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Ok. Thanks! I'm not looking to do heavy duty milling: just light cuts. Do you think the Huanyang GT series drives, which do have vector control, will allow for lower rpm usage in these high speed...

Ok. I think I found a spindle that will meet metal cutting and low rpms. Do you think this spindle will work?:...

Ok. I found an different spindle rated down to 10rpm (https://www.amazon.com/dp/B071HYXK9X/ref=psdc_13400331_rv_t1_B077BTW4NQ). Could you say whether the this spindle is compatible with the drive...

Can the Huanyang GT series drives be used with a chinese high speed spindle...

An update! I decided to drop the dual loop for higher accuracy and use a single loop with motor encoder (or resolver) feedback. I had the raspberry pi working pretty good in a psudo-PID control as an...

Two other options that you may want to look into are the kflop (Dynomotion Motion Control Boards for CNC Manufacturing and Robotics Applications) and the Galil (Galil Motion Control).

It looks like the CSMIO/IP-S does not accept any sort of feedback (just the CSMIO/IP-A does...and that will only work for you if your servo drives accept analog input). Your other option is...

I'll let you know what I get on the secondary feedback on my drive (CD servostar 250). So far my best solution was a Pacific Scientific SC905 drive with the positioning card. Although the Raspberry...

I worked night and day on this and finally finished a control system using the Raspberry Pi3 computer. It detects Mach3 step/dir control signals and encoder scale feedback signals using wiringPi...

The next step is to attempt to add an external position loop using raspberry pi 2/3 computer/board. I'm waiting for some decoder chips still for the glass-encoder-scale output signals (this is the...

I did the z-axis. The power cable (from drive to motor) was too short, so I lengthened it. Now machine is fully functional with 3 servo motors.

Yes. TTL logic

I need to convert a 2 channel (A and B phase) quadrature signal to single channel. The single channel should have double the frequency of the dual channel signals. Can anyone provide me with a...

I installed the y-axis motor and it is working well with single loop resolver feedback. One motor to go.

I wasn't able to get the dual loop position feedback working on the SC954 so I bought two Servostar CD 2 series drives to try. Those drives turned out to be not usable for such input positioning...

After a spending my time on other projects, I am working on finishing the conversion. I finished the x-axis conversion listed above. I tuned the motor and it responded pretty much on the mark...

ok, darn. Thanks for letting me know. Cool you can add a motor and caps like that; i might look into that.

I received the manual. See attached.

This one is pretty good. It's made for cnc so the output can be closer to the idler. The panel says max. of 3-phase 42 amps. out and when converted to hp at 230V that is a 15hp motor.

I think. Let me check the back of the front panel.

I'm not sure but it's rated at 15HP so I assume close to 15HP.

It can be shipped there for about $100.

Warren, OH

Hi! I am looking to sell my Rotary Phase Converter. It is in like-new condition; only ran it a few times. See attached pics. I was looking for $500-1000 price range. This is an awesome find for...

Hi! I am looking to sell my Rotary Phase Converter. It is in like-new condition; only ran a few times. See attached pics. I was looking for $500-1000 price range. This is an awesome find for...

The manual is available on Kollmorgen's website (http://www.kollmorgen.com/uploadedFiles/Products/Drives/Discontinued_Drives/Discontinued_Drives/SC900-SCE900/200603221604560.SC900_Manual.pdf).

I tried the absolute positioning scheme of the drive (SC954 Pacific Scientific) and the same errors accumulated under certain pulsing conditions.

Wow, sounds great!

I got the arduino board for ~$20 (Duemilanove 2009 AVR ATmega328 p-20PU USB version) a couple days ago. It works to take the mach3 pulses and extend the width from 15us to 1500-2000us. When using...

I added relays for disabling the drives when the emergency stop button is pressed. I also added a switch so I can easily disable the drives when needed. Still waiting on the arduino board.