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Messages - NormB

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141
General Mach Discussion / Re: Stragen events question
« on: January 17, 2010, 10:30:17 AM »
That really is the problem, the same job one time it will run just fine no problems the next time multiple  Z Odysseus and then other times maybe only one issue it's just not consistant and that tell me it's not a code problem it's something in setup or a mechanical problem of some sort that when certain conditions are met off we go.  I just am at a total loss on this.

142
General Mach Discussion / Stragen events question
« on: January 17, 2010, 09:32:03 AM »
I am running G-Code developed by Vcarve things are ruining normal.  Someplace in the middle at the end most anywhere the Z axis just goes off in no mans land.  I can raise an inch or more ) is now 1" above the work piece and I am cutting in the air.  I stop the program and reset the Z to real 0 then back up and repeat the cut.  This is a real pain and I am not able to find what is happening.  Something is causing this but I have no idea what to look for.  X and Y axis are all fine only the Z is messed up for some reason. 

Any ideas what I can look for to eliminate this problem  It's hard to reset the Z in the middle of a run.  To say nothing of finding your place in the code to start from here.

Norm

143
General Mach Discussion / Running a macro
« on: January 13, 2010, 10:02:53 AM »
How do you get mach3 to run a macro?  I have one I amplying with but do not know how to tell Mach3 to run it.

144
General Mach Discussion / Re: Motor Tuning
« on: January 08, 2010, 10:10:05 AM »
now that was very enlightening Rich, Thank you for the input, I have downloaded the specification sheet etc. from the Gecko site.  A little reading is in order now Think. 

I really understand much better the relation now, I had a pretty good idea before with previous comments but you added a little more perspective to the relations.  My worst case scenario is usually white oak.  I do cut pine etc walnut but if I can cut white oak all domestic hardwoods are good to go.  Blood wood I would have to take a look at that one.  Like cutting concrete. *L* 

145
General Mach Discussion / Re: Motor Tuning
« on: January 08, 2010, 08:40:54 AM »
Oh a new term, CV mode? God, I have a lot to learn. Thank you for that information that will really help me. I will use your numbers as a starting point to see if how it does.  I can adjust from there if necessary. :)

Norm :)

146
General Mach Discussion / Re: Motor Tuning
« on: January 08, 2010, 08:24:34 AM »
Thank you that also helps..... I guess I have never had to do this until now, so it'snew and I am uncertain moor understand more clearly.  When I purchased my router I was running Mach2 and the setup parms were given to me by the designer and motor tuning was already setup with his numbers.  So I never experimented with them at all.  I do know this since my playing up to this point in Mach3 the motors can run VERY smooth compared to Mach2 and the setting I was using.  What I am not certain of is how do you know you are missing steps?  As I played with the tuning last weekend I found I can move the Y axis fairly fast and the motor is smooth.  I am not sure I I missed steps though.  I guess that is what I am talking about with optimizing the drives.  Making sure I am getting the best performance for both accuracy and sped I can get.

147
General Mach Discussion / Re: Motor Tuning
« on: January 08, 2010, 06:20:12 AM »
Once again thank you, I now have a better understanding as to what each adjustment is doing and I do understand the tradeoffs between accel and rapids.  Cutting wood is a bit faster than metal, however hard wood has to be cut much slower than soft wood.  I will begin to play with the adjustments tonight and see if I can strike a happy medium that works for me.

Thank you again.
Norm

148
General Mach Discussion / Motor Tuning
« on: January 08, 2010, 05:17:20 AM »
I have watched the video tutorial here on motor tuning and am still comfused.  I understand how to control changes but what is right?  What do you look for in making these changes.  I ran this machine in Mach2 but the setting are completely different in Mach3 so the numbers do not translate at least I am not able to translate them. 

My system is using 270 oz stepper motors 200 turns with gecko g540 driver and the lead screw is 4 turns per inch so calculating the turns per is easy 8000.  Now the fun begins.  Moving the sliders to adjust speed etc.  What are you really looking for to optimize the system for best speed and movement.

I should probably mention I use the for routing wood the machine is 24 x 48 my normal feed rate in hard wood is around 50 ipm and a max cut depth of around 1/8 inch.  I know the feed rate is controlled in my G-Code file.  The motor tuning has some affect on this does it not?

Norm

149
General Mach Discussion / Re: Correct orentation for X and Y
« on: January 08, 2010, 04:04:44 AM »
I guess it really doesn't matter what you call X or Y as long as you can keep it straight in your own mind when you set up the tool path.  Bing simple mined myself I like to see the Cad screen oriented the same way my router table is so the the X and Y match and I am not making corrections from one step to the other.

I am rather new to this so I try to keep things simple and even that at times seems complicated but as time passes I guess it will become easier.  I mus say this is the best forum for any product I have ever joined.  Many Many ideas and I really think they are all correct for what each person does. 

150
General Mach Discussion / Re: Correct orentation for X and Y
« on: January 07, 2010, 11:49:52 AM »
using your picture to explain the red button is the front of the machine as I see it.  If I move to the button so it's at my belt buckle I am standing in front of the router and my 0-0 is to the left of me.  The corner we see in this perspective is opposite to 0-0 it would be on my right if I were directly in front of the button.

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