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Messages - Zaae

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111
General Mach Discussion / Re: Attatch a hotkey to a mach 3 button?
« on: June 19, 2008, 03:55:55 PM »
Too easy.

I'll have to try something tougher next time!

Thanks =)

112
General Mach Discussion / Attatch a hotkey to a mach 3 button?
« on: June 19, 2008, 12:31:28 PM »
I've found and modified some code that I've managed to get working with the 'auto tool zero' button. That works nicely.

I'd like to have it so that the 'alt+z' key combo will trigger this function. Is there a way to do this?


Thanks!

113
General Mach Discussion / Re: CV Mode .. thought I understood, but ..
« on: June 08, 2008, 01:07:05 PM »
It sounds like sshneider is having the same results as I am. No matter what I change about CV mode, the only time the machine shows any difference is when plasma is enabled.

I've noticed a couple minor glitches here and there too. One that's got me a couple times is that *sometimes* when the CNC computer is rebooted, the setting for TOOL CHANGE is lost. Even after manually saving the settings, once in a while, tool change is set back to IGNORE, and it doesn't stop and wait for a new tool. This makes a bit of a mess as I'm sure you can imagine. Trying to do detail work with a 1/2" end mill doesn't work so well.

I've taped some notes on my monitor as a checklist before I start any programs to make sure things are set up correctly before I start.

114
General Mach Discussion / CV Mode .. thought I understood, but ..
« on: June 07, 2008, 04:35:24 PM »
I've been running my machine with CV mode on, CV Dist Tolerance at 180, G100 Adaptive NurbsCV on (whatever the heck that is), and Stop CV on angles at 180.

I've been cutting a lot lately, and I thought I had everything all tuned in, but today I thought to myself "Self, that thing sure is jerky still" and decided to go fiddle with the CV settings again.

After a few changes, I turned on Plasma mode just for kicks and WOW - my machine smoothed out SO NICE!

As a test, I turned CV mode off entirely, and I saw no difference between it being off, or on. The only time I noticed a difference was when plasma mode is on.

Here's the question: What did I just do? Am I going to run into trouble having this on since it's not a plasma torch? Why am I not seeing any change without it enabled?


Hope this made sense, and thanks :)

115
General Mach Discussion / Re: Stepper motor setup questions
« on: April 25, 2008, 12:13:57 PM »
Okay, thanks for the tips. I have to drive a couple hundred miles today, but when I get back I'll try out your instructions.

One more thing... The "Auto tool zero" button still says it's not yet implemented. I was dreaming of having an alligator clip on the bit, and a small 1mm thick metal object I could use to set Z to -1.0000 when they make contact. Is there anything like that around? I haven't had much time to check out macros or brains yet.

116
General Mach Discussion / Re: Stepper motor setup questions
« on: April 25, 2008, 11:31:52 AM »
Hmm, I hadn't thought of that Stirling. I'll give that a try tonight. So, does un-checking "Stop CV on angles >" cause CV to be enabled all the time then?

117
General Mach Discussion / Re: Stepper motor setup questions
« on: April 24, 2008, 08:42:18 PM »
Oh yes, I can understand what you mean. I have cut parts that were square here, round there with no problems, smooth as butter. It's just that I'm trying to do some artsy fartsy type of stuff, and I always expect more :)

I guess what I was thinking of was some program or something that could identify an arc in a gcode file and replace that code with an arc function. This may or may not exist, and if it does, it most likely costs more than my truck.

Computing power definitely isn't the problem. I won't bother with details, but it's not.

I did manage to get it to go a little faster by ramping up the acceleration numbers for the axis, but at the time I had CV set at 45* which was making the table shake when it would get to a corner. I haven't tried it with the "stop CV on angles >" set at 0 yet with this new found speed, but I'm going to try it out yet tonight. I did notice that while carving in wood, my bits left a less than desirable finish with higher speed + CV stopping now and then.

Thanks for your thoughts on the subject :)


118
General Mach Discussion / Re: Stepper motor setup questions
« on: April 24, 2008, 04:08:38 PM »
So, aside from simply not using so much code that does not contain actual geometry, does any other post-processor do a better job of 'compressing' the code, or using the geometry whenever possible?

For instance, I had a piece I cut recently that had rounded corners on it, and it came into mach 3 with the corners in a different color, and the code was geometry, yet other curves in the same model were treated as many straight lines.

