Sunday, April 16

TWO HEADS BETTER THEN ONE


sprocket2cog
Well the Trike has been upgraded so I thought an update to keep you thinking what im going to do next was in order. Ive added a new upper deck and placed a hacked mother board from the lego rcx brick into it . The user buttons have been hacked into with real buttons mounted in the board to turn on the rcx and increment the program slot. The run button and view buttons will be jacked into the viper to allow control of the lcd screen and program runtime to save power. The RCX will also talk to the viper to allow analouge to digital conversion and multiplexing digital to analouge switches etc to allow a single wire control from the rcx with up to 16 buttons attached. The bulldog trike has a comman earth and this will allow easier use of sensors etc by limiting wiring later on. A new double wheel went on the back to help keep it stable and theres still heaps of wiring to go yet.... More in a few days..

Thursday, April 13

VIPER TRIKE


sprocket2cog
Ive been working on a new test platform for a small robot that uses minimal parts instead of a com[plex chassis to speed assembly and repair or replacement of damageed componets.
The resault for the first prototype is a trike design with a single servo driving the back wheel and the motors that came with the viper kit from microbric driving the robot.
Power is from a seven cell NiMH pack running a rectifier diode as protection against reverse power hook up.
The sensor pack is just some leds, a piezo speaker and a bump sensor at the moment but plans to add wall sensing via infrared or ultrasonics are afoot.
The viper bolts to the plexiglass via two brass risers and the servo screws to the plexiglass, all the parts are part of a stressed chassis and the viper makes up the lower beck and the top deck curenttly holds the battery and servo.

Monday, April 10

SITE UPDATES


sprocket2cog
OK heres some links and news from around thw web about the sites and features we have spread out everywhere. MICROBRIC fans head over to the latest facts and tips at the viper site, now has a new faq on issuse with the viper as we find them, goto HERE Lego is very quiet at the moment with the testers testing away, pity they didnt have the foresight to let out more info now the testinf has started, we want to know more !!!! The raptor is on hold as a project, im going to use the brain later and the parts are bieng used in new projects. The v2 is sitting resting while i hack and prod the viper. But for all you fans heap over to www.hackraptor.twistedsouls.com All right, now for the media philes. video robot group HERE and photos HERE and the frap robot battle robot map named the worldwide battle raptors, is located HERE
wallpaper image for your download....

Thursday, April 6

GET A VIPER PACK IN STORE NOW


note* the image is a older prototype used during the design and promotion of the original idea,
it shows an early sumo robot that is reflected in the new kit on sale.

some archive material to enjoy

sprocket2cog
Ok normally I like to go on about things a bit but I dont like to write about the same thing in two posts like this but if your in oz and can get to a store or want to order from dse.com.au online then nows a good time.
viper kits are going on limited price drops with the main kit selling for about $150 and the sumo and wheel pack selling for $52.49 & $59.99 each. so get them while its good picking.
I have got a sumo pack away for me to pick up soon, so ill have the sumo parts to do for the povray files .
thats the next big thing to do.
go here for the online details of the specials at dse..

VIPER SNAKES FORWARD


sprocket2cog
Well The MICROBRIC company is taking leaps and bounds with its range of robot experimentaion products and the latest news is going to really bring a smile to our faces. The wise men (and women ?) at the South Australian based company have opened up their online shop with a whole new range of repackaged products aimed squarely at overseas buyers. The box sets contain the same parts as the shelf release items but the box is half size to reduce postage and handling and combined post on several add packs purchased at the same time keeps the price down. Check it out if your not near a dick smith store and you end up only spending about the same amount as in store due to cheaper costs on the stuff itself, all good from where im sitting :)
On another note, a while ago i sent an idea for a 90 degree adaptor to Josh at microbrics support center after some talk in email and the forums. Well after some feedback heres where they are up to at the moment with it.
Cool, this little mod will allow vertical motor placement, repostioning of line trackers to work as obstical advoidance sensors and even three dimensional models for more advanced constructions. only time will tell how these little gems will surface, in packs or kits or as part of a promotion ? What else does the fledgeling company have hiding ? the skorpion next, or a new sensor pack, maybe even an led screen...the possiablites are endless, and they want to know about it too, so give them a vist and fill in the form on the main page to let them know what you all want. quick call for the robot medics the venom is spreading and its not all bad :)

Wednesday, April 5

VIDEO ROBOT GROUP

sprocket2cog

A while ago Lem From robots dreams put me on to youtube for video hosting online, the site is first rate and allows videos to be added to your websites as a flash interface. nice :)
Well when i did a search for a group involving robots there wasnt one so i started one up.
www.youtube.com/group/ROBOT
So if you have a video about robots then get it in the group to increase your views.
heres one of our members exclusive look into the guts of the scooba.




Theirs heaps more footage, with packbots and disney robots as well as pranks and bipeds...check them out today....

Tuesday, April 4

LOCAL TIME IS HALF PAST A FRECKLE

sprocket2cog

well just an update on whats going on The latest from the labs and news from the backrooms where robots cry for help...
Well ive upgraded images for the micro brick site with povray images i created for the intent of building plans like the manual for the viper to keep the look uniform. ill clean up the code for the pov file soon and release it for others to use, but for now its best to load one of my wallpapers from the site to your pc to drool over the models you can make in VR ( virtual realty for those too new to remember) with parts you dont own...i need to get the extra servo pack to build that so its on the list as well.
I have some more micro bric stuff soon including programs and the next project is going to be power supplies, i need a longer run for testing...
Im rebuilding the main s2c site as a portal as well to locate and navigate my content better as well, its a bit spread out on the net but you go where the people are....
the trike project was started and a review of what that intails is coming to s2c soon as well.
More soon
http://www.upnaway.com/~terraform/microbric/

HOW TO WRECK A ROBOT


sprocket2cog
Well I know i want to get in to robot wrecking but i really didnt mean for it to be like this ....
Well the story so far down in the lab carpark is thus.
Take one beat up mobility scooter, one pile of aluminium and some 24 volt motors and build a outdoor robot with a bit of real world grunt...soultion ? robo trike.
After replacing the whole backend with a lighter alloy section and using a 10amp 24 volt worm drive motor instead of the bulky 24 v 15 amp with added electromechanical brake motor that came with it the length was shortened as well and all the extra handle bars etc removed as well as the seat.
a New 12 volt motor for sterring control from a car wiper assembly was fitted and after finally getting the angles for the sterring linkages sorted I decided to give it a little chassis test by giving the motors a quick boot to see if the thing would be too fast or slow and its easier to redo the ratios now with out the shell on.
Any way, next step went all wrong.
first i touched
the terminals to the batteries to start the motor only meaning to give it a little tickle with the volts, but the terminal soldered itself to the battery post due to the high start up current draw , i couldnt get the terminal off quickly and the motor was too strong for the mounting plate and bent it about 20 degress or so down from the torque as the robot went to go. it must weigh around 35-45 kilograms now with out the batteries on board...nice robot..
REAL ROBOTS EAT MEAT ! projects this big can take off fingers or worse, take care, more then i did....hey myth busters stye alright...!
so dont start your robot with out a decent control system and pulsed power, or a lower voltage etc to try it, an d make sure the motor mount is at least three times stronger then you think you need... happy hacking.