800w spindle - noise & controlling remotely

[Boyan Silyavski]

I have 800w watercolled spindle and honestly its the quitest thing in my garage. The router bit itself makes 50x noise when routing. if your breakout board do not suppost output of 0-10v the next best thing to do is attach to an available output this board c41

Dont be put off the spindle, you want be disappointed. They sound like jets, due to the microphone autolevels of the cameras or phones with cameras used making the videos. In reality, you can not hear it next room.

Instead of spending money on radiators, you can follow my advice on the other thread you started and use the money for the C41 PWM control. Once you set up the frequencies you forget about this. Look at the picture of my setup on the other thread you started http://www.mycncuk.com/forums/router...s-buckets.html . See that paper just above the computer, ticked to the wall? That was from the time i was not controlling it via the C41. Every time i had to set up the frequency responding to measured RPM. Its a table of frequencies and responding RPM.
Now i have my tool database in Aspire programmed, so the CAM exports the G code and mach3 picks up the RPM from the G code and commands it directly. One less thing to worry.

Even if Dean /Jazzcnc/ pointed at one other thread that the chinese VFDs are getting better every day, if i were you i would buy this one INVERTER VETTORIALE TOSHIBA 0,75 kW 230 Volt MONOFASE USCITA MOTORE TRIFASE 1 HP | eBay

Another benefit versus 300w one is that if your machine is rigid enough or not , with very light passes you can do aluminum. At this point you will run it at 3000RPM so 800w spindle is quite more stronger than 300w at low RPM. And as they pointed to you, the run out is very small. I doubt that the 300w one comes with four bearings like the 800w.