Hi Jestah,

Thanks.

I used a different circuit to that posted above but it is not dissimilar.
I think that learning to program these R.I.S.C. chips can be regarded as 'where there is a will...' certainly with the 12f683 there are only 35 instructions that can be used and it does not take too long to get familiar with their use - in some ways it is just a great adventure.

Yes, a programmer and associated drive software is necessary if you were planning on using the Microchip PIC devices but they are cheaply obtained on the bay (probably all made in China).

Tweakie.

Thanks Bit53b.

(I was fortunate enough to get all the associated Microchip software paid for, a few years back, when working on a ‘smart card’ access system so, for me at least, programming PIC chips is now relatively painless ).

Tweakie.

Sweet!

All that's left for the stinger is spindle control

For now I would like to make things work in the following manor, one of my relays will control power to the ESC "M8/M9" when enabled an attiny will pulse and bring the spindle to start state, beep beep beep
So if I can say have 3 buttons high,med,low that would work fine for me.
Once spindle is ready pick speed and attiny spits out the correct ms signal.
Now to get that all working is going to be the fun part
I never really adjusted the speed much when I used my RC spindle it was more of a turn the pot to pre marked spots deal.

Consistent set points instead of guessing and having to turn the dial,
With my last 555 timer you had to turn it slow till the three beep sounded then you could start the spindle.
This way I hope to set the power up ms to 1 and then have three increments up to 2ms.
simply to have it automated I guess as there is no rpm read out.
Also I have made a circuit that I hope wil be able to adapt to the Mach3 idea later down the road for my other mill

Skinning the cat a different way

Here is the prototype
Since the code I'm going to try and use is proven I went ahead and made it so if all works I don't need to build it again

It's 110mm by 50mm
Sorry for the delay I'm swamped

So this is what I have come up with so far.
I have made a circuit that when the spindle on signal from the arduino nano goes high, the attiny 85 is powered on.
I have flashed the tiny with a blink code for testing and when powered the code begins to run.
I kind of understand the 8bit libary but can't get the hex loaded onto the tiny.
From my understanding I have 2 pwm outputs and 3 anolog inputs I can play with.
I have pwm 1 in the circuit as the output and want to generate a pwm at startup with each anolog pin when brought high producing a ms pulse for low, high and default.

So to the point, can this be done using the 8bit hex or should I be looking at generating code to spit out the requested ms pulse at power up and logic highs?

Sorry still learnin the programing side of things here lol

Parts are in so I gotta get this done lol


Went with a different type of collet, ER11M instead of the reg ER11A
Now where's the coffee pot?

The diff is the way it locks and it's lighter.
It comes with a special locking wrench

And here it is

Picking up the m4 screws tomorrow and then it's testing time

It is 890kv as all my others, it's the sweet spot @12-14 vdc IMO
RPM max no load will be around 10,000.
This one is a little different as it's going on the Stinger PCB mill

I use 16 awg as your not going to pull more then 10 amps.
A 12 foot shielded power supply plug works well