I appreciate your help :)

119
General Mach Discussion / Stepper motor setup questions
« on: April 24, 2008, 03:42:00 PM »
Hello again :)

I'm working with a set of KL23H276-30-8B steppers from Keling technology.

The machine moves pretty quickly on rapids and on geometry codes, but when it's run on small, detailed work, it slows to a crawl. I've never operated any other machines, but from what I've read, the last project I ran should take around 15 mins on this machine, but it took over 30. I'm cutting very shallow, so faster isn't a problem.

Presuming I already have the steps/mm set correctly, aside from velocity and acceleration, what other settings should I tweak? I am using CV mode @ 180units. 45* override and CV feedrate @ +1.0000.

I realize there are physical limitations on the motors and such, but if I have simple geometry, say a circle, the machine flies. If I'm working a cut where the toolpath is made up of a bunch of connected points, it's slow city again.

One last example: If I cut a true circle that mach 3 runs a geometry command, that goes fast. If I draw an oval the same size and mach 3 reads it as a bunch of locations to move to, it's slow.

Hope I'm making sense, I'm kind of new to this software.

Is there a way to overcome this?

Thanks!
 


120
This is the third time today I came here to post a question, and as I typed I realized what was going on and was able to figure out the problem on my own, but since I'm here I have a few things I'd like to say.

This post is by no means a 'bash' to the creators, in fact rather than just coming here to gripe, I hope I can give some possible solutions to the few things I've noticed. Overall the code in this software is great. I understand that it's a work in progress, yet I've been surprised several times at how well it handles difficult cuts.

If I might make a couple suggestions for future versions that may have saved me some time and confusion:

--- Slightly irritating things ---

1 - Mouse scroll wheel doesn't do anything. It's a bit cumbersome to get used to since so many programs use it to zoom. It's tough to remember this doesn't. Coming from CAD software or whatever back to LC and suddenly all the controls are different.

2 - Holding shift doesn't multi select like you'd expect with most windows programs. I understand that shift is used in navigation instead.

** I'm sure these problems are minor compared to other projects, but please consider giving us a 'key binding' menu or something similar. I like to be able to set program controls to my personal preferences.

3 - The delete key sometimes doesn't work. Many times I have to deselect and reselect a chain to get it to work, or alternatively mouse over to 'rem objects'

4 - If I've been working on a job, then load a new one and press "ooops", the last oops file from the previous job is opened instead of the new one. It looks like the oops file should be saved again right after a new project is opened.

--- Things that would be nice ---

1 - When I first bring a drawing into LC, it would be great if the original drawing lines could be set to be a different color. The reason for this is when I have a complex drawing with lots of islands being pocketed, it's easy to lose track of which lines need to be deleted. I almost never have any of the original drawing lines left when I'm done in LC since I draw the job to scale, and need to cut around the geometry, not on it.

2 - When you use the "Set Depth" button from the right panel, your mouse becomes attached to the 3d model to show the depth. This is great, it's nice to be able to do it this way, but there's no accuracy to it. Holding ALT / SHIFT / CTRL or some combination should slow the movement for more precise control.

3 - It would be great if when you selected several layers or chains in the 3d window, the OPS window nodes would somehow show that they are selected. This would really help when it comes time to clean up your rapids and make sure the cuts are going in the right order. I've personally dealt with those node trees before, and understand this isn't an easy task. Maybe use the existing check marks for this, or change their background color?

4 - Too many mouse movements to get things done. This is minor, but time is money  :) -- The right click mouse menu could have more options, for example:

Tools  (click this and get a sub menu of available tools)
Operations (click this and get a sub menu of operations such as pockets, offsets, etc.)
----------------------------------------
Delete Selected Items
Join Two Selected Primatives
----------------------------------------
ETC.
ETC.

At the very least, some hotkeys would be great.

--- Things I don't understand ---

I gather that the green portions of a chain are where there is actual geometry for that part of the cut, correct? The blue line then just follows the coordinate system for lack of real geometry, yes?

I've noticed that when I make a pocket, sometimes there are little bits of green (actual arc?) but for the most part the cutting path is blue. Since the green portions seem to cut smoother and faster on my machine, I'd like to know if there's a way to transform more of the cutting path into geometry?

Anyway, that's about all I can think of off the top of my head. Thanks for the cool software!




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