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Messages - RICH

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4991
LazyTurn / Re: LazyTurn
« on: February 08, 2010, 08:33:12 AM »
Quote
TURN ON THE FINISH PASS

We would all like to have the finsh pass done and turned on.....
But if it has known problems that have not been resolved........... then why do it!
Then all the effort will be to answer questions on why something is not working instead of testing and
and eliminating the problems in the first place.

BTW, if you want code for just the profile you can get it using LazyCam. 

RICH

4992
LazyTurn / Re: LazyTurn
« on: February 08, 2010, 08:19:46 AM »
Quote
I don't understand what "Final Pass," "Per Pass," and "Tolerance" are for.  They don't seem to be functional.
 Only "Clearance" makes any difference in the red line's position.

Here is an anology:
Lets cut the grass on your front lawn. There is nothing in the way from the side walk until
you get near the house which has bushes and flowers planted all along the front of the house
in an irregulary shaped edged landscape.
Two grass cutters of different width's will be used.
The wide lawn mower is used first starting at the sidewalk. So you are going to make ROUGH passes
until you get close to the front landscaping. Each time you  make a cut across the lawn you have made
 a PASS at cutting the grass. All of the wide cuts can be called a rough pass.

The next door neighbor dosn't want you cutting his lawn. He watches you cut the grass and is
 making notes on each and every step you make and in his note book he is writing down all the PATHING
you have taken. To not cut his grass, you leave a small amount  CLEARANCE which will be cut using the
 smaller grass mower.


Now it is  time to  remove the grass close to the edged part in front of the house. This FINE pass will require using
 the smaller mower. So you make a number of pases. The first time you try to cut the irregular shape
you leave a CLEARANCE mowing away in a somewhat varied way but never cutting into the the reamining grass.

All that remains to FINISH cutting the grass is to edge along the landscape. You  will edge such that there
 is no grass, so "0" clearance. The edger can only cut so much and you want a nice clean cut so the FINAL
PASS will be very small. It will take a number of cuts so each cut is limited PER PASS.
Your very carefull when edging the lawn. You watch the edger cutting along the ladnscape and also keep
looking ahead of it so you can adjust how the edging is happening. If you only look ahead once in a while
the edging will go quite quickly, but if you are constantly looking at the actual edge cutting and just in front of it
it will take you longer to edge the landscape. That looking at and ahead of the cutting is called TOLERANCE
for the finish pass.

-------------------
Currently LT dosen't show the pathing for each finish pass and all you see is a red line / the edging.
From a testing point fo view, all we are interested in is if the final finish pass will follow the contour of the profile.
within some set clearance.

So in the manual, on page 20, are the preliminary definitions for each item associated with the finish pass.

RICH

4993
General Mach Discussion / Re: re lpt 2 and second breakout board
« on: February 07, 2010, 09:10:51 PM »
Dusty,
Glad you got it sorted. Post a pick of the fluted barrel.....and hope it dosn't spring on you.
LOL,
 RICH

4994
LazyCam (Beta) / Re: multiple passes
« on: February 07, 2010, 09:05:01 PM »
Quote
Now you have me confused. I have looked at the manual and the only thing i can figure is that in the tool setup you put in the max per pass and in the layers tab in the cut box you put the desired final depth of cut not the depth per pass.

Thank's for correcting me.  :) What ya expect from memory......sorry about that!
I only wrote the manual and i can't read!  ;D
RICH

4995
General Mach Discussion / Re: dro's no movint
« on: February 07, 2010, 08:57:16 PM »
Just one computer and one PP at time.
I would use the card as that has the higher voltage and as such would swing the full high to low required .
You need to have two things in place...
 A working xp computer system and then a PP both of which are functional. I will assume that the pp card is like new / known to be good, then that leaves the computer which only you can assert. Without that, its kind of fruitless to go further. All the Mach configuration / drive hookup etc can be worked out if the first two things are in place.


Three assus pc's and they don't work.......good grief. Is this with the same pp card?

The only thing that i had a hard time with was when i just got the new pc, the pp card was installed, but for whatever reason, i had to go in and out of MAch about 10 times before it recognized the pp address. Thus no axis movement. I wrote it off as a fluke.

RICH
 

4996
General Mach Discussion / Re: dro's no movint
« on: February 07, 2010, 06:15:16 PM »
bobbya47,
You have me confused, one time you have 0-3.3 v another almost 5 v.
You never mentioned what you drive requires. But lets backup some....

-Mach will send the info to the PP for the pulses required.
-You have shown that there is a high and low voltage for the pulse. But you have also shown that is a difference between the pins.
So how about just getting only one axis to work with the pins that put out the higher voltage rather than playing with them all and making it complex. Once you have the one axis working you can swap that cable to the other drives and see if they all work. Then you have the setup which you know needs to be in place to get the others to work. You can add all the other stuff, like homing etc later.

What make drives are you using? Other than Gecko post info on them.
RICH



4998
Good post Gerry....

 I use 50% and a shuttle of .005 and the backlash is rather hard, by that i mean almost instantaneous.

I suggest one play with the settings starting with 50% ( i don't like 100%, but that's my nickle on it ) and say shuttle of .5, then .05, then .005 to see the differences. Then up the % to say 75%, and again to 100% with the the different shuttles.
BTW, you may want to see the same affects when using exact stop and constant velocity. been a while since i played with the compensation.

RICH



4999
The only problem with the taper one is that you end up with a real long Z start point if i remember
( haven't used it in a long time). Have fun ...
RICH

5000
General Mach Discussion / Re: dro's no movint
« on: February 07, 2010, 05:09:22 PM »
bobby47,
Do you use Skype by any chance?
RICH

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