Search found 29 matches

by gnrules
Sun May 10, 2026 9:49 am
Forum: KMotionCNC, G Code Files, Offsets, Post Process
Topic: G2/G3 resolution
Replies: 6
Views: 993

Re: G2/G3 resolution

Hi Tom, I performed a lot of test and a strange behaviour is on. I tried moving a lot my loop parameters putting filters on and off and lowering gains to minimum, but the oscillation (about 20Hz) is always there. Obviously following error changes during those test, but the fundamental behaviour and ...
by gnrules
Thu May 07, 2026 5:23 am
Forum: KMotionCNC, G Code Files, Offsets, Post Process
Topic: G2/G3 resolution
Replies: 6
Views: 993

Re: G2/G3 resolution

Hi Tom, sorry for the late reply but here in Italy there was a long bank holiday and I was on a trip. the machine has servos, glass scales 0.5um resolution and we are using last version (5.4.1 maybe). we performed some investigation acquiring data both during cut and with dry runs and my suspect is ...
by gnrules
Wed Apr 29, 2026 12:37 pm
Forum: KMotionCNC, G Code Files, Offsets, Post Process
Topic: G2/G3 resolution
Replies: 6
Views: 993

Re: G2/G3 resolution

Forgot to mention we use KLP=0.002 filter and the sound of the mill is quiet and smooth, so no vibrations are in place (also changing tool loads with no effects is a proof).
by gnrules
Wed Apr 29, 2026 12:35 pm
Forum: KMotionCNC, G Code Files, Offsets, Post Process
Topic: G2/G3 resolution
Replies: 6
Views: 993

G2/G3 resolution

Hi Tom, i'm trying to smooth as possible a round path of 300mm diameter. we tried different approaches using: -corner tolerance 0.01mm -Beak angle: 20 deg - facet angle:0.1 deg -collinear tolerance: 0 both with G2/G3 and tessellated path (chordal deviation 0.0005mm) we notice some sort o facets on t...
by gnrules
Tue Apr 21, 2026 6:10 pm
Forum: Hardware Interface Issues
Topic: Konnect randomly disconnects
Replies: 9
Views: 24989

Re: Konnect randomly disconnects

I think the 24V wiring should be isolated from KFLOP's GND even if it requires an additional separate 24V supply for your amplifiers. Sorry Tom, not sure to understand: our servo amplifiers tie all the GND signals togheter. Kflop + Kanalog share the same GND for both I/O and Analog outputs. Even If...
by gnrules
Tue Apr 21, 2026 10:49 am
Forum: Hardware Interface Issues
Topic: Konnect randomly disconnects
Replies: 9
Views: 24989

Re: Konnect randomly disconnects

well, as expected it works. the board reconnects, but the current status of the bits is wiped out during reconnects. So the machine triggers a n error. At least it is not blocked in a floating state. We definitely have to solve this disconnection problem. during the last errros the value of the sign...
by gnrules
Mon Apr 20, 2026 2:20 pm
Forum: Hardware Interface Issues
Topic: Konnect randomly disconnects
Replies: 9
Views: 24989

Re: Konnect randomly disconnects

Hi Tom, yes, probably my explanation was not very clear. In principle we try to separate 24V gnd from Kflop GND and keep any I/O optoisolated. The actual problem is that our servo-drives connect the analog ground to their 24V gnd. Thus meaning that kflop gnd (in common with analog output gnd) is con...
by gnrules
Fri Apr 17, 2026 8:00 am
Forum: Hardware Interface Issues
Topic: Konnect randomly disconnects
Replies: 9
Views: 24989

Re: Konnect randomly disconnects

Hi Tom, thank you for the quick response. the ac tual length is a bit less something like 65 cm... it is required by the routing. we could shorten it but not too much. I think we can go down to about 50cm but not less. the cable shield is connected to a chassis where kflop and kanalog are contained,...
by gnrules
Thu Apr 16, 2026 9:26 am
Forum: Hardware Interface Issues
Topic: Konnect randomly disconnects
Replies: 9
Views: 24989

Re: Konnect randomly disconnects

Sorry i forgot to mention the exact error is:
"COMM ERROR Aux1 B7 (signature not A5)"

while konnect is initiaized with:

Code: Select all

InitAux();
AddKonnect(0,&VirtualBits,VirtualBitsEx);
by gnrules
Thu Apr 16, 2026 9:21 am
Forum: Hardware Interface Issues
Topic: Konnect randomly disconnects
Replies: 9
Views: 24989

Konnect randomly disconnects

Hi everyone, in a machine that we recently installed, we added a Konnect board to handle a set of additional I/O. It is connected to Klfop+Kanalog set with a shielded cable (0.8m long). the last part of cable is separated and connected to IDC for abnout 30mm and then to Konnect connector. It happens...