad.
_________________
Australian 2015 Featherweight champion
UK 2016 Gladiator champion

Post Tue Sep 29, 2015 9:11 pm 
 View user's profile Send private message
Valen
Experienced Roboteer


Joined: 07 Jul 2004
Posts: 4433
Location: Sydney


 Reply with quote  

The NSW arena timer is still good to go, wouldn't be insane to add some "repeater" displays for the combatants, as a stop gap.

It's not little though, getting it to QLD could be interesting?
_________________
Mechanical engineers build weapons, civil engineers build targets

Post Tue Sep 29, 2015 11:14 pm 
 View user's profile Send private message Visit poster's website AIM Address Yahoo Messenger MSN Messenger ICQ Number
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

TODO
- Test Arena Door - Done
- Robot Trading Cards - Revision 1 done, revision 2 to come this weekend

- Run sheet finalised - TODO

- Green Ant Repairs - Done
- Arena Lighting - Almost Done

- TV Video Streaming Test - Maybe
- Shirts - Done

Plan for next few days:

- Do as many cards as possible from Builders DB so far nobody has assisted with supplying details. - TODO
- Reload trailer with arena.- Done
- Ditch old top layer floor. - DOne
- Re Paint bottom outside layer of floor.-Not doing
- Drill the steel bottom barriers. - TODO
- Sort the Arena Bolts - TODO
- Finalise Shirt order - Done
- Replace all the green ants batteries and pack. - Done



So where am I at TODO:
- Do as many cards as possible from Builders DB so far nobody has assisted with supplying details. - TODO
- Run sheet finalised - TODO
- Drill the steel bottom barriers. - TODO
- Sort the Arena Bolts - TODO

Well getting there.
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Tue Sep 29, 2015 11:41 pm 
 View user's profile Send private message Send e-mail MSN Messenger
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

Arena is all packed and ready to be delivered Friday.

Cards and Time schedule are happening slowly but its not really my highest priority.
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Wed Oct 07, 2015 10:54 am 
 View user's profile Send private message Send e-mail MSN Messenger
Nick
Experienced Roboteer


Joined: 16 Jun 2004
Posts: 11799
Location: Sydney, NSW


 Reply with quote  

I had a bit of a setback with the lighting - it seems that Locktite destroys some plastics and the mounts for the power supplies now look like crumbly cheese. I fixed it up with massive amounts of epoxy and once that sets, the last two lights can be wired up and packed.
_________________
Australian 2015 Featherweight champion
UK 2016 Gladiator champion

Post Wed Oct 07, 2015 11:54 am 
 View user's profile Send private message
Valen
Experienced Roboteer


Joined: 07 Jul 2004
Posts: 4433
Location: Sydney


 Reply with quote  

ouch, that is not how you want to find that out.
_________________
Mechanical engineers build weapons, civil engineers build targets

Post Wed Oct 07, 2015 12:35 pm 
 View user's profile Send private message Visit poster's website AIM Address Yahoo Messenger MSN Messenger ICQ Number
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

Duct Tape.
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Wed Oct 07, 2015 12:43 pm 
 View user's profile Send private message Send e-mail MSN Messenger
Spockie-Tech
Site Admin


Joined: 31 May 2004
Posts: 3160
Location: Melbourne, Australia


 Reply with quote  

I prefer Gaffer tape, it sticks better and is black.

I suppose Duct tape is a bit cheaper than the good (Nashua) gaffer tape..
_________________
Great minds discuss ideas. Average minds discuss events. Small minds discuss people

Post Wed Oct 07, 2015 1:54 pm 
 View user's profile Send private message Send e-mail Visit poster's website MSN Messenger
Nick
Experienced Roboteer


Joined: 16 Jun 2004
Posts: 11799
Location: Sydney, NSW


 Reply with quote  

In the US its the same thing. You should try a roll of Gorilla tape, its pricey but even better than the Nashua stuff.
_________________
Australian 2015 Featherweight champion
UK 2016 Gladiator champion

Post Wed Oct 07, 2015 2:22 pm 
 View user's profile Send private message
Spockie-Tech
Site Admin


Joined: 31 May 2004
Posts: 3160
Location: Melbourne, Australia


 Reply with quote  

Really ? Duct Tape has always been silver and plastic/stretchy when Ive seen it.. This stuff



(some make wallets out of it)


Gaffer Tape is usually cloth backed (non stretch) and black


Although i did see some silver cloth backed "duct tape", as well as the usual "Duck tape" misnaming and so on, but Ill stick with what Nashua calls it..

Gorilla Tape is new to me. Smile
_________________
Great minds discuss ideas. Average minds discuss events. Small minds discuss people

Post Wed Oct 07, 2015 5:45 pm 
 View user's profile Send private message Send e-mail Visit poster's website MSN Messenger
  Display posts from previous:      

Forum Jump:
Jump to:  

Post new topic   Reply to topic
Page 2 of 3

Goto page Previous  1, 2, 3  Next

Forum Rules:
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

 

Last Thread | Next Thread  >
Powered by phpBB: © 2001 phpBB Group
millenniumFalcon Template By Vereor.