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451  Mach Discussion / General Mach Discussion / Re: Mach 3 cutting undersized on: July 01, 2009, 09:20:09 PM
Sounds like your tool may not be exactly to size- are you using a re-sharpened end mill?
452  Third party software and hardware support forums. / Newfangled Solutions Mach3 Wizards / Re: x axis stops on: July 01, 2009, 09:15:42 PM
Once a wizard has created a file and returns to Mach you are  simply running gcode, the wizards are no longer in control. I see no way a wizard could cause a machine to fail like this, unless you have requested a feed rate greater than your machine can handle.

Can you post the code generated by the wizard.
453  General CNC Chat / Show"N"Tell ( Your Machines) / Re: What The World's Been Waiting For - Yet Another Power Drawbar Design on: June 17, 2009, 09:08:02 PM
The Z-bot power drawbar works exactly like this See http://littlemachineshop.com/products/product_view.php?ProductID=3034&category=209730719. Brian has one running at the CNC workshop last summer, and we had it running at Cabin Fever in January..

I talked to the guy that developed it and he told me about 600-800 pounds was enough for the Tormach tools.

I built a similar, but simpler one on my Jet knee mill. I have my table move for the z axis, so my quill is free to operate by hand. I put the bellville washers under the drawbar, then I added a simple metal bridge above the top of the drawbar. To change a tool I simply drive the quill up with the hand feed until the top of the drawbar hits the bridge, then push a bit further to compress the springs and pop out the collet.  It works fine, but I am a little light on the bellvilles, so I did have a collet slip once.
454  Mach Discussion / General Mach Discussion / Re: ATC/ Rapid changer by Hightechsystems????????????? on: June 17, 2009, 08:56:33 PM
Fred Smith of IMService has shown one  of them running at the last Cabin Fever and NAMES shows. He was running a program that just kept changing tools, but it seemed to work OK. I think it is his unit shown on the videos links of link posted.

The holder is a simple plastic finger, you program the tool to slide into it, then lift the z. The finger grabs the bottom of the holder.

455  Third party software and hardware support forums. / Newfangled Solutions Mach3 Wizards / Re: Cut Circle,Passes,and Cutter Comp on: June 12, 2009, 08:18:35 PM
Ive had a few discussions with Brian about changes for the next version. At this time I dont think we will try to make any functional changes, just make sure everything works with the new comp and all the other changes. When we ar esure its all stable under the new release Ill look at making other changes.

You are right that the cut circle could be more efficient, but the basic idea of the wizards was to be simple and reliable.
456  Third party software and hardware support forums. / Newfangled Solutions Mach3 Wizards / Re: ODD Comp Move on: June 10, 2009, 09:23:28 PM
The 2.83 version was done to fix problems created by the new comp code. When I did it I thought Brian was putting the new comp into the released version so I did 2.83. I later found the new comp is only in the one test version, but will be in the new Mach4

The change has to do with the rule that a comp move must be a linear move in the new comp. The old comp allowed an arc move. The new wizard should be OK doing a straight comp move with the old comp code.

Is that confused enough Huh?

The M9 is there because no coolant is asked for, so it issues an m9. The code is in there to make that an M7 or M8 if you choose mist or flood. Remember, the wizards are written so you can chain them together to generate one big program. It is possible (although unlikely) that one could do an operation with either flood or mist, then do a cut circle and want no coolant, so the m9 is issued.
457  Third party software and hardware support forums. / Newfangled Solutions Mach3 Wizards / Re: explanation about Circular pocket ramp on: June 10, 2009, 09:12:50 PM
The ramp code was written by Brian a long time ago, and I admit I have never exactly understood it. The angle is the important value, zero means straight plunge into the work. A value up to 90 is allowed, but it seems to me at 90 it would never get down. Although the ramp dist is an input the code calculates a new ramp distance value based on the tool dia and the ramp angle, so I dont think the value in the DRO really matters.

Sorry I have not got a better answer.
458  Third party software and hardware support forums. / Newfangled Solutions Mach3 Wizards / Re: some little annoying issues on: June 10, 2009, 08:59:02 PM
The reset is happening because the screen update time is long enough to trip t0eh watchdog timer in Mach. It happens on slower machines and large screen sets like the NFS wizards. You can turn off the 'use watchdog' in the config page, or get a faster machine.

Thats how the wizards are programmed, always going through the material select and tool select. No real way to change that. For a single screen wizard the "run last wizard" button is more useful.

The Zstart or Ztop issue is one tha tis oftem discussed, but since the current way it works is burried in many screens its just to big a change to make. It would impact every screen of the set.
459  Third party software and hardware support forums. / Newfangled Solutions Mach3 Wizards / Re: ODD Comp Move on: June 05, 2009, 06:26:27 AM
There is something very strange here- line 10 in your example is a peck drilling cycle. There is nothing in the cut circle wizard that does peck drilling. Have you edited that code? Since there is no G80 to cancel the peck cycle the rest of the code is very strange.

It also appears you ran the wizard 3 times in the one program.

How about a simple example, just one run of the wizard.
460  General CNC Chat / Show"N"Tell ( What you have made with your CNC machine.) / Re: Video of my milling process - need advice on improving efficiency on: June 03, 2009, 08:39:41 PM
A shellac or other sticky way to hold parts is fine for one off stuff, but if you really want to make these in large numbers make a holding fixture. Id buy my stock in a width just enough to make one part. Start it in a vise, with just  a bit more than one half sticking up out of the vise, Cut your part half way down.

Next make a soft vise jaw and cut into it the image of the part- some call this a 'nest'. You flip the half cut part into the nest, tighten the vise, and do the other half.

Id also program an arc in and out on the cut to minimize the cutter marks, and Id program the part over size by about .010. Then Id make one final pass around the part at exact size as a finish cut.

I agree with the Bridgeport size machine. You ought to be able to run much faster than on the Taig. If you really want to buy a ready to run machine also look at the Tormach.
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