# Difference in results creo vs PPM **URL:** \ **Category:** General Questions\ **Created:** [October 15, 2024, 5:05pm UTC](https://prepomax.discourse.group/t/difference-in-results-creo-vs-ppm/2085 "2024-10-15T17:05:56Z")\ **Posts on this page:** 15\ **Page:** 2
**Author:** ![Michal](https://avatars.discourse-cdn.com/v4/letter/m/34f0e0/32.png) [@Michal](https://prepomax.discourse.group/u/Michal)\ **Post date:** [October 16, 2024, 11:38am UTC](https://prepomax.discourse.group/t/difference-in-results-creo-vs-ppm/2085/21 "2024-10-16T11:38:05Z")
![image](https://global.discourse-cdn.com/free1/uploads/prepomax/original/2X/f/fb166f2f9e76cb056f75919c6292645d58860148.png) ---
**Author:** ![Michal](https://avatars.discourse-cdn.com/v4/letter/m/34f0e0/32.png) [@Michal](https://prepomax.discourse.group/u/Michal)\ **Post date:** [October 16, 2024, 11:39am UTC](https://prepomax.discourse.group/t/difference-in-results-creo-vs-ppm/2085/22 "2024-10-16T11:39:08Z")
![image](https://global.discourse-cdn.com/free1/uploads/prepomax/original/2X/0/0ca9acf54c59f4533fa2703405cd363b1840555b.png) ---
**Author:** ![ANYS](https://yyz2.discourse-cdn.com/free1/user_avatar/prepomax.discourse.group/anys/32/7737_2.png) [@ANYS](https://prepomax.discourse.group/u/ANYS)\ **Post date:** [October 16, 2024, 11:55am UTC](https://prepomax.discourse.group/t/difference-in-results-creo-vs-ppm/2085/23 "2024-10-16T11:55:14Z")
Is that offset shown in Creo (2760 mm) measured from the surface, the origin, the CM,… @Matej I have add a new reference point in Prepomax at (0,0,0). Why is the coordinate system symbol shown below? ![imagen](https://global.discourse-cdn.com/free1/uploads/prepomax/original/2X/1/1fa9f09ef447dadcc297d1a8cbd235ca940c7f19.png) ---
**Author:** ![Michal](https://avatars.discourse-cdn.com/v4/letter/m/34f0e0/32.png) [@Michal](https://prepomax.discourse.group/u/Michal)\ **Post date:** [October 16, 2024, 11:57am UTC](https://prepomax.discourse.group/t/difference-in-results-creo-vs-ppm/2085/24 "2024-10-16T11:57:38Z")
it is offset from 0,0,0 origin coordinate system (coordinate system the same as in prepomax) green surface serves as normal to give offset direction) ---
**Author:** ![Michal](https://avatars.discourse-cdn.com/v4/letter/m/34f0e0/32.png) [@Michal](https://prepomax.discourse.group/u/Michal)\ **Post date:** [October 16, 2024, 11:59am UTC](https://prepomax.discourse.group/t/difference-in-results-creo-vs-ppm/2085/25 "2024-10-16T11:59:00Z")
the best option would be to check in ansys or abaqus ---
**Author:** ![FEAnalyst](https://yyz2.discourse-cdn.com/free1/user_avatar/prepomax.discourse.group/feanalyst/32/688_2.png) [@FEAnalyst](https://prepomax.discourse.group/u/FEAnalyst)\ **Post date:** [October 16, 2024, 12:17pm UTC](https://prepomax.discourse.group/t/difference-in-results-creo-vs-ppm/2085/26 "2024-10-16T12:17:09Z")
The same model (mesh and everything - only removed the differences in syntax but otherwise it was the same .inp file) solved in Abaqus: ![bracket abq](https://global.discourse-cdn.com/free1/uploads/prepomax/original/2X/6/6d7ddf92d66252686272a956ba745770ed1d8263.png) ---
**Author:** ![Michal](https://avatars.discourse-cdn.com/v4/letter/m/34f0e0/32.png) [@Michal](https://prepomax.discourse.group/u/Michal)\ **Post date:** [October 16, 2024, 12:25pm UTC](https://prepomax.discourse.group/t/difference-in-results-creo-vs-ppm/2085/27 "2024-10-16T12:25:27Z")
can you rescale graph to 15 segments lower value 24 MPa and top value 360 as it was in ppm ? ---
**Author:** ![ANYS](https://yyz2.discourse-cdn.com/free1/user_avatar/prepomax.discourse.group/anys/32/7737_2.png) [@ANYS](https://prepomax.discourse.group/u/ANYS)\ **Post date:** [October 16, 2024, 12:30pm UTC](https://prepomax.discourse.group/t/difference-in-results-creo-vs-ppm/2085/28 "2024-10-16T12:30:22Z")
Sorry. Seems that symbol was not the origin but the bounbing Box centre. ![imagen](https://global.discourse-cdn.com/free1/uploads/prepomax/original/2X/c/c6d168a50f26a358eb0f15fc6c42293802488e63.jpeg) ---
**Author:** ![Michal](https://avatars.discourse-cdn.com/v4/letter/m/34f0e0/32.png) [@Michal](https://prepomax.discourse.group/u/Michal)\ **Post date:** [October 16, 2024, 1:27pm UTC](https://prepomax.discourse.group/t/difference-in-results-creo-vs-ppm/2085/29 "2024-10-16T13:27:15Z")
if you have time would be nice to recreate model in abaqus ( non only import/export data between PPM and Abaqus) since now I really do not know if results are good for ppm or from Creo difference is quite significant . best regards ---
