Wasnāt it Robert Burns?
āThe best laid plans of mice and men often go awry.ā
I am make a 10 tool retracting carousel and dust manifold so just be advised I am āmotivatedā to get everyone I can into an ATC system.
The system I use is based on the ISO30 tool holders. A decent ISO30 with acceptable runout is $150.00.
The carousel has 10 slots. If you just have 10 tools you have $1,500.00 in tool holders and you havenāt even spent a nickel on an end mill yet.
I bet you think you are just going to change the tools in those 10 holder, donāt you? Yeah, you will try it a few times until you learn you are spending more time keeping those tools calibrated than you would spend with that wrench on the non-ATC system.
Then there is the simple fact the tool holders only last so long. That taper will get marred and the pull studs will pop off and the tool will fall out at high RPM and skitter around you shop. Blah, blah, blah.
This one is my favorite, you will be cutting along and not notice you lost a few steps on your Z axis and when the tool change comes along and you will rip the tool holder clamps off the machine or worse. You will be lucky if that taper survives in that scenario too.
Anyways, you get the idea. Add on top of that the constant calibration and maintenance and you will have your hands full. The stock AvidCNC is a wonderfully simple machine. Not much to really go wrong on them. Not hard to maintenance either.
Do post the link to this retrofit you are thing about?
oh, lastly, āI prefer to use a portable air tank and not hook up to my compressor,ā
Yeah. Get a compressor. There is absolutely nothing fun about ripping the core of your spindle out because you ran out of air.