Dxf

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Filardo
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Re: Dxf

Post by Filardo »

suntravel wrote: Tue Jun 06, 2023 11:37 am Sure, here are two files easy to import in AcornCNC

Uwe
Merci beaucoup je vais voir ça
Filardo
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Re: Dxf

Post by Filardo »

suntravel wrote: Tue Jun 06, 2023 11:37 am Sure, here are two files easy to import in AcornCNC

Uwe
Vielen Dank für das DXF-Konto. Es funktioniert nicht. Ich denke, ich werde eine Neuinstallation wiederholen, wenn es nicht meine ist
Attachments
dxfcomplet-guitare.zip
(15.33 KiB) Downloaded 16 times
suntravel
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Re: Dxf

Post by suntravel »

no problem to import...

made it only for engrave in 10s, but with contur, drill ect. will work also.

Uwe
Attachments
guitar03.png
guitar02.png
guitar01.png
Guitar.cnc
(47.97 KiB) Downloaded 15 times
suntravel
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Re: Dxf

Post by suntravel »

I loaded the DXF in AutoCad, not a good design for milling, lots of double lines, and causes for branchpoints, to make generate milling the contour more user intensive in the import.

Best strategy is to make layers in CAD for each toolpath and import them for each tool as a single DXF, except for independent things like centerlines for boring.

Anyway a complete body of a guitar would be faster to make with fusion360 or other CAM than simple 2D DXF import in Acorn.

Uwe
Attachments
guitar04.jpg
Filardo
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Re: Dxf

Post by Filardo »

Oui je sais j'ai quelques problème avec les calques inkscape celui là n'es pas valable mais je savais qu'il passe dans cnc12
Mais maintenant plus rien passe même votre dxf ne passe pas
J'ai image mais impossible de sélectionner un contour
suntravel
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Re: Dxf

Post by suntravel »

Keep in mind if you do a DXF for CNC, draw only what you need for the toolpaths, keep it simple and effective.

Uwe
Filardo
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Re: Dxf

Post by Filardo »

Oui c'est le cas
Filardo
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Re: Dxf

Post by Filardo »

Je trouve que cela est plus simple avec l'intercom quand les dxf sont bien fait bien sur
Last edited by Filardo on Wed Jun 07, 2023 1:07 am, edited 1 time in total.
Filardo
Posts: 216
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Re: Dxf

Post by Filardo »

A chaque fois avec fusion j'ai des surprises sur usinage des décalage
En z x et y
Intercom au moins ont comprends tout de suite la programmation et nos choix dans les paramètres
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Re: Dxf

Post by cnckeith »

https://sendcutsend.com/blog/how-to-pre ... sing-qcad/

and from the Intercon Plasma Manual. dxf prep advice.

Before importing a DXF it is good practice to review the vector file. Just because a vector file
looks ok on the screen doesn’t mean it is ready or good to cut.
Common DXF pitfalls are:
- Duplicate Lines and Arcs. These are lines and arcs that are identical and drawn on top of each other.
They do not show up when looking at the cad file in a cad system but if they are there Plasma Intercon
will see them and try and use them. Solution: Most all CAD systems have a “Delete Duplicate”
function which cleans up the cad drawing by deleting any duplicate entities (lines and arcs).
- Endpoint over-run or gaps: Lines or Arcs don’t end at the same start point of the next line. This could
be a gap or over-run. Solution: Most CAD systems and drawing program have tools to automatically
join line and arcs endpoints so they start and end on the same point. Clean up the CAD file in this way
before importing into Plasma Intercon for the best results. Plasma Intercon has a Vector gap tolerence
setting as well. Plasma Intercon will automatically join vector endpoints that are within this distance
tolerance setting.
- Hidden Lines and arcs. Lines and Arcs that may not show up in the CAD program may be because of
color or a line thickness of zero. Will show up in Plasma Intercon. Solution: Make all lines and arcs the
same color and thickness.
- Hidden layers, multiple layers. Sometimes hidden layers or multiple layers will cause an issue. Put
all geometry (lines and arcs) on one Layer and delete all other layers.
- Fonts don’t work. When creating text in the CAD system most systems will use any of the Windows
installed fonts so you can easily size and place the text you want. Solution: The last step before saving
the CAD file in preparation for importation into Plasma Intercon is to convert all text into lines and arcs
in the CAD system. Typically in the CAD system there is a feature called “Convert (fonts) to Outlines”
or in Qcad is called “Explode”
- To many nodes. A common problem with art related SVG’s and DXF’s is the vectors that make up
the art are very very short vectors (for example .001” long lines) sometimes there are thousands and
thousands of ‘nodes’ (aka endpoints) this is commonly a result of scanning and using CAD tools to
convert a photo (bitmap image .bmp, .jpg, .png, etc) to vectors. Centroid CNC12 is very good at
running a short vector plasma part program at smooth speeds when using its “Plasma Smoothing”
feature. That being said it is always good practice to not have super short vectors. There are
diminishing returns involved, having super short vectors is unnessary and at some point will start to
\documents\plasma_intercon\plasma_intercon_manual.odt Page 32
degrade the cut performance. Good rule of thumb is to not have any vectors shorter than .01”. When
tracing a bitmap with software tools don’t just crank up the resolution as that will create a file with very
short vectors. Only increase the tracing resolution settings to the point that a satisfactory trace is
made. If you are working with a tracing DXF/SVG file created by someone else and you are not the
one tracing it you can still optomize it as most CAD systems and Art programs (inkscape and illustrator)
have optomization tools that will reduce the number of lines and arcs that make up the file by fitting
longer lines and acrs through all the short vectors that closely matches the geometry.
- Drawing is using fill or width parameters. CAD file looks fine in the CAD/Graphics program but looks
completely different in Plasma Intercon. Commonly found in graphics programs are fill and vector width
values that are used to define a shape. Solution: Use the tools in the CAD/Graphics program to
export/save as only vectors. In illustrator use “Convert to Outlines” to convert shapes to lines and
arcs.
Need support? READ THIS POST first. http://centroidcncforum.com/viewtopic.php?f=60&t=1043
All Acorn Documentation is located here: viewtopic.php?f=60&t=3397
Answers to common questions: viewforum.php?f=63
and here viewforum.php?f=61
Gear we use but don't sell. https://www.centroidcnc.com/centroid_di ... _gear.html
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