**Author:** ![Matej](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@Matej](https://prepomax.discourse.group/u/Matej)\ **Post date:** [October 16, 2024, 1:47pm UTC](https://prepomax.discourse.group/t/difference-in-results-creo-vs-ppm/2085/30 "2024-10-16T13:47:59Z")
> [@ANYS](#): > > I have add a new reference point in Prepomax at (0,0,0). Why is the coordinate system symbol shown below? The orange cross symbol is the current rotation point for the mouse rotation. By default, it is the bounding box center. It can be moved by using a single middle button click. ---
**Author:** ![FEAnalyst](https://yyz2.discourse-cdn.com/free1/user_avatar/prepomax.discourse.group/feanalyst/32/688_2.png) [@FEAnalyst](https://prepomax.discourse.group/u/FEAnalyst)\ **Post date:** [October 16, 2024, 6:20pm UTC](https://prepomax.discourse.group/t/difference-in-results-creo-vs-ppm/2085/31 "2024-10-16T18:20:24Z")
For now, here are the Abaqus results with adjusted legend: ![bracket new abq](https://global.discourse-cdn.com/free1/uploads/prepomax/original/2X/4/45cd487bf1b7a14bfc52daf386beecb1f95dcbdc.png) They look very similar. And displacements are pretty much the same: ![bracket new abq 2](https://global.discourse-cdn.com/free1/uploads/prepomax/original/2X/2/229cb61efa41b0b8a4371f3cf65fff53791b2b04.png) So it’s definitely not CalculiX’s inaccuracy. Just a matter of the mesh (and the difference in this aspect in both solvers). ---
**Author:** ![Michal](https://avatars.discourse-cdn.com/v4/letter/m/34f0e0/32.png) [@Michal](https://prepomax.discourse.group/u/Michal)\ **Post date:** [October 16, 2024, 6:37pm UTC](https://prepomax.discourse.group/t/difference-in-results-creo-vs-ppm/2085/32 "2024-10-16T18:37:50Z")
thanks . I also have good opinion about Calulix & PPM. But I have to keep looking to find where is mistake thx anyway ---
**Author:** ![synt](https://yyz2.discourse-cdn.com/free1/user_avatar/prepomax.discourse.group/synt/32/4658_2.png) [@synt](https://prepomax.discourse.group/u/synt)\ **Post date:** [October 17, 2024, 6:01am UTC](https://prepomax.discourse.group/t/difference-in-results-creo-vs-ppm/2085/33 "2024-10-17T06:01:47Z")
maybe, it can try by changes the load distribution to surface traction instead of rigid body and reference nodes. ---
**Author:** ![Michal](https://avatars.discourse-cdn.com/v4/letter/m/34f0e0/32.png) [@Michal](https://prepomax.discourse.group/u/Michal)\ **Post date:** [July 14, 2025, 12:53am UTC](https://prepomax.discourse.group/t/difference-in-results-creo-vs-ppm/2085/34 "2025-07-14T00:53:15Z")
Now I have studied both models very deeply. diference is in load apply: in PPM load is applied by rigid link (for point load ) [RB2] and in creo load is as remote load (poin load) in PPM additional stiffness is added via rigid link and in creo is some kind of load distribiuton depend on point position/relation to surface where load is to be applied some kind of RB3 I suppose) Thanks for help best regards ---
**Author:** ![FEAnalyst](https://yyz2.discourse-cdn.com/free1/user_avatar/prepomax.discourse.group/feanalyst/32/688_2.png) [@FEAnalyst](https://prepomax.discourse.group/u/FEAnalyst)\ **Post date:** [July 14, 2025, 6:38am UTC](https://prepomax.discourse.group/t/difference-in-results-creo-vs-ppm/2085/35 "2025-07-14T06:38:26Z")
> [@Michal](#): > > load is to be applied some kind of RB3 I suppose You could try CalculiX’s distributing coupling then but it’s not yet supported in PrePoMax and requires the use of Keyword Editor: [RBE3 integration in PrepoMax (Kinematic & Distributing Coupling)](https://prepomax.discourse.group/t/rbe3-integration-in-prepomax-kinematic-distributing-coupling/44) > **[Different coupling constraints and their limitations](https://calculix.discourse.group/t/different-coupling-constraints-and-their-limitations/2586)** > > Since it can be quite confusing, I am creating this post to summarize the differences between coupling constraint types in CalculiX and to highlight their key limitations. Feel free to correct/add anything to this. ABAQUS Let’s have a look at... [Previous page](https://prepomax.discourse.group/t/difference-in-results-creo-vs-ppm/2085.md?page=1)