Dynomotion Forum

jeez so i was going to get back on this a bit i have another basic newer desktop i was going to run the lathe on to check for exact same behavior (science). while swapping it dawned on me that the trouble i think started right when i got the custom screen done. :? i think it was running great with t...

ok i did a move

i love stuff like the cube demo. i run a lot of things thru chatbot these days as it explains and shows me a lot! chatbot had a ton of math stuff but it did not copy/paste well.... The moment of inertia of the 2-inch cube is 32 times greater than that of the 1-inch cube, meaning it is 32 times harde...

ya i am a mess on this at one point i had it tuned to spin up and down on the RPM slider very aggressively, i mean respect! :shock: made some cuts and threaded some stuff no problem then the event where it all kind of went sideways on me working back up to useful performance since then.... i even po...

ok, i lowered the error to 150 and slowed the accel and jerk to ch2->Vel= 200000; // 1500rpm = 200000 counts per second ch2->Accel=50000; // 2 second to 1500 rpm = 100000 CPS ch2->Jerk= 100000; ch2->P=20; ch2->I=0; ch2->D=50; and runs stable but is kinda wimpy spindle performance the spindle will po...

boy it did have trouble just cutting air!
what to look at now?

i lowered the following error to 5000 and it ...
"Following Error Disabled Axis:2"

this is a brushed DC motor so its not slipping or phasing out right? like a brushless could?

is there any difference in the spindle performance between the G code program and just turning on the spindle by the CCW button? my spindle jog below #include "KMotionDef.h" #include "MySpindleDefs.h" int *css_mode = &persist.UserData[PC_COMM_CSS_MODE]; // Mode 1=Normal RPM mode. 2=CSS // desired sp...

1 should be torque drive i believe "Advance Motion Controls 30-125VAC Brush Type PWM Servo Amplifier 16A20ACT" 2 when i give it a lot of bolt ramming load it will DAC up to about 7 volt output 3 G18 G20 G80 G90 G95 S1000 M04 G04P1 G01 X3.0 Z0.5 F0.010 G00 X1.605 Z0.2 G01 X1.5851 Z0.2 X1.5851 Z-1.6 G...

i had the idea to run a load test on the spindle by ramming a large bolt head (in tailstock) into a large round bar in the spindle to see how it reacts the spindle ramped up the DAC and it responded pretty nice now i run a simple program with light cuts and the spindle will start running off and rea...

thanks for the info
ill study this for a couple days while i am camping this weekend
Monday i will try some stuff and get back to here