topic Re: Object has wrong dimensions after export to STL (se photo) in Fusion Support Forum

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

mare92_cool — Fri, 28 Jun 2024 10:28:28 GMT

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

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

g-andresen — Fri, 28 Jun 2024 09:55:58 GMT

Hi,

please share the f3d file

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

günther

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

mare92_cool — Fri, 28 Jun 2024 10:28:46 GMT

It is now added as attachment

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

emare62 — Fri, 28 Jun 2024 12:18:20 GMT

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

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

HughesTooling — Fri, 28 Jun 2024 13:46:22 GMT

Are you sure your Vernier is zeroed?

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

mare92_cool — Fri, 28 Jun 2024 13:59:38 GMT

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.

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

MRWakefield — Fri, 28 Jun 2024 21:27:13 GMT

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?

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

g-andresen — Fri, 28 Jun 2024 22:00:59 GMT

Hi,

@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.

I would also like to have that explained to me.

Günther

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

HughesTooling — Sat, 29 Jun 2024 09:31:57 GMT

@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?

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.

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

MRWakefield — Sat, 29 Jun 2024 10:38:36 GMT

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.

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.