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Messages - Chaoticone

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401
Mach4 General Discussion / Re: Mach 4 Teach File
« on: November 03, 2017, 05:19:06 PM »
This is a pretty good start I think. Put the function in the screen load script and call it with buttons whose clicked scripts are
GetTeachPoint("G1 ") --for a feed move
GetTeachPoint("G0 ") --for a rapid move

Will need a function to start a new file (which would include feed rate) and a function to finish the file or edit and rename the file manually. Not sure when I will get time to look at it again.

Code: [Select]
inst = mc.mcGetInstance()

function GetTeachPoint(mode) --"G1 " or "G0 "

local AxisTable = {
        [1] = 'X',
        [2] = 'Y',
        [3] = 'Z',
        [4] = 'A',
        [5] = 'B',
        [6] = 'C'}

local MyGcode = mode
for i,v in ipairs (AxisTable) do
local pos = tostring(mc.mcAxisGetPos(inst, (i - 1)))
MyGcode = MyGcode .. string.format(v .. "%0.4f ", pos)
end
MyGcode = MyGcode .. string.format("\n")

local Teach = wx.wxGetCwd() .. "\\GcodeFiles\\Teach.tap" --Define the file name and location
--file = io.open(Teach, "w+") --Open the file in update mode, all previous data is erased
file = io.open(Teach, "a+") --Append update mode, previous data is preserved, writing is only allowed at the end of file.
file:write (MyGcode) --Write the Gcode file
file:flush (Teach) --Save written data
file:close (Teach) --Close file
end

402
Tangent Corner / Re: Optical Illusion.
« on: November 03, 2017, 05:09:58 PM »
 ???   :o   8)

Good one Tweakie! That's right up there with the beer goggles effect.

403
Mach4 General Discussion / Re: Mach 4 Teach File
« on: November 01, 2017, 04:46:32 PM »
Not that I know of but should be easy enough to do. How exactly should it work (not necessarily asking how the one in 3 works)? What does it do with the data points recorded? Stuff them in a csv file? Write Gcode using those points?

404
Mach4 General Discussion / Re: Stop CV on Angles?
« on: November 01, 2017, 09:01:49 AM »
Thanks

No problem

405
Mach4 General Discussion / Re: Stop CV on Angles?
« on: October 30, 2017, 11:03:16 PM »
Well, you can set the feed rate for any angle from 0 - 179 degrees. So, setting the speed for angles above 90 degrees to 0 would work.

The mcCVTuning wizard can populate the table for you giving the same result.

But, the mcCVTuningWizardV3 wizard in this topic is far better. It's smart enough to set the feed rate for angles to maintain a tolerance you enter in the wizard.

http://www.machsupport.com/forum/index.php/topic,35860.msg245507.html#msg245507

406
Mach4 General Discussion / Re: mcCvTuningWizard
« on: October 30, 2017, 09:42:38 AM »
Quote
I was having issues with rounding off corners as my feed rate went above 150.  Looks like I need to set up my CV feeds.  After I ran the mcCvTuningWizard and checked the CvTuningWizard it had filled in the feeds.  So I tested the path and it was still too fast.  I changed the mcCvTuningWizard setting and it will not update the table in CvTuningWizard.

I have just tested the old mcCVTuningWizard and the new mcCvTuningWizardV3-3Beta. They both update the CV table as expected.

Quote
Is there a way to reset the CvTuningWizard back to 0.000 for all angles?  Setting 90 lines back to 0 one at a time doesn't seem right.  Plus even if I do the mcCvTuningWizard keeps putting it back to my first settings.

Absolutely no need to ever set all angle feed rates to 0. That is exactly how Gcode G61 (exact stop mode) will run.

Quote
If all I want to do is slow down on the hard angles should I even be using mcCvTuningWizard?  What are the recommended numbers for a router?

Yup, CV will do that for you. The recommended numbers are generated by the new and improved mcCvTuningWizardV3-3Beta attached to the reply at the following link. The recommended numbers depend on 3 different inputs. The tolerance you wish to hold, the axis or axes involved in the moves and the lowest accel rate of the axes invloved.

http://www.machsupport.com/forum/index.php/topic,35649.msg244192.html#msg244192

CV will not account for flex, lost steps, runout, ringing, etc. Ensuring those will not affect tool paths beyond allowable tolerances is the responsibility of the machine builder/designer. However, if you know their values you can use that when entering the tolerance in the wizard. So for example....... a machine with .002 backlash, .001 runout and .003 flex could be off path by .006 in exact stop mode. But if your tolerance is .020 you could run the new wizard with a tolerance of .014 and you could get faster, smoother tool paths while staying within tolerance. To use this method though, you must know the machine and what it's physically capable of. However, if your tolerance is .005 you are already out of tolerance by design and no CV setting will ever fix that.


407
Mach4 General Discussion / Re: How to use G28.1 on Mach4?
« on: October 27, 2017, 09:09:08 AM »
G28.1 is not mentioned in the Mach4 Gcode manual. Mach3 and Mach4 are totally different and that means for a good bit of the Gcode too.

Yup, sounds like a custom m code added to the end of program to reference the machine would be the way to go.

If the machine is getting out of position between runs you have other issues to address. A properly designed stepper system doesn't loose position either. Sounds like your looking for a temporary fix for a permanent problem.

408
Mach4 General Discussion / Re: Lines in the tool path window
« on: October 24, 2017, 08:27:43 AM »
Sorry fellas, I misunderstood.

Craig is right, there is no option to change the weight of lines in the tool path display. Making sure the lines and background really contrast each other is about the best you do on that.

Show us a screen shot of what you see.

409
Mach4 General Discussion / Re: Lines in the tool path window
« on: October 23, 2017, 07:07:10 PM »
Edit the line count in edit screen mode.

410
Mach4 General Discussion / Re: How to Modify Go To Work Zero
« on: October 17, 2017, 04:06:29 PM »
This video that Rob did might help too.

https://www.youtube.com/watch?v=SZuEJn046Pw

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