Search found 2548 matches

by TomKerekes
Wed May 01, 2024 12:21 am
Forum: Tuning Servos
Topic: spindle servo tuning for heavy chuck and overall mass
Replies: 8
Views: 54

Re: spindle servo tuning for heavy chuck and overall mass

If the DAC/Spindle responds correctly then the problem is likely with the configurations/tuning. I assume there is encoder Feedback? Please post your Config/Step Response/Filter screens and Spindle Programs. One thing that may be happening is the output is limited so it can't keep up with the comman...
by TomKerekes
Tue Apr 30, 2024 9:05 pm
Forum: Tuning Servos
Topic: spindle servo tuning for heavy chuck and overall mass
Replies: 8
Views: 54

Re: spindle servo tuning for heavy chuck and overall mass

edit. says file is too big to upload? how do i upload the step response data? Top To upload the raw data you might zip the file or change to a smaller time. anyways, it is a DC servo with a +/- 10V drive so torque right? Well no, the voltage could command a velocity. In this case the drive would ne...
by TomKerekes
Sat Apr 27, 2024 7:48 pm
Forum: C Programs
Topic: The program for probe and toolsetter
Replies: 1
Views: 14

Re: The program for probe and toolsetter

That depends on your job setup and use of offsets. The example ToolTableSet.c will set a tool table length such that the GCode DRO will read 0 with the tool tip touching the setter. Motion to probe the tool tip to the setter would need to be added for your tool setter. You might also read this Threa...
by TomKerekes
Sat Apr 27, 2024 7:35 pm
Forum: Tuning Servos
Topic: spindle servo tuning for heavy chuck and overall mass
Replies: 8
Views: 54

Re: spindle servo tuning for heavy chuck and overall mass

Tuning any servo is fundamentally the same, but with different response times and such. If the Spindle Drive has a excessive delay that can be problematic. Is the Drive input commanding torque or velocity? Please post Step Response Screen Plots with also your IIR Filter and Configuration settings an...
by TomKerekes
Thu Apr 25, 2024 1:05 am
Forum: User Machines
Topic: Fawne Fadal, Unchained. (4020 Fadal Retrofit)
Replies: 6
Views: 196

Re: Fawne Fadal, Unchained. (4020 Fadal Retrofit)

Hi Batty, Very good. But several things: #1 the Acceleration is set extremely high relative to that level of Jerk. Jerk is normally set around 10X the Acceleration value in order to to apply the full acceleration in around 0.1 seconds. With those levels of A and J it would take 200 seconds to apply ...
by TomKerekes
Mon Apr 22, 2024 6:19 pm
Forum: Configuration Issues
Topic: SETTING UP KFLOP, KANALOG FOR NEW CNC ROUTER RETROFIT
Replies: 266
Views: 16783

Re: SETTING UP KFLOP, KANALOG FOR NEW CNC ROUTER RETROFIT

Hi Noel,

I believe you only have Step/Direction signals connected to the Drives which is Position with no way to control velocity. So the Drives would need to be in Position mode.
by TomKerekes
Tue Apr 09, 2024 2:09 am
Forum: Noise, Grounding, Shielding Issues
Topic: Isolating SnapAmp from KFLOP to remove motor noise
Replies: 3
Views: 41

Re: Isolating SnapAmp from KFLOP to remove motor noise

Grounding is complex but one approach is to connect shields that are on noisy signals (Motor wiring, supply wiring, etc) with the purpose of collecting noise and preventing radiation of noise, to be connected to earth gnd away from KFLOP. If these shields are connected to the KFLOP/SnapAmp/KStep DC ...