Hello, I recently received my X3 a few weeks ago and I have been experiencing spindle speed issues when controlling the machine from Mach 3.

It appears others have this same problem. I am hoping someone has resolved this issue or has some additional insight.

I have tried contacting Syil, but they fail to return my calls or emails. When I do get Richard or Rod on the phone, they act like I am the first person with this problem. They seem to be ignoring or avoiding this issue.

Maybe they don't read the posts on their own forum?
http://www.syil.com/community/showthread.php?t=37

I have posted 4 videos on YouTube to show the behavior of the X3 spindle with Mach.

http://www.youtube.com/customluthier

Video 1: Syil X3 Mach settings
Shows pulley configurations
Pulley #1 80-1750 ratio 1
Pulley #2 200-3500 ratio 2
PWM Base Freq set to 500-650
PWM Min % set to 5-6

Video 2: Syil X3 CNC Erratic Behavior
Shows startup erratic behavior of spindle
going from forward to reverse, start to stop

Video 3: Syil X3 Pulley 2X
Shows spindle response from Mach MDI gcode inputs
S500,M3,M5
S400,M3,M5
S2000,M3,M5
S3000,M3,M5

Video 4: Syil X3 Pulley 1X
Shows spindle response from Mach MDI gcode inputs
S200,M3,M5
S400,M3,M5
S1000,M3
S1500,M5