Object has wrong dimensions after export to STL (se photo)

[mare92_cool]

Hi!

I've been designing an object to 3D print using prusa slicer. In Fusion 360 the object has certain dimensions. But when I print the object it has bigger dimensions (se photo). I've tried to figure out why;

- Units are in mm as intended in fusion

- I did not alter the model in the slicer.

The STL is also i attatchments if that helps! 

Thankful for help!  

/Martin

[g-andresen]

Hi,

please share the f3d file

File > export > save as f3d on local drive > attach to post

günther

[mare92_cool]

It is now added as attachment

[emare62]

The stl is ok, at least in Bambu Studio keeps the original dimension 16.75mm

I had to cut the part to be able to measure it in the slicer, but I think it is a good way to show the dimensions in the slicer

[HughesTooling]

Are you sure your Vernier is zeroed?

[mare92_cool]

Well this is embarrassing... Turns out you are right!

I even measured the duplo part that this wrench is supposed to fit with this "unzeroed" caliper and designed the whole thing wrong...

And since I didn't do a parametric design I have to do this all over again. 

If this doesn't become a meme or turn up on reddit I'd me surprised. 
Thanks for the solution. Hope this amuses someone out there. 

[MRWakefield]

Good catch!! This leaves me a bit confused though. Obviously you can zero the caliper at any +ve value but this must have somehow been zeroed against something with a negative size. Or am I going mad?

[g-andresen]

Hi,

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@MRWakefield  schrieb:  Obviously you can zero the caliper at any +ve value but this must have somehow been zeroed against something with a negative size. 

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I would also like to have that explained to me.

Günther

[HughesTooling]

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@MRWakefield wrote:

Good catch!! This leaves me a bit confused though. Obviously you can zero the caliper at any +ve value but this must have somehow been zeroed against something with a negative size. Or am I going mad?

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I usually stick with Mitutoyo digital calipers but I have a couple of cheapo Moore and Wright ones and if the battery connection is not good they will sometimes jump to -5mm. Found I needed to bend the spring battery connector a bit and the problem goes away.

[MRWakefield]

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I usually stick with Mitutoyo digital calipers but I have a couple of cheapo Moore and Wright ones and if the battery connection is not good they will sometimes jump to -5mm. Found I needed to bend the spring battery connector a bit and the problem goes away.

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Yes, good point about the iffy battery connection I've seen random values come up as well in the past with cheaper or earlier generation digital instruments. It's a shame about M&W, it used to be the go-to if you go back 40 years or more.