Can Creo 4.0 save parts, assemblies and drawings that can be opened in Creo 3.0?

[NormanHadley]

Sorry if this question has been answered already - I can't find a relevant thread. There's an earlier thread advising users saving from 3.0 to open in 2.0 that they could back-transfer the readnewermodels.dll file. I tried that but it seemed to make no difference on my setup - the Creo 3.0 M140 box wouldn't touch any files saved from Creo 4.0 M030.

Does anyone know of a more elegant way of making backward compatibility happen? Or, failing that, an inelegant method that works would be good too.

[BenLoosli]

Readnewermodels.dll or GCRI is version dependent. You will need the version for Creo 3 that reads Creo 4 files.

However, PTC may not have one out yet and the web page for the download comes back with a 404 error, page not found.

[MartinHanak]

Hi,

I hope that Readnewermodels.dll is available in Creo 4.0 installation. It can be copied to Creo 3.0 installation. This step enables Creo 3.0 to open Creo 4.0 models.

[NormanHadley]

Hi Martin. It should work in theory but not, alas, for me. I wonder if anyone else has had more success.

[MartinHanak]

Hi,

on my computer readnewermodels.dll is located in E:\PTC\Creo4_M030\Creo 4.0\M030\Common Files\x86e_win64\gcri directory

I copied the file into E:\PTC\Creo3_M140\Creo 3.0\M140\Common Files\x86e_win64\obj directory as described in https://www.ptc.com/en/support/article?n=CS34964

I started Creo3 M140 and opened Creo 4.0 part successfully

[NormanHadley]

Brilliant, thanks Martin. I had been pasting the dll into the ../x86e_win64/gcri of the Creo 3.0 installation as per my link upthread. However your method of putting it in ../x86e_win64/obj works much better. I can now read Creo 4.0 parts and assemblies. Not drawings but I don't think that's possible at all, right?

[MartinHanak · Accepted solution]

Hi,

you are right, only parts and assemblies can be opened.

[NormanHadley]

Cheers Martin, that's a really satifying outcome. We can send drawings as PDF anyway.

[NormanHadley]

Hi Ben. Yes, I wondered about that. The cut of readnewermodels.dll I transfered from the Creo 4.0 folder is datestamped  26th July 2017 with a size of 33,612,800 bytes but I have no way of knowing which earlier version it is tailored for.