Can not get object to print mm to inches problem?

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Glenn 28
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Can not get object to print mm to inches problem?

Post by Glenn 28 »

I am very new to this but I have made many things with my Rostock using Google Sketchup with very little problems. This one piece will not slice up and print right it is like it is in the wrong units. I have exported STL file in both mm and inches and the print lasts for a few seconds. Any ideas? The object was made in inches and I changed the settings in the software that said imported files are in inches. I have very limited software just the free stuff I have attached the file anyone would like to try and print.
Attachments
perfect coupler.stl
Simple little thing to print
(103.7 KiB) Downloaded 152 times
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Eaglezsoar
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Re: Can not get object to print mm to inches problem?

Post by Eaglezsoar »

Glenn 28 wrote:I am very new to this but I have made many things with my Rostock using Google Sketchup with very little problems. This one piece will not slice up and print right it is like it is in the wrong units. I have exported STL file in both mm and inches and the print lasts for a few seconds. Any ideas? The object was made in inches and I changed the settings in the software that said imported files are in inches. I have very limited software just the free stuff I have attached the file anyone would like to try and print.
When I load the file into Netfabb it shows the part is less than a mm tall and wide. The scaling is all wacked. Apparently when you rescaled from inches to
mm the scaling was created way to small. It can be rescaled in Netfabb but you need to know what the scale for that part is supposed to be.
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Glenn 28
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Re: Can not get object to print mm to inches problem?

Post by Glenn 28 »

The object instead of being LxWxH .86" x .86" x .85" it always makes it mm. To get the slope just right in Google Sketch up I had to use the scale tool. When I dimension the object in sketchup it looks right. I wonder if the scale tool wacks the scaling for the STL file. Maybe sketchup bug?

Thanks for looking at the part.
Glenn 28
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Re: Can not get object to print mm to inches problem?

Post by Glenn 28 »

I can now open the file in Netfabb and the units look right (inches). I then go and print and still it thinks it is in mm. I look at the Gcode and it has it set to mm. Here is the modified file if any one would like to try. Thanks to all.
Attachments
perfect coupler2.stl
Second try
(23.52 KiB) Downloaded 162 times
Glenn 28
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Re: Can not get object to print mm to inches problem?

Post by Glenn 28 »

Solved: I opened in Netfabb and it said that I a some flipped triangles.? I repaired the triangles and it worked. I don't know but I am happy now.
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DavidF
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Re: Can not get object to print mm to inches problem?

Post by DavidF »

I just dropped it into cura and scaled it with no problems.....should I try printing it??
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Glenn 28
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Re: Can not get object to print mm to inches problem?

Post by Glenn 28 »

Sure. I just printed one in Pla. Like I said earlier I am very new to this so I do not have much experience with the different plastics. I am going to try one out of ABS to see if the finish is smoother. I have the printer settings set to the calibration cube settings not sure if those are the best for the job. Thanks much for looking and scaling.
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