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Rotwang ~ UltiBotís ~ Vic
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Rotwang
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Joined: 15 Jun 2004
Posts: 1578
Location: Vic


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Just re read those posts: about the glow plug idea for lighting the gas. I havenít tested it but I tend to doubt that the nichrome will ignite the gas. I was just going to use a small gear motor and a crank and conrod arrangement to fire a piezo spark to light things up

Post Mon Jul 31, 2006 7:16 pm 
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prong
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Joined: 19 Jun 2004
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Bort used a BBQ lighter pulled on with car door actuator. Worked very well, was super simple and made a nice pilot light you could turn on and off.

Post Mon Jul 31, 2006 7:25 pm 
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Rotwang
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Joined: 15 Jun 2004
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Location: Vic


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Yes I did notice that it worked well.
I guess I just wont a cleaner look and I am hoping I can get reliable ignition without a pilot light.
Grantville was extremely windy the day we were there, its right on the bay, I think a pilot light would blow out instantly, I think Neweyn was going to try a pilot light.
I can think of other ways to make sparks but as radio range is a high priority I didnít wont to get too carried away. Smile

As Pyrobot doesnít have a high KE weapon it is allowed to weigh up to 50kg so I donít have to be stingy with the weight points, plenty of steel and nice easy to charge SLAís

Post Mon Jul 31, 2006 7:46 pm 
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Knightrous
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Joined: 15 Jun 2004
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Location: NSW


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I reckon you could use a slightly modified driver circuit for those 250v Neon tube drivers. Just replace the neon tube with a pair of closely spaced electrodes and you have a spark ignitor that runs off 9v Cool

I had the diagrams for the circuits somewhere...
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Post Mon Jul 31, 2006 7:52 pm 
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Rotwang
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Joined: 15 Jun 2004
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Location: Vic


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Back in my day we would just rob the vibrator out of our valve car radio and hook it up to a car ignition coil. Very Happy

Post Mon Jul 31, 2006 7:59 pm 
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ffej
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Joined: 22 Jun 2004
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Location: Kurrajong, NSW


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Bah, not ghetto enough, grab a flyback from an old monitor / TV and drive it off the pulsed output of an XU1 drill trigger . . . that'll give you a purple arc that sings.


Disposable camera flashes work fairly well too if you just need a pulse and dont mind the recharge time. They also double as a portable (often unintentional, self inflicted) pain-inducing device lol
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Post Mon Jul 31, 2006 11:29 pm 
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Rotwang
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Joined: 15 Jun 2004
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Location: Vic


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Yes I am going to try that I remember you posting that in the other thread, I deliberately kept a couple of those from a couple of monitors I gutted for Overdrive one of the novelty bots that still not debuted.

Post Tue Aug 01, 2006 10:09 am 
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Totaly_Recycled
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the pizerro idea will probaly generate the les interferance of them generating high voltage arcs and the capacitor charge circutes all generate high leves of RF noie ...i have a home made electric fene unit here that uses a trembler coil a couple of caps and a car ignition coil conect it to 2klm of electric fencing and it blows out tv;s and radios for miles around with harsh static

Post Tue Aug 01, 2006 1:41 pm 
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dyrodium
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Twisted Evil That sounds so insanely cool!
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Post Tue Aug 01, 2006 1:46 pm 
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Knightrous
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Also kills a car battery in an hour Cool Oh, and leaves black bruises when you get zapped Laughing
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Post Tue Aug 01, 2006 2:20 pm 
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Rotwang
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Joined: 15 Jun 2004
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Location: Vic


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Got a lot done on Pyrobot on the weekend, Rob is going to put a few pictures up soon. Cool
Donít think he will cope very well with Hyzer but with no aggression points I can just run away and hope he runs out of battery first. Then again if I run away backwards I can flame him at the same time, that might slow him down. Smile

Post Tue Aug 08, 2006 10:01 am 
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Rob Team Rotwang



Joined: 19 Jun 2004
Posts: 292
Location: Victoria


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Uploaded some pictures of Pyrobot~ Smile

http://robowars.org/forum/album_pic.php?pic_id=1287
http://robowars.org/forum/album_pic.php?pic_id=1286
http://robowars.org/forum/album_pic.php?pic_id=1285
http://robowars.org/forum/album_pic.php?pic_id=1284

Post Tue Aug 08, 2006 4:41 pm 
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prong
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Exterminate! Very Happy

Post Tue Aug 08, 2006 5:06 pm 
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Knightrous
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Those drive motors look interesting Cool Similar in size and shape to the EV's, but with the off-centre output shaft, I think it would be safe to say they are also geared Razz
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Post Tue Aug 08, 2006 7:19 pm 
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Glen
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i love it! Very Happy wheres the laser
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Post Tue Aug 08, 2006 7:47 pm 
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