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Messages - Chip

Hi, Greg

I setup an  A axis rotational with backlash enabled, Using a sherline rot. table that doesn't have much backlash.

Simulated it with 1/2 handle turn of backlash, Motor tuning setup for Deg moves.

Works Fine Hear.

Just as TP stated, Caution, If it's as you stated, "final output is tight" Engraving should work ok.

Hope this Helps, Chip


LazyCam (Beta) / Re: No Entities Found
« on: March 08, 2008, 08:10:29 PM »
Hi, Swbogart

Same as Bob, Could not get it to load in LazyCam but was able to open it in BobCad and then re-saved it as a new DXF file.  The new file opened in LazyCam

without a problem.

What Cad are you using ?

Thanks, Chip

General Mach Discussion / Re: phantom limit switch
« on: March 08, 2008, 03:18:31 AM »
Hi, Spiwrx

In General Configuration, Top Rt. Corner set the "De-bounce Interval" to 1000 for a start, (Helps with stray/spurious signal reduction).

Your Geckos are "10 micro step", Steps Per, In Motor Tunning should be 20000, (10 tpi x 200 stp-rev x 10 micro-stp = 20000).

In Ports & Pins, Motor Outputs, set the Dir & Steps to a "Checked".

If any axis runs backwards.

Opt. 1, Swap the wires on "one coil" (Phase A & Phase B) or (Coil A & Coil A-), Depending on how it's Marked.
Opt. 2, In Home & Limits, Set Reversed to "Checked" for the Axis.

The following steps are a short cut to Tuning Mach3, If you follow this, I think it will expedite your setup and understanding of mach3.

(Mach3 download defaults are a little confusing, Feed-Rate Setting Defaults to 6.0 and causes many to tune to this value).

Under "Operator" (Top row, Click On "Auto Calculator", This turns on a Pop-Up calculator).

Click on the Feedrate Number "Disp.Box" on "Program Run" Screen, Enter the value as described below, 150 or greater.

Your Velocity and Acceleration settings in Config, Motor Tuning set's your max speed's.

If the velocity top's out you need to turn up the "Kernel Speed" in Ports & pins and Re- Start Mach3. 

If you haven't setup/calibrated your Step's Per to inch or mm, You need to do that first. (Steps Per set to number of steps to move one Inch or MM)

On the Program Run page set the feed-rate to 150.00 or higher for fast machines, (This puts your feed-rate well above what your Max Velocity will be).

Hit the TAB key for pop-out Jog window, Set the Slow Jog Rate to 100 %, Jog Mode to "Cont.", (Axis will move as long as you hold the key down).

Now your Setup to use the axis arrow key's or mouse arrow button's to set up your velosity and acceleration, (Setting up vel/accl is a balancing act).

Set your vel. to 45 and accl to 15 for a start (Vel is typically 3 times higher than accl (more or less).

Increase the accl up till your servo trips or your steppers slip then back it off 10 % or so,

Then set the vel. up till it trips or slips also, Back it off 10% or so, Or till you think it's fast enough (Speed's can get scary on big servo or steppers).

Then after you get the max'es set, Your slower G01 with F speeds should be fine.

With G00 moves you'll get max speed for your Machine up to your "Velocity Setting".

This should get you pretty close, As your experience grows with Mach, You'll need to adjust accordingly.

Be Careful As You Go.

Hope this Helps, Chip

LazyCam (Beta) / Re: LazyCam Pro question
« on: March 08, 2008, 12:33:43 AM »
Hi, Saumur

LazyCam is still a Bata Program, The post's still need some work, Even higher priced Cam packages require some tuning to get the post's the way you may want them.

There are many option's with G-code, Hears a link to Mach3 Turn http://www.machsupport.com/documentation/Using3Turn.pdf

I don't understand your comment on G00 moves as use-less, These are rapid moves.

If thy are causing problems like lousing position when you use them, Your velocity setting are not set-up properly.

Read up on G-code some, You need to understand how to use it.

Thanks, Chip

General Mach Discussion / Re: Wierd Font Issue
« on: March 07, 2008, 06:40:59 PM »
Hi, Richard

Is the above xml/Profile a copy of the one you were having problems with ?

Hears what I get.

Thanks, Chip

General Mach Discussion / Re: Wierd Font Issue
« on: March 07, 2008, 06:15:32 PM »
Hi, Richard

To: Post your XML

If you have a Standard Install of Mach you'll find the xml's in C:\Mach3 folder.

Find the Mach3Mill.xml, Make a copy of it and Re-Name the copy to a unique name,  yournameMach3Mill.xml should work.

Use the "REPLY" Button then Attachment Options, "Browse" to C:\Mach3 and find the file, Double click on it and Post.

Hope this Helps, Chip

General Mach Discussion / Re: Encoder_info_help
« on: March 07, 2008, 05:11:50 PM »
Hi, GaryV

You mat need pul-up resistors, Ref to Picture.

Thanks, Chip

General Mach Discussion / Re: Encoder_info_help
« on: March 07, 2008, 04:35:59 PM »
Hi, GaryV

Colors of wires, terminal markings, picture of encoder, any aditional Info would Help.

Thanks, Chip

General Mach Discussion / Re: Wierd Font Issue
« on: March 07, 2008, 02:26:08 PM »
Hi, Richard

I think it's a slight difference in the Y dro size, Screen4 screen editor is probably the only to fix it.

Try this screen.set below.

I don't understand why having a new Profile would make a difference though

Hope this Helps, Chip

Hi, Brian

Tool Path OFF Pic's

Thanks, Chip