Been lurking here a long time and have said little being a novice to all
things machining. Having said that, I have the HobbyCNC board as well and
the default settings appear to need tweaking for this board. I found that I
would always miss steps on rapid moves on all axes. My router plowed
through several pieces as a result of this.
Unfortunately, I have the unit torn down right now for a shop rework. Once
that is done, I intend to get this running properly and work through the
problem and not simply avoid rapids (I would edit all G0 moves to a G1). I
will report any successes/problems I have.
Brian
On 9/2/08, John Thornton <[EMAIL PROTECTED]> wrote:
>
> The timing to the board will not affect the boards performace or how the
> motors run.
> If the step timing is too fast the board might misses steps if the
> direction timing is
> too fast the board might miss a direction change. If this is the problem
> then increase
> the timing until those problems go away. The information on hobbycnc is
> sketchy at
> best. If you find a setting that is better please let me know and I'll
> update the wiki
> page. If it runs fine and changes direction fine but the motor is noisy at
> mid range
> that is the hobbycnc board doing that. Cheap drives have mid range
> resonance
> problems.
>
> Please explain what "a tad too harsh" means.
>
> John
>
> On 1 Sep 2008 at 19:38, Kim Mortensen wrote:
>
> > Hi All,
> >
> > Im new to this list, but have been directed here as some of you may
> > have answers to my question.
> >
> > Does anyone have experience with running EMC2 and HobbyCNC boards..
> > and have some settings they can recommend for driving the board
> > correctly.
> >
> > Currently I have the following settings in EMC:
> > Step Time: 2000
> > Step Space: 2000
> > Direction Hold: 2000
> > Direction Setup: 2000
> >
> > But it seems that the settings are a tad too harsh for the board.
> >
> > Best Regards
> > Kim Mortensen - Denmark.
> >
> >
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