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Messages - dbvogt

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1
General Mach Discussion / Slight hesitation/clunk in all motors
« on: January 05, 2015, 12:53:21 PM »
All three motors on my Taig mill now have a slight random hesitation since replacing a crashed Vista PC with a newer Win 7 PC. The hesitation happens both in jogging and cutting air. The sound is not quite as strong as the “clunk” when switching on the Gecko G540 controller. I believe all the settings are identical with the ones I’ve been using for several years. Except for the PC, the hardware is identical with the old system. I've played with the settings with no change in the hesitation. Has anyone had experience with this? Any suggestions to diagnose the problem?

2
LazyTurn / Re: Turning only part of a drawing
« on: April 24, 2012, 09:44:47 AM »
Forget what I wrote about setting the yellow pentagon to 0 to stop facing off the stock – it doesn’t work all the time. I’ve duplicated your images (thank you again) except your very first one. LC insists on machining the spigot and facing off the face of the pillar using a left 35 degree diamond doing a fine pass. The rough pass does not do this. I’d like to overcome the quirks in LC as any alternative CAM is at least $400 and I’ve just retired. Please don’t take these comments as a criticism of Mach3 software. Mach3 Mill and even LazyCam are a great resource, a pleasure to use and I actually get things produced.

3
LazyTurn / Re: Turning only part of a drawing
« on: April 24, 2012, 07:21:07 AM »
Very good, thank you very much. I'll have to play around some more.

Next question. The tool code, for example "R0.0100-IC0.3750"

Is there a source that explains these codes? The ISO is a hint.

If there is ever a reason to update the LazyTurn manual, I'm available to assist.

4
LazyTurn / Re: Turning only part of a drawing
« on: April 23, 2012, 04:43:53 PM »
Thanks for the reply.

If the Rev: 8 Lazyturn manual is ever updated, the following could be added to the appropriate sections.

In 6.2.1 Ruler Pentagons
Note: if the graphics shows a path for facing the stock and this is not your intention, set both green and yellow icons to 0.

The Z start offset (yellow) section could use further explanation: what is it used for?


In 7.2 DXF Drawing
Note: do not show on the drawing sections of the part that are not to be machined such as spigots or additional length of the part to allow for turning centers.


5
LazyTurn / Re: Turning only part of a drawing
« on: April 21, 2012, 09:23:23 PM »
Both LazyCam's SIM and LazyTurn insist on facing off the stock all the way to the center regardless of whether the spigots are shown or not. Unfortunately, there's going to be a live center there. Setting the start point to -.25, for example, doesn't seem to help. It looks like these sections of the G code will have to be manually deleted.

6
LazyTurn / Need to turn only middle section of drawing
« on: April 12, 2012, 10:08:12 AM »
The system is timing out using Reply just for images. Here are 2.

7
LazyTurn / Need to remove only center portion of drawing
« on: April 12, 2012, 10:04:35 AM »
The system is timing out using Reply

Here are some images to further explain some problems. The DXF is a redrawn pillar with the “spigots” added. The major diameter is ¾ or radius of .375, the minor radius is .172 leaving a radius to cut off of .203. Assume .05 per cut so it should make 4 rough passes. Correct?

Tif 1 is a screen shot of the righthand tool setup. The left and center tools have similar specifics. Tif 2 shows LazyTurn before the rough pass is created. Note the depth per pass is .05. Tif 3 shows the first rough pass.

I’d really like Mach3 to skip any machining at the spigots as shown by the paths at these locations. How do I set up the drawing or LazyTurn just to machine in the center of the rod?

Why is the amount removed only .118 or what exactly is the .118? I didn’t find this in the manual. Why do the passes leave so much left on the minor diameter section? The second rough profile with the lefthand tool (not shown) is similar to the first but takes only .001 off. Tif 4 is the finish profile (not shown, only 4 attachments allowed) and it apparently has to take a lot off. The number of passes should be 3 but there have to be many more.

Any suggestions?

8
LazyTurn / Turning only part of a drawing
« on: April 11, 2012, 09:52:18 PM »
I've drawn a 3/4 diameter 2.24 in. long clock pillar in the baluster style and want to use LazyTurn and Mach3 Turn to finish it. I'll form the 1/4 OD end parts that fit into the 1/8 in. clock plates first as I need to drill and tap them. I'm not up to doing that with a Sherline lathe under CNC so have not shown them on the drawing. I assume I must show the spigots, as these parts are called, on the drawing but how do I tell the two programs to machine only the center part? My knowledge of the relationship of machine, program and part coordinates is a bit hazy. The machining appears to be between the end of the billet and the chuck. I'll probably use a 4 jaw chuck and a tailstock center for holding and both a right and left hand bit.

Another related matter is the example of a 35 degree diamond tool in LazyTurn. I haven't seen such a shape in the 1/4 in holder size. I've got a set of Warner's holders and 80 degree HSS inserts but they don't appear to have 35? Any idea of where to get 35 degree inserts and holders, carbide or HSS? The 80 diamond's do not get fully into the corners of the baluster but a 35 should do better.

9
The PDF is a 7 page tutorial on drawing a clock wheel to use in a mill to cut out a wheel blank. The CAD program is Microstation but the idea can probably be used in other programs. I've used this procedure to do all the wheels for Wilding's English Regulator movement, run the drawings through LazyCam and Mach3 Mill and cut them out on a CNC Taig mill.

10
LazyTurn / Re: LazyTurn
« on: January 28, 2012, 09:26:12 PM »
If the manuals were more visible, maybe more people would take the plunge knowing the resources were out there. It's not until I set up Mach Turn to run a recently retrofitted Sherline that I found there was a LazyTurn manual. There are a lot of messages asking if manuals even exist.

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