Building a Penny Pusher Arcade Game

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raynerd:
Hello chaps.... I think what you are failing to realise is that I haven't got a bloody clue when it comes to understanding electronics!!!! So David,

--- Quote ---
You seem to be looking for the most abstruse solution you can devise to a non-problem

AS Bill Todd, VTSteam et al have alluded ..

Get a 0-6 0-6 50-ish VA transformer, nail it to a 15A bridge rectifier, switch on, slide off for a pint while you leave it to ekkle.

--- End quote ---

So although I appreciate this was said in fun and honesty, without a clear guide as to exactly which transformer to purchase, which bridge rectifier and exactly how to glue it all together I'm useless and it is likely to go pop!!! :zap:

I suppose my suggestions have all been ideas based on purchasing a psu or converting an existing psu I.e the ATX supply!

I do appreciate all the info so please keep it coming!! I'm in a caravan now until Sunday so no more progress tomorrow. Time to think and decide on exactly how to power it.

I do also agree with awemawson - I'm not 100% sure what speed is best so using a Pwm does provide some flexibility but accept with the problems it is causing, it just adds another problem!!!

Hummm...tricky!

vtsteam:
I had a feeling Chris needed more than just generic advice.

Okay, Chris, I'm going to vote for the very first thing you asked about, not the PWM Controller you have now, but the one on Ebay, that you first mentioned and I also have, and that I have connected to an ATX PSU, which you also have and seem to be familiar with. And I have run it with a windscreen motor.

Now, since this outfit has already been tested with a windscreen motor, since it is cheap, and uses your available parts, and you only have to buy one thing, that controller, as opposed to a bunch of things -- transformers, rectifiers, capacitors, it's easier and doesn't require building something.

Also, since the pwm controller you have now isn't satisfactory, put it on the shelf for some other purpose, or return it for more than the Ebay one costs, and smile all the way to the bank!

Now if you do this, please make sure that your ATX power supply has at least 8 amps available on the +12 output, and you will need to do a couple thngs to it to make sure it comes on, and has a load on the 5 volt line, as someone else mentioned earlier. But that's not hard to do. And we can help with that.

raynerd:
:) have ordered the new pwm controller and will get onto sorting an Atx supply on Monday!! :-)

vtsteam:
Maybe you already know how to rig an ATX power supply -- I seem to remember that you did a motorized spindle once -- did that use an ATX?

Anyway, the two things you need to do are 1.) make a connection to the power supply's switch line to tell it to turn on. And 2.) put a load on the 5 volt side so the power supply has something to sense and regulate. Usually that is a power resistor.

However, I'm guessing that you are going to want lights in your arcade game, so why not use the 5 volt lines to power those?

Then you won't need a power resistor as a load on the 5 volt side -- the lights will be that load. Whether incandescent or LED just make sure they will be comfortable at 5 volts. Probably 6 volt automotive lamps (if you can still get them there -- we can here) will probably work well enough. Or hook up LEDs so they can handle 5 V. Some can, lesser ones can be hooked in series, or have a dropping resistor, etc.

If this sounds like a lot of jargon, just ask, and we can walk you through it. If not, you're on your way....

raynerd:
Hey Vsteam, thanks for the details. Yes, I've hooked up a good few different ATX supplies for various CNC machine axis and the spindle as you mentioned. Good point about running the LEDs and lighting off the 5v line.

Just some progress on the mechanism

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