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Anonymous
1116 Vistas, 7 Respuestas

DXF file too big

I've got Autocad LT for mac.

I've got a laser cutter that requires DXF files.

I drew up a very simple object using dynamic input - all squares - that measured 147mm x 88mm. 

I saved as a DXF.

I tried opening this file in my Laser cutter software and got the message ' File too big dimensions : 17812.04mm x 12772.52'

Can someone shed any light on what is happening?

Does anyone know if Autocad is a suitable application for drawing up files for a laser cutter, or should I bin it in favour of something else?

This is trial software for 30 days. Support and tutorials seem non-existent so unless things start making sense soon. I won't be buying.

 

Thanks 

pendean
en respuesta a: Anonymous

DXF files are uncompressed "TEXT" files of your drawing: open one in your preferred word processor and read it. Imagine, every item in your file written out as a text file.

But physical sizing from dwg (or whaever you used) to dxf is not created as part of the translation process, it usually means your DWG file existed in that size to start with. Post your source file, let's all have a look for ourselves to confirm.

BTW: no one here is "autodesk", so the threat of not buying means nothing to anyone around here trying to help you out. We are all end customers.
john.vellek
en respuesta a: Anonymous

Hi @Anonymous,

 

I see that you are visiting as a new member to the AutoCAD for Mac forum. Welcome to the Autodesk Community!

 

It sounds as if your UNITS is off by a some factor.  Can you attach your file for me to examine? If it is indeed correctly set up then perhaps there is some sort of scaling when you bring it into your other software. If this is the case, then perhaps you need to scale your drawing objects down by that factor.

 

I am happy to look at this for you as soon as possible so you have more time to flex your Trial license.

 

 

Please select the Accept as Solution button if my post solves your issue or answers your question.


John Vellek


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Anonymous
en respuesta a: john.vellek

Hi John

Thank you for your reply.

I've attached my drawing for you to look at.

I tried to measure it myself to see if my scale was out, but my knowledge of AC is so non-existent that I couldn't even figure out how to do this.

I did enter correct values in the initial dynamic input  box (but how do you check them?).

I'm struggling with tutorials as nothing I can find relates to the program version I am running.

Also I am a mac user ( a production designer for film and TV) and conform exactly to the Mac stereotype of an art based, intuitive, logical user.

Personally I'm finding that  AC's PC/windows based system conforms to none of the above. 

I like to draw and use a large Cintiq pen to screen set up - perhaps this isn't ideal for AC?

Anyway, the learning curve is steep for me so any insight you can offer would be very welcome and most appreciated.

 

Many thanks

 

Andy

maxim_k
en respuesta a: Anonymous

Hi Andy,

 

I opened your DXF file and measured bottom left rectangle:

 

Command:  DIST
Specify first point:
Specify second point or [Multiple points]:
Distance = 147.0000,  Angle in XY Plane = 0,  Angle from XY Plane = 0
Delta X = 147.0000,  Delta Y = 0.0000,   Delta Z = 0.0000
Command:  DIST
Specify first point:
Specify second point or [Multiple points]:
Distance = 88.0000,  Angle in XY Plane = 90,  Angle from XY Plane = 0
Delta X = 0.0000,  Delta Y = 88.0000,   Delta Z = 0.0000
Command:

 

you see, that dimensions are correct: 147 x 88 units (mm in your case).

2017-08-12_22-59-43.png

 

 

 

Maxim


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john.vellek
en respuesta a: Anonymous

Hi @Anonymous,

 

Thanks for the file.  I, like Maxim, opened the file and it measures fine. So Kudos to you for using Dynamic Input and getting the corners of your polyline in the correct spots.

 

I have included a quick video of how I checked the size. I use both the distance command and also Dimensions to show the size.

 

So, tell me please, if you erase everything except the one bottom left triangle and bring into your cutting application, does it still report a different size? If so, what size does it show? I wonder if there are settings for the cutting bed that are coming into play here.

 

Without knowing exactly what you are cutting, I suggest that you might also investigate Fusion 360  for this process.

 

 


John Vellek


Join the Autodesk Customer Council - Interact with developers, provide feedback on current and future software releases, and beta test the latest software!

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john.vellek
en respuesta a: Anonymous

Hi @Anonymous,

 

I am checking back to see if my post or others helped you with your problem. Please add a post with how you decide to proceed and your results so other Community members may benefit.

 

 

 

Please hit the Accept as Solution button if a post or posts solves your issue or answers your question.


John Vellek


Join the Autodesk Customer Council - Interact with developers, provide feedback on current and future software releases, and beta test the latest software!

Autodesk Knowledge Network | Autodesk Account | Product Feedback
Anonymous
en respuesta a: john.vellek

Hi John

Many thanks to you and the other forum members for your advice and instruction on how to get to grips with AC.

I can see this forum is an invaluable source of information, support and sharing for the community at large.

Personally AC isn't the drawing package for me and I have decided to ditch it.

I have however looked into Fusion 360 and think this could well be the way forward for me.

Many thanks once again

 

Andy