Messages

7181

General Mach Discussion / Re: "Capacitive" Encoder

« on: August 26, 2008, 07:52:01 PM »

Well I'm servo illiterate so can't help you there. Now stumps, well they don't call us "stump jumpers" for nothing back n the
coal region, we just jump over them. 
I was hoping that you would get a chance to check out the resolution settings and also see how prone to interference they are. 
RICH

7182

General Mach Discussion / Re: "Capacitive" Encoder

« on: August 26, 2008, 05:11:03 PM »

Hey Overloaded,
Never did say what you were going to try it on. So what's the scoop so far?
RICH

7183

General Mach Discussion / Re: BobCAM generating unusable g code...

« on: August 25, 2008, 06:01:45 PM »

Chuff,
Chill out! Take a breath! If this is a hobby kind of thing for you then find..... joy....... in it.
Lazycam is not a joke, neither is MACH3, or a lot of other software thats around.
It probably took me 20  tries to get a cad file to import into Lazycam and export into MACH the proper code for cutting a handle for a model.  I also learned 20 different things about Lazycam and MACH which made the next one easy and enjoyable. So maybe walk before you run, do some reading, just play around, but most of all ......enjoy!
RICH

7184

General Mach Discussion / Re: Problem with cutting

« on: August 25, 2008, 05:19:39 PM »

northray,
Happy things are working for you.
I use two different pc's, a lap top 500MHZ and a 3 gig mhz pc and can say that when cutting circles or a shape on the lathe there is a difference in preformance especialy at a transition point or say  0,90,180,270 on the mill.
The faster pc just does the computing that much better. It is not a 10 fold increase but it's very noticible.
RICH

7185

General Mach Discussion / Re: How do I remove this out of the gcode

« on: August 25, 2008, 09:50:48 AM »

Davy,
One way to make editing a little easier is to open the file with Microsoft Word.
Then use EDIT>FIND>REPLACE Z******************x
                               REPLACE WITH (Z******************x)
                                check REPLACE ALL

RICH

7186

Show"N"Tell ( What you have made with your CNC machine.) / Re: GEAR CUTTING TOOL - POST#2

« on: August 24, 2008, 11:37:49 AM »

Just a silly answer to a possible question.
RICH

7187

Show"N"Tell ( What you have made with your CNC machine.) / Re: GEAR CUTTING TOOL - POST#2

« on: August 24, 2008, 11:03:03 AM »

But then I would need to get rid of the turkeys, all the feathers used for making motations, and wouldn't save on my electric bill. Not to mention the dried bark from the trees which it was noted on.
  RICH

Here is a sample from the spread sheet.

7188

Show"N"Tell ( What you have made with your CNC machine.) / GEAR CUTTING TOOL - POST#2

« on: August 24, 2008, 10:44:24 AM »

The following pictures show a brass test cutter and the tool steel cutter meshed into the teeth of a cut 20 tooth 48 pitch gear.
Also the basic dimenesions used in later setup. The last picture shows tempering of the gear cutter. Picture color is off some as it's just a nice
dark straw color. Dimensions for the gear came form a spread sheet I created. You can get away with using a end mill of close size to the
tooth radius ( depends on what you want) but I wanted to see what my engraving machine could via multiple profile passes.
RICH

7189

Show"N"Tell ( What you have made with your CNC machine.) / GEAR CUTTING TOOL

« on: August 24, 2008, 10:30:37 AM »

Attached pictures show one of a few gear cutters made on my engraving machine.The
gear was drawn in CAD and the g-code for the cutter generated via DXF export. The temper of the 1/4" tool blank was removed for cutting by a carbide die grinding tool.Then the bit was mounted in an adapter inside a R8 fixture allowing it to be rotated 10 deg to put a relief on the bit. After cutting of the profile it was hardened and tempered. A modified fly cutter holder allows for positioning the gear cutter face on the axis of the spindle. The gear cutting tool was measured / checked for dimensions and noted allowing for easy setup in the Atlas mill for later cutting of the teeth . You'll need to look my second post for additonal pictures of the cut gear and info.
RICH

7190

General Mach Discussion / Re: Offset tangential control?

« on: August 23, 2008, 06:07:36 AM »

Well thats certainly different and interesting. Looks like an optional way of cutting granite instead of the conventional large profile machine. I wounder how they plan on edging it? I would be bet it's done in a cam program specific to the machine.
RICH