SoliForum - 3D Printing Community — STL way too small in Repetier Host

Re: STL way too small in Repetier Host

null@example.com (junkmail.for.ive) — Sat, 12 Jul 2014 11:31:33 +0000

Hi,

I had the same scaling issue...(The imported STL file was 1/10th of the actual size).
You can check the size of your imported item in RH by using the 'Object Information' button (its the 'i' icon that you can see above the part list)
I rescaled by a factor 10 and presto ;-)
Cheers!

Re: STL way too small in Repetier Host

null@example.com (EvilPrinter) — Fri, 06 Dec 2013 06:25:49 +0000

Hey, did I tell you that I love you guys...?

Re: STL way too small in Repetier Host

null@example.com (elmoret) — Fri, 06 Dec 2013 06:20:45 +0000

1 inch = 25.4mm.

Re: STL way too small in Repetier Host

null@example.com (EvilPrinter) — Fri, 06 Dec 2013 06:06:58 +0000

I don't know how to check the calibration... and what's a micrometer? Question, how did you come up with the 25.4 scale bit? That seems to be nearest to the right scale just eyeballing it... God I wish this weren't such a difficult situation.. I think the problem lies with Blender.. Netfabb says the file is too small when I try to upload in mm, and when I load it into RH it also appears to be incredibly small until scaled up.. Thanks alot blender... Anyway, I'm curious, how did you come up with that 25.4 XXX bit ronsii?

Re: STL way too small in Repetier Host

null@example.com (ronsii) — Thu, 05 Dec 2013 09:22:21 +0000

Have you checked calibration on the SD printer itself just using a hand g coded file and a micrometer?

the blender export thing is kinda fake... as it just applies a multiplier in the file not much different than putting the multiplier in RH

Re: STL way too small in Repetier Host

null@example.com (EvilPrinter) — Thu, 05 Dec 2013 08:38:20 +0000

Problem is, I can't be sure that what I'm about to print is the right size.. I did some printing, then whipped out my tape measurer and think I'm getting a print that's a bit small.. Blender actually does have a metric option to my surprise.. I used it to scale my android up to the right physical dimensions. My problem is when I import it into RH I can't ensure that the print will indeed be the proper scale. Netfabb's online conversion isn't helping either... I'm going to try to generate G-Code of the repaired STL from Netfabb (inches) in Skeinforge, and see if I can get RH to give me the metrics I'm looking for. (FYI, I'm building an android about 5 1/2 ft. tall, similar to inMoov and all the pieces must fit together as I'm creating a mold to give the android rubber silicone skin.

Re: STL way too small in Repetier Host

null@example.com (ronsii) — Thu, 05 Dec 2013 08:19:13 +0000

Blender does not deal in inches/metric/photon/etc... it deals in BU's which are Blender Units you can call them anything you want but like most 3d/cad programs around they have a mind of their own when it comes to scaling and it is far simpler to just do the scale fix at the end... once.

Re: STL way too small in Repetier Host

null@example.com (EvilPrinter) — Thu, 05 Dec 2013 06:51:47 +0000

I'm getting a problem when I try to use NetFabb's online conversion tool (using it because the app seems buggy with exports). It only let's me upload with the "inches" option selected. If I select 'mm' I get an e-mail telling me that the file is too small and I'm sure that it's not... I don't know how to export in MM from blender. I just have it set to "metric" as I assumed RH would be able to figure it out in those terms. I tried the 25.4 x 25.4 x 25.4 and that seems to work, but for the future, I would like to be able to just upload the file without screwing with scaling. Thanks everyone for the assistance!

Re: STL way too small in Repetier Host

null@example.com (EvilPrinter) — Thu, 05 Dec 2013 03:50:30 +0000

Ok thanks guys, I'll do that!

Re: STL way too small in Repetier Host

null@example.com (IronMan) — Wed, 04 Dec 2013 11:18:58 +0000

Try exporting in mm from Blender; not cm...

Re: STL way too small in Repetier Host

null@example.com (2n2r5) — Wed, 04 Dec 2013 05:51:21 +0000

elmoret wrote:

There are many metric units. RH expects millimeters.

+1 try scaling by 100 or 1000

Re: STL way too small in Repetier Host

null@example.com (elmoret) — Wed, 04 Dec 2013 05:07:20 +0000

There are many metric units. RH expects millimeters.

Re: STL way too small in Repetier Host

null@example.com (ronsii) — Wed, 04 Dec 2013 05:01:54 +0000

usually just go to the 'object placement' tab in RH and in the 'scale' fields put a 25.4 in each X,Y and Z positions.

of course you have to have that object selected in the list.

STL way too small in Repetier Host

null@example.com (EvilPrinter) — Wed, 04 Dec 2013 04:54:49 +0000

I am trying to print something that needs to be EXACTLY the same size as the exported Blender .STL -- I made sure that I exported it in METRIC and measured it in blender to fit perfectly within the build volume of my Solidoodle 2. When I load the .STL after NetFabb repair, it's EXTREMELY SMALL (other STL's from Thingiverse have the same problem) and I have to use the scale function to even be able to see it. I've heard other people have the same problem but can't seem to locate a solution. I imagine that if I export a file that is "12.7cm x 12.7cm x 12.7cm" from Blender, that I should be able to print it in the same exact dimensions without having to rigidly scale it up to an approximated size. Please help!