Servo electronic threading

**MuellerNick** · 31st August 2012, 05:26 PM

Nick, this is not a fundamental problem, it all has been solved long ago for industrial grade CNC by throwing money at it.

I knew the ELS-project even before it worked,
You don't have to throw money at that problem, brain cells are way more appropriate.
Did you real the link? The algorithm is fast, as it doesn't need any floating point, so there are no rounding problems.

Nick

**cba_melbourne** · 31st August 2012, 07:18 PM

I think John Dammeyer is well aware of the Bresenham algorithm and has been using it for his ELS code. There are limits to what brain cells alone can do. But is it not fascinating, how difficult it is to replace something as plain and simple as old fashioned thread cutting gears in a lathe?

**RayG** · 31st August 2012, 07:34 PM

Hi Nick,

I think it would be a nice upgrade to that ELS kit to re-design it to use a dspic (which of course has on chip quadrature encoder interface)..

Do you know if anyone has done it already?

Regards
Ray

**localele** · 31st August 2012, 07:40 PM

You guys are losing me with all the terminology but here is the logical conclusion.Made in Taiwan.

cyclematic toolroom lathe 工具車床、小型車床、精密車床、工具車床韻光機械

**MuellerNick** · 31st August 2012, 11:21 PM

I think it would be a nice upgrade to that ELS kit to re-design it to use a dspic

I have no clue how the software is implemented. I just wanted to say that there is a clever way to solve that specific problem. Clever vs. brute force.

I have been a professional software developer for about 20 years. And micro-controllers are damned fascinating!

Nick

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