I am New to DIY sim building. Anyone chiming in with help is great.

and for the bonus question
what are people opinion on this for a power supply
https://www.hobbyking.com/hobbyking..._switching_DC_Power_Supply_for_Chargers_.html

its for charging, probably no good
you need to look at a proper power supply like a converted server PSU, proper PSU and or a car battery in parallel with a PSU.
20 amps is not really enough, look at 40 amps at least for extra power if you ever need it.

well i grab a few old psu from some old laptops i had. they were a 19v 3.7a and a 12v 3.7a. I hooked them both up and the 19v really makes those little motors fly. i don't know about stall force though. (how stronge they are)

easy way to find out @james wheeler , thrash the motors till they break.
As for the power supplies, dunno, try them out.

lol yes that will most likely happen bit they were ten bucks a piece so lets blow them up. since its more like a prototype build I won't be to upset.

I bought 2 HP sever power supplies from ebay last week. They cost me £27 GBP for 2 of them delivered.

47A each so they're perfect for the job. Really easy to find as well.

can you put up a link to where you got them from

Not sure if these are the same ones that Barry is using but they are the ones that I use:

http://www.ebay.com/itm/HP-DL360-G5...-/321323351835?pt=PCA_UPS&hash=item4ad05d3f1b

Although these are of a lower amperage I think they are better as they have their own internal cooling fan. I had to add fans to mine which increased the labor and cost.

http://www.ebay.com/itm/LOT-2-HP-DP...=US_Server_Power_Supplies&hash=item56637b5e6f


Also, James you had asked about a map feature so you could find help locally but you never added yourself to the map. You should do this in case future members also want to find local people in your area to get help from.

Here they are: http://www.ebay.co.uk/itm/261370731268?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

thanks for the links.
now for pots. how do i chose the right one?
here is a link to a electric hardware store close to where iam building the seat

http://www.a1parts.com/pots/index.htm
there are so many i am alittle lost

5 or 10k ohm linear, single turn will start you as they are cheap. Then later I suggest hall effect pots http://au.element14.com/bi-technolo...ll-0-2v-20v-to-10v-pin/dp/2319662?Ntt=2319662 as they are less prone to breaking like cheap pots.

How hard are the hall effect pots to set up?

piece of cake, they wire up the same as a normal pot and you find the centre position on the pot , set feedback in the appropriate controller and off you go.

I took some pictures of the seats hardware after I slaped it together, and yes that is a old patio umbrella shaft sticking out the front. lol I found everything so far for free. I did "f" up on the placement of my ball joints but I will fix it. Just got ahead of myself

ok so i will get a few 17mm 10k pots. Next though can anyone tell me if 2 of these (
Pololu 12A, 5.5 - 24V Single Motor Controller)
http://www.robotshop.com/ca/en/pololu-12a-single-motor-controller.html
will be able to work with one arduino uno board.

looks good on the frame, love a good "slap" together build. Most of mine are like that.

where can i find post on arduino related question?

Yes. Two of these motor controllers should work with any micro-controller where you have 4 available logic level output pins, two pwm pins to output a duty cycle, and of course, the proper coding to operate them.

These can be wired in like a std H bridge using a PWM and 2 dir pins.

Beware they are a bugger to run at 24v, better used at 12-16v. Warning contained on pololu site.

" While the overvoltage protection typically kicks in at 27 V, it can trigger at voltages as low as 24 V, so we do not recommend using this motor driver with 24 V batteries, which significantly exceed 24 V when fully charged."

Lots of info here, http://www.pololu.com/product/1451

Hook up would be like this and doubled for two units but one micro controller.



**Picture came from - http://www.pololu.com/picture/view/0J3706

I'm curious what part of my analysis you disagreed with @eaorobbie ? I think we said the exact same thing! You said hook up like a standard 2 pin direction controlled h-bridge with a PWM pin. He wants to hook up two of them. Would this not equal 4 direction pins and 2 PWM pins if it is done on one micro controller?