# Loading stream model with cutoffscale

**URL:** <https://forum.techsoft3d.com/t/loading-stream-model-with-cutoffscale/3320>\
**Category:** HOOPS Visualize Web\
**Created:** [March 4, 2024, 8:34am UTC](https://forum.techsoft3d.com/t/loading-stream-model-with-cutoffscale/3320 "2024-03-04T08:34:53Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![tino](https://avatars.discourse-cdn.com/v4/letter/t/9dc877/32.png) [@tino](https://forum.techsoft3d.com/u/tino)\
**Post date:** [March 5, 2024, 4:23pm UTC](https://forum.techsoft3d.com/t/loading-stream-model-with-cutoffscale/3320/3 "2024-03-05T16:23:07Z")

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Hello @Rui.Zhang03,

It is okay to only provide the bounding box information at the part level – if you’d rather not convert the assembly in order to better manage hardware resources such as RAM.

For clarity, the part in question in this case is the one referenced with `<ExternalModel/>` as stated in [point #10 in our docs](https://docs.techsoft3d.com/communicator/latest/prog_guide/viewing/data_model/stream_cache/shattered-workflows.html#xml-format).

If you find that using cutoff scale is not working as expected, our recommendation would be to create a support ticket in our portal. As it is likely that we will need the source CAD file to do a more thorough investigation.

Thanks,  
Tino

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