I'm very new to Mach3, and am hesitant to post on your topic, as I'm by no means a knowledgeable Mach3 user.
However... I know a few things about steppers, and some of your posts seem to present conflicting information.
You cannot be half stepping if you are doing Wave Drive. Those are somewhat mutually exlusive terms.
Full stepping uses phases 1, 3, 5, 7.
Wave Drive uses phases 2, 4, 6, 8.
Half stepping uses phases 1, 2, 3, 4, 5, 6, 7, 8.... in fact it's a combination of Full Stepping and Wave Drive that produces half-stepping.
So... if you've got something that says it is Wave Drive, you are still "full stepping" in that it moves one full step increment per phase change.
The difference between Full Stepping and Wave Drive is that Full stepping powers both A and B phases at once, whereas Wave Drive powers only 1 of the phases at a time.
Look at page 3 of the following document.
http://www.solarbotics.net/library/pdflib/pdf/motorbas.pdfI'm sure I didn't post that link properly (I'm in Quick Reply) but just cut and paste...
Also... this page has a pretty good representation of the differences between, Full, Wave, and Half stepping.
http://www.doc.ic.ac.uk/~ih/doc/stepper/control2/sequence.htmlFinally... here's a pretty good little "Stepper Fundamentals" tutorial (from StMicroelectronics) on the Digikey web-site.
http://dkc1.digikey.com/us/en/tod/STMicroelectronics/StepperFundamentals/Stepper_Fundamentals.htmlHope some of the above helps.
Best regards,
Michael