Team Gas Diary's

I also had a lot of trouble drilling it too, blunted a couple of drill bits in the process.

I found hardox ridiculous to drill when I used it once. Only managed to make 3 holes.

Been a rather productive night
I have mounted the motors, tapped a few dozen holes and popped everything in to see how its all looking.

Few pictures with most of the components in and the wheels placed to see how it looks.
Attachment 3793Attachment 3794Attachment 3795

Wotty is very tight and resting on the motors. I have created a new wanted thread to see if any one has a sidewinder lying around as thats the most suitable ESC for this. (or possible a victor)
Attachment 3796
If no one has a second hand one then I should use the wotty as I have no plans for it in anything else for bare minimum a year. I will only save about 500 grams going with a sidewinder. If I stick to the wotty then I will tweak the chassis a bit. Not a giant issue. Just move everything back 6mm and that will stop the watty resting on it.

Decided I am going to go with 3.5:1 reduction for now. As mentioned I have the options to change it but I could do with just seeing how it drives with the added voltage.

Also decided to just purchase some new lipos now. I was originally going to wait for the second version (with the weapon) But I might as well make the upgrade now and it will save about 1kg from the existing nicads. Plus a ton of space and higher discharge rates.
Not sure to go for 2, 4cell (29.6v) or 3, 3 cell (33.3volts)
Will do some calculations I have some time before I need to make a decision

Talking about batteries. I harvested an old laptop battery and made a pack out of it. Done a bit of homework and found these to be Li-ion batteries and have about half the current draw that a li-po has. Also these are rather old (8 year old laptop). But it could be used in a kilobot or something.

Attachment 3797

Main jobs now is the transmission. Have 1 wheel done. Need to make 3 more.

*EDIT*
I would also like to use this opportunity to thank everyone so far for making me feel really welcomed again. I didn't just stop building things when I took a break from this hobby. I built a few arcade systems and handheld game units and the forums and community felt very dry and unwelcoming. Getting any kind of feedback was like getting blood from stone. Keep being awesome and looking forward to my next event.

I would suggest you go 6S Li-Po and use those Turnigy TZ85 ESCs. That would be the smallest, lightest, cheapest and most robust option.
There are currently some issues with mixing though when using OrangeRxs which I believe are being resolved as we speak.

Not sure how happy the 85s would be right at both their voltage and amperage limit.

They'd run that no problem- looking great btw Godzilla, good to see you back :D

Good to hear from you Mouldy :) Knew it wouldn't be long to be called Godzilla :P

Yeah I picked up two 85as from Aussie land. Not sure when I will expect them but probably 2 weeks. If they work fine and with the lipo that means I have saved probably 2kg. Crazy. So I need to start thinking about the weapon.

This weekend has been spent most on the transmission. Its been really tricky at times, especially without a lathe. But I have had good success.
Important that the gears are aligned but the wheels have a bit of travel (MM or two).

I managed to mount the 16 tooth fine onto the motor. Quite surprised as this was my third attempt. Two years ago I seemed to have some trouble.
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Sadly have quite a big job ahead of me. I originally planned to mount roller bearings into the wheels but have instead decided to mount them into the chassis. So I need to take off all the snap on parts on the bulkheads and bore out the wheel shafts properly.

I also have to create a new motor mount. After the weight reduction its not solid enough. So I have some spare 14mm nylon and will make a new one.

Here is a video of testing the first stage of the drive.
Attachment 3807

https://www.youtube.com/watch?v=kdvY...gQ&index=1

How did you mount the gear on the Scooter motor shaft? Grubs screws and a flat on the shaft?

Already drilled a 4mm hole in the motor shaft a so I just drilled through the spur gear popped a bolt through with a m4 nylon nut.

How big is the shaft!?