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Excellent work Randall.

This is a great resource.

Greg

Russ

I tried a simple file with Dana's PP and this is just a small section from it,

M5,,-0.3656,0.9500,-54.1241
if 0.9500 > 0 then &AngularFeedRate=(180*0.6)/(3.14159*0.9500)
if...

"It doesn't matter if the motion is encoded in gcode, sbp code, or hieroglyphics the math is the same"

I use gcode and Mach3 as my controller.

Mach3 has motor tuning parameters for each...

You are right there is NO standard as to which end is the drive or headstock.

But there IS a standard as to the direction of rotation.

The right hand rule concisely describes this standard...

By convention the rotary axis direction of rotation should follow the right hand rule.

To correct for this use this line,

ROTARY_WRAP_X = "-"

Greg


2898

That is interesting info Russ

I have insufficient knowledge of the shopbot code to either agree or disagree with your assessment. I use gcode.

The PP in question is one that Randall (a...

I have written an Aspire wrapping PP for those shopbots who have their rotary axis parallel with the X

It is based on the wrapping PP that is provided with Aspire that Randall wrote.

It...

"Jack, that is the most informative I have seen. Thanks and I will have to study it. Hope I can retain it!!!!!"

There is another thread with a few examples of wrapping models multiple times,
...

The majority of work holding devices you have ever seen used on a wood lathe will work on a rotary axis.

Greg

It is often confusing when trying to describe the correct rotation direction of a rotary axis.

To say "positive degrees will be clockwise when looking from the headstock to the tailstock"...

Thought I would go one step further and try something extra today.

Along the lines of a coffee table leg. They seem to be popular.


All done in Aspire

Clip art set into the square...

"This "CNCWrapper" is that the same program as "Wrapper" by Andrew Emmans?"

Yes one and the same. Version 2 Does just what version 1 did, but quicker.

Toolpaths in Aspire. CNCWrapper...

I see there have been some examples of rotary work posted on the forum that are not actually done on a shopbot, so I thought I would post this one.

Modelled in Aspire. Toolpaths wrapped with...

Many users swear by Inkscape for bitmap tracing. Being free it certainly fits your cost factor concerns.

You mention that your motivation is to do some detailed vcarving.

With that in mind...

Steve Knight wrote,
"myself I was going to go with such a laser but I wonder about accuracy"

These cheap cross lasers permanently fixed are great but if you're after high accuracy then look...

Gerard "you get what you pay for" is right about most things but here is an exception.

Autocad Lite (2D version) is quite expensive but has a FREE lookalike.

Progecad Smart is well worth a...

Neville got it the same place as I did.

http://www.dealextreme.com/details.dx/sku.5942

This one projects a fairly fine line, they do not all do that.

For less than five bucks it may be...