Hi, anybody know how to get Blender to send STL files that are not

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Hi, anybody know how to get Blender to send STL files that are not micro sized in Repetier Host? I know I’m doing something wrong on blender but i can’t figure out the scale problem

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I’ve never used Blender, but I seem to remember a post that said Blender defaults to inches (hosts always read the numbers as millimeters). See if you can change the default measurement in Blender to millimeters.

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STL files have no specified units, only the program reading the file. When importing an STL file into Blender, Blender assumes meters by default. Repetier host (I’m guessing) assumes millimeters.

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ok but im transferring out of Blender as an STL, then opening it in Reptier, and in Blender no matter how big i scale it it shows up dinky in Reptier ?? I am sure i dont have the scale right in Blender, do you use Blender?

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I think what @Willie_Zenk is saying is that Blender uses meters by default, and all host software assumes millimeters.
If you draw something in Blender, it might be 100mm, but that is 0.1m. So, when it gets to the host, and the host sees “0.1” (there is no unit in the STL, just the number), it makes the object 0.1mm.
Find out how to set the measurement in blender to base on millimeters, rather than meters, and you’ll be fine. Otherwise, always scale up by 1000x in your host for the same result.

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yeah i always have to scale up, so i will investigate the millimeter thing, I am hunting for a blender guru to braindrain!

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yup. it’s scale thing. If you are using units “None” (default ones) remember that all dimensions are in millimetres. If you change to units “Metric” change “Scale” to 0.001

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I use Blender to export stls all the time. When I export an object from Blender that is 100x100 Blender units Slic3r, sorry I don’t use Repetier, opens the stl and it is 100mm x100mm. Perhaps there’s a setting in Repetier?

You can try explicitly defining (or UN-defining) the units in Blender by clicking the Scene button in the Properties header and clicking Metric in the Units pane. There is a field there for Scale. If the units are already set, either adjust the scale or click None for unspecified real-world size of Blender units and see how Repetier imports the stl.

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Thanks Roger, i am working it out by messing with the scale in repeater, but i need to refine the scale in blender as well, i will try some of your suggestions.