Team MedBots

**Max** · 4th April 2012, 19:39

Hi,
With the champs coming up I have started my last minute panic so instead of starting lots of threads I'll put my questions here and if your lucky you may even get to see pics or even a video of my bots once I'm back from holiday!
But first the questions;
1) what rate can I charge a 12v Nicd 2200mah or 2400mah battery?
2) can I charge 2 of said battery in parallel so I can change both batteries at once between fights?
3) if I've got a 11.4 4000mah 25c lipo battery don you think I should use a 100A fuse or a 80A fuse (I'm using 2 drill motors and speed 900 replica)
Thanks :P

**Max** · 5th April 2013, 10:55

Could I uses a pair of these 1kg welding co2 bottles instead of a 2kg fire extinguisher in a heavyweight?
http://www.toolsandpowertools.co.uk/...dioxide-1000g/
I would replace the valves with some hydraulic ball valves.

**maddox10** · 26th May 2013, 11:21

Originally Posted by Max

Could I uses a pair of these 1kg welding co2 bottles instead of a 2kg fire extinguisher in a heavyweight?
http://www.toolsandpowertools.co.uk/...dioxide-1000g/
I would replace the valves with some hydraulic ball valves.

No. 2 reasons.
Ball valves don't have burst disks.
Main bottles need to be commercialy available.

**Max** · 13th April 2013, 10:44

Would a pair of these:
http://www.technobotsonline.com/flan...ails-20mm.html
To connect the wheels of my heavyweight to the 20mm output shaft of the gearbox?
The wheels are 8" diameter.
Also still want to know about if I can use welding bottles instead of a fire extinguisher.

**Max** · 6th May 2013, 14:29

Good news, I finally got my fw flipper working! I had to connect it to a fire extinguisher as my co2 bottle is empty. It worked really well and chucked a brick pretty high even on only 5 bar. Also the hinge or the lid didn't bend this time!
Hopefully I will get it all fully sorted before Guildford as that is the weekend after my GCSEs

**Max** · 26th May 2013, 10:59

Hi,
Does anyone know the rough overall size and weight of the burkert 5404 valves?
Thanks,
Max

**maddox10** · 26th May 2013, 11:18

http://www.burkert.com/COM/search.ph...earchText=5404

**Max** · 26th May 2013, 14:53

Thanks Mario, I realised safety posting that the dimensions were probably on the data sheet! But I can't find the weight anywhere, does anyone have a rough idea (like more or less that 1/2 kg)?
Thanks