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Inner Toolings Clipping problem
January 11, 2018 - 2:00 pm
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Hello Ness,

Thanks a lot for the reply. Yes, I changed the settings in the post processor and the groove toolpaths are being generated.

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January 11, 2018 - 7:06 am
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Hi Rafal,

I have talked to the developers about your question and here is their answer:


1- The grooving by milling is handled by the NC_Hops Post_Processor,
(cf. below example), so perhaps he simply has a setting issue.

2- An alternative solution to the straighforward inner tooling would be
to use a single panel fitting including a shape (instead of a groove),
since this should allow an open ended machining.

3- The “PolyBoard Macro” mode is specific, and assumes that there is
already an existing macro (otherwise we recommend not to use it).


Grooving by milling example

In the attached “Hops_Groove” cabinet, the Sides are grooved by the Back.

The 2 “Left_Side_…” HOP files correspond to the NC_Hops export by milling
(with the below settings) and by sawing.

With the selected values (Milling tool 4 mm, Overlap 0.5 mm), the grooving
requires 6 passes which are clearly shown in the HOP file (while the sawing
is described by a single line).

pp-options.pngImage Enlarger

pp-code.pngImage Enlarger

If you need more help, I’ll ask the developers to contact you directly.

Hope this is helpful,


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January 9, 2018 - 11:40 am
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Hi Ness,

Thanks for the answer. It works although there are many cases where I would like to make a groove with milling method instead of sawing. The problem with milling is that while it works with Inner Tooling, it is not being generated upon post processing grooves (I checked .hop file and nothing has been generated except drillings).

In general, in groove milling mode (Post-Processor Properties > Groove > Mode > Milling) even when I create connection between panels as a groove (for example: side overpassing the back and has groove), the groove toolpaths are not being generated in the .hop file (you can  check it with notepad). I tried to change Post-Processor Properties > HOP > Mode > Standard Version to Polyboard Macros – it generates the groove toolpaths for milling grooves but it is using operation names that Holzer´s software can´t understand:

For example drilling operation syntax in Standard Verion is:

BOHRUNG (8,161,5,-16,20,0,0,0,0,0,0,0) – This works.

Polyboard Macros driling operation looks like this:

CALL PB_VDrill ( VAL X:=8,Y:=161,DEPTH:=-16,D:=5,TOOLID:=501) – Our Holzher software can´t recognize it as an operation

My question is: is it possible to use Polyboard Macros Mode but to modify it somehow so that it would generate a correct syntax that our machines would understand? Or is there any other solution for making grooves (not with inner tooling – it works) with milling method?


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January 9, 2018 - 9:36 am
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Hi Rafal,

You should use a “single panel fitting” rather than an inner tooling.

This enables Polyboard to define the machining as a groove and not a pocket.

To do this, first set up a groove in the single panel fittings library:

single-panel-fitting-set-up.pngImage Enlarger

Then use the “structures” menu to apply the single panel fitting groove.

single-panel-fitting.pngImage Enlarger

This will create the groove in Polyboard :

3d-groove.pngImage Enlarger

In the post processor set up create a “through groove” machining over lap:

pp-settings.pngImage Enlarger

best regards,


January 9, 2018 - 7:15 am
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Hello all.

I am having a problem with inner tooling clipping at the edge of the part. (see picture 1)1.JPGImage Enlarger

The goal is to make a pocket in the panel for the electrical cables (see picture 2)2.JPGImage Enlarger

but when I post process the cabinet, the tool path for this pocket ends at the edge, since milling tool is obviously round it will not create an open ended pocket. Does anyone know how to make the post processor generate the toolpath that extends outside the part? I am using Holzer Direkt NC-HOPS post processor.

Thanks in advance!


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