Joypad question:

hallo, i bring back to life this thread because i would like to go on with solving the 'jogging in world mode' issue.
now finally after some months i've some time to spend on it.

i started doing againg the same tests i did last year:
tried:
-tetrapod kins
-tripod kins
-bipod kins.
tried with:
-hal_input
-joyhandle
-hidcomp
always same issue:
into joint mode i can jog simultaneously all 2/3 or 4 axis.
when i pass into world mode i can jog only one axis, when i add another axis (for ex. X and Y together..) it jogs only one axis (that one which gave last value) doing instead of a diagonal between X and Y, a sort of a stair. Sometimes this return an f.error. but it's rare.

i can say that my setup is with stepper motors, that i'm using now emc 2.4.6 both on 8.10 and 10.04. And that if i jog in world mode using keyboard it works ok.
i tried also with trivial kinematics, but since i cannot 'jump' to world mode, it's useless.

these are my files of a bipod, if anyone want to try them with a joystic or joypad. In this configuration i also tried to setup units in inches. normally i use mm.


i really wish someone can help me, because for my machine jogging with a joystick in world mode is really important!
maybe trying this setup, or sending me a working setup to try.

Thanks, Davide.

i'm triyng also on emc 2.5 and 2.6, with the same issue.

it seems logically strange, because if i jog in world mode only axis X i.e., it works, so kinematics work ok with joystick input.

what doesn't work is the computing of mixed joystick analog input (X and Y together..). The software computes only one joystick analog input at a time. please help me in realizing where the problem could be.

Can you run your config in one of the sample config sims?

John

Sorry john, i think i really didn't understand your suggestion. (maybe my language issue) ...so what?
i'm happy you're triyng to discover a solution for this problem, so i guess it's not only my problem, is it?

really, triyng to think logically, i cannot understand where is the bug. why if i push up-arrow and left-arrow together it's ok, but if i push up-analog and left-analog joystick it isn't?

who's the guilty module?

thanks, for answering john, but please tell me more!

davide.

mmmh..
ok i'll try that tomorrow.
With this change i think i should enter world mode also into trivial kinematics, is it?

andy, can you tell me if at least one time you could jog with a joystick in a non-trivial kinematic system, in world mode? just to know if i'm doing something that nobody could do or if i'm the only one who cannot do!

thanks, davide.

andypugh wrote:

Can you try your joypad setup with trivkins, then set trivkins to KINEMATICS_BOTH and see what happens?
(I might try the same thing myself, but it's all a bit awkward with my computers where they are at the moment)

Ok, today i could do that. ...and...now i can exchange between joint and world mode into trivial kinematics, but the problem remains the same.

to clarify i took a snapshot of what happens if i try to move the two axis toghether triyng to obtain a diagonal movement:
i really don't think it is a kinematics problem.

it seems to me that the part of program which reads the joystick, when into world mode can read only one input at a time. But i don't know which is the part of program..

davide.

I took another screenshot, now using bipod kins:

Here what you can see is that i'm moving joystick in diagonal (in the moment of the screenshot analog X is at 0.51, while analog Y is at 1.0)
what you can't see in a picture is that halui.axis.0.pos-xxx are moving, while halui.axis.1.pos-xxx stay the same. (in fact i can see a movement only in the X direction..)

i can't find other useful things to measure here.

but one things that came in my mind is that it could be that for joystick input, there is a sort of "halui.jog.selected_axis" that make the program choose for one axis to read at a time. i've looked between all the pins and signals, but cannot find anything similar.
do you think it can be like that? (i wish i could explain what i was thinking..sorry for my limitated english..)

davide.

BigJohnT wrote:

We have been tossing ideas around a bit but have not come up with a solution.

Can you run your config in one of the sample config sims?

John

Hi John, i did what you asked. I took axis_mm_sim, i added into that my joypad.hal, i changed into trivkins.c to KINEMATICS_BOTH, so i could change into world mode, but also into the sim i have the same issue.

other ideas?