[electric2u]

After I set up my motor, then I go to launch the program it shows the logo and the emc screen then freezes up (the mouse turn black if that helps) I installed it two time now. If you can help me thank you

[vlmarshall]

Latency settings wrong? Does EMC work with one of the Sim configurations?

[slavkok]

did you run latency test and what the result is?

[electric2u]

i'm new what is a latency test? how do i do it?

[vlmarshall]

http://linuxcnc.org/docs/2.4/html/co...b:Latency-Test

[electric2u]

OK i got it the Max jitter is servo thread 12428 the base thread is 16620

[slavkok]

Try to set BASE_PERIOD to at least 50000
for more information just look at
http://www.linuxcnc.org/
there are a lot of basic steeps how to run it.

[electric2u]

it works now, i downloaded the old vertion of emc2. but i have a new problem now. i have a # 25 chain with a pitch of .25, a full turn is 2.25, full step per revolution is 3200, and 1422.2222 step per inch. what do i put in the moter set up i put 2.25 in the leadswear part and it hit test and it runs off the table i put it at 1in and still it runs off the table. can you help

thank you

[vlmarshall]

i have a # 25 chain with a pitch of .25, a full turn is 2.25, full step per revolution is 3200, and 1422.2222 step per inch. what do i put in the moter set up i put 2.25 in the leadswear part and it hit test and it runs off the table i put it at 1in and still it runs off the table.

The "Test This Axis" function ignores home and limit switches, and WILL run out of travel if you try to jog too far.

[vlmarshall]

What do you mean by "runs off the table"?

[slavkok]

it works now, i downloaded the old vertion of emc2. but i have a new problem now. i have a # 25 chain with a pitch of .25, a full turn is 2.25, full step per revolution is 3200, and 1422.2222 step per inch. what do i put in the moter set up i put 2.25 in the leadswear part and it hit test and it runs off the table i put it at 1in and still it runs off the table. can you help

thank you

I'm little confused what you ask. If you use chain/sprocket then just enter the number of teeth into stepconf. #25 ... I don't understand.. Metric country here.
Do you have just sprocket on motor and chain drive to gantry?

[electric2u]

all so there are 9 teeth on the gear with a pitch of 1/4

[slavkok]

all so there are 9 teeth on the gear with a pitch of 1/4

What drive chain you have?
Do you have sprocket on motor and chain drive to gantry?

Or you have sprocket on motor and another one in lead screw? If so what leadscrew?

... or at least photo of drive mechanism...

[electric2u]

i have motor then sprocket, the sprocket is on the motor( sprocket 9 teeth pitch 1/4) then chain(ANSI chain #25 pitch 1/4) the motor in on the axis no leadswear. the chain is the drive right of the motor.

thank you

[electric2u]

how do you put a picture in there?

[slavkok]

So you machine does 9 x 1/4 move on each turn.
So your pitch is 2.25" per revolution.
If you use Fullstep at 200/Steps/Rev then you have 0.01125" move each step.
In HalfStep you have 0.005625" resolution


so for basic just enter:
Motor steps per revolution 200
Microstepping 1
Pulley 1:1
Leadscrew pitch 0.444444444444 rev/inch (you need to make 0.44 turns for 1 inch travel)
And other as you have on machine.



For adding image just look little lower of box where you type. There is button named "Manage Attachment" .. Be careful as image can't be so big. read instructions.

[electric2u]

so do i put the motor drive at 1(full step) or at 2(half step)
thank you
kevin

[electric2u]

ok i have it set at
1 full step
leadscreaw at .44444444

played with the velocity and acceleration and get no move ment but if i move leadscrew to 2.25 it moves. in test area i have set i 1" it moves like 1 foot or so

[electric2u]

OK i got it i works great i had to change the micro steps to 16 and it works sounds great thank you thank you
but if you don't mind i might have more questions
in the table size say my Y is 34" do i put in -34 and 34 i won't my home to be in the corner of the table + or - 2" ?

thank you
kevin

[vlmarshall]

Your stepper drivers use 16x microstepping? What driver is this? Are you guessing at settings? You'll get accurate performance only by going through each step correctly.

Most machines that I've used set Machine Zero (home) at one corner of the travel, or a short distance (.100" or less) from the limits.