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just a few photos of my build. specs are:
4x 12v drill motors
12v Nimh battery
4x rc marine ESCs
2.4ghz radio set
GWS mixer
robo challenge 100mm wheels
20mm HDPE chassis
Just gotta get my hands on 2 failsafes and some lids and it will be running. got a feeling its going to come up underweight so the lids and armour maybe made of some form of steel. weapons will probably be two big spikes. any other advice is welcome!
hey, looking like a good first robot, but im sure you wont want 4 speed controllers....... you'd be linking each sides 2 drive motors to one speedo meaning you'll be using 2 speed controllers. im not familar with those speed controllers, but did u consider getting the electronize 30A ones? as they'd probabily be better suited.
calum
somebody on the forums found them if i remember rightly. 50A forwards/ 20A reverse. was mainly down to cost (from ebay). my plan is to build something fairly cheap then improve it over time with better components. thats the reason for the empty-ish space inside i.e. for motorised weapons. the plan is to have the receiver then connect each side with servo y leads to the ESCs (with the mixer and failsafes in there).
Looking good. Get an active weapon on it!
I'm guessing that it weighs around the 8 or 9kg mark. Thats a good 4.6kg at least for a weapon. Linear actuator on a lifting arm and you have a bot with an active weapon.
I wouldn't bother putting steel on the top. There aren't many bots that will do much to a 5mm hdpe lid.
I've got the frame together now, next issue I've got is how to firmly attach the rc gear and speedos? Kinda worked out how to secure the battery. Any advice?
the double sided UPVC foam tape is very good for that
This is an area were most people rush and then have failures when the robot is in the arena.
If you can form a box that is part of the robot (say fit a thin plastic bulkhead parallel to a bulkhead you already have) and line it with foam so the electronics can be shock proofed (the Rx antenna won't get ripped off by the wheels!!) you will find the better these things are fitted the longer they will last.
robots stop working because wires get trapped or something gets loose or something preventable has happened,
think what if this happens and try to minimise risk
The Saint because of the way it thrashes around should be very unreliable, but isn't because of the thought that has gone into making the parts fit well.
So take your time and get this part right in the end it pays :D
wise words :)
cable ties. Big ones work well for me
chassis complete! electrics and lids to go