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DAlbe.3
Associate III
July 30, 2023
Solved

Printing STLinkV3-MINIE enclosure

  • July 30, 2023
  • 8 replies
  • 8437 views

Kudos and thanks to the ST dev-tool team for making an enclosure STL file available (on the product page under CAD Resources) so users can print enclosures for the STLinkV3-MINIE.  This post is just to help others with print settings so they don't have to experiment as much as I did.

There are only two real problems I encountered:

  1. The opening for the STDC14 connector is not centered in the enclosure as it should be; as a result, after printing, you must cut a significant amount of material from one of the short sides of the opening before the board can be inserted flat with the STDC14 connector going through the opening.  (you can see where I had to cut in the photo below).

  2. When slicing the STL file with Cura (probably the most popular slicer), you need to uncheck the "Union Overlapping Volumes" box in the Mesh Fixes section of the print settings.  If you do not, then the hole for the STDC14 connector is filled in by the slicer and the enclosure is unusable. 

Otherwise, printing is straight-forward.  I've printed several using PLA (at 200C) directly on a heated (60C) glass bed using only glue stick for adhesion.  I use 20% infill density and do not use supports or any other adhesion aids (brim, skirt, etc.).

ST: if you're listening, first: thank you for providing this!  If you are inclined, please consider:

  1. Fixing the model and STL: the STDC14 connector opening needs to be centered horizontally. 
  2. Sharing the 3D-model (e.g. STP file) used to generate the STL file to make it easy for customers to modify it for use in test and factory fixtures.
  3. Share a 3D-model of the MINIE itself - again to help customers incorporate it into other mechanical fixtures. 

MINIE_enclosure_cut.jpgMINIE_enclosure_cut2.jpg

This topic has been closed for replies.
Best answer by Thierry GUILHOT

I would like to thank you for reporting us this issue with the casing and all recommendations. Before publishing a new zip package, I'm wondering if you would confirm us that the attached .stl file is answering to your need. We've tested it and we consider it is all right but getting your approval would be more than welcome.

Please note that we are also considering your other feedbacks regarding the different files to share.

8 replies

RhSilicon
Lead
July 31, 2023

Sad even the 3D file has issues :expressionless_face:

Mike_ST
Technical Moderator
August 1, 2023

Hello,

Thank you for your comments.

I have entered a ticket with your inputs, and don't know where it will go.

For the connector opening which is not centered, my guess is the designer wanted the "CN14" reference to be visible.

In order to give better visibility on the answered topics, please click on 'Best answer' on the reply which solved your issue or answered your question. 
DAlbe.3
DAlbe.3Author
Associate III
August 1, 2023

Thanks @Mike_ST , I appreciate you entering the ticket!  If the designer is modifying the case, they might also consider putting ventilation; the MINIE runs a bit warm naturally and more so when enclosed; nothing problematic, but OTOH, adding holes in most CAD tools is trivially easy; they could even make the ST logo go fully through the enclosure which would look pretty slick.  Thanks again!

Mike_ST
Technical Moderator
August 2, 2023

Added these 2 points in the ticket.

In order to give better visibility on the answered topics, please click on 'Best answer' on the reply which solved your issue or answered your question. 
Thierry GUILHOT
Thierry GUILHOTBest answer
Technical Moderator
August 2, 2023

I would like to thank you for reporting us this issue with the casing and all recommendations. Before publishing a new zip package, I'm wondering if you would confirm us that the attached .stl file is answering to your need. We've tested it and we consider it is all right but getting your approval would be more than welcome.

Please note that we are also considering your other feedbacks regarding the different files to share.

DAlbe.3
DAlbe.3Author
Associate III
August 2, 2023

@Thierry GUILHOT 
Perfect!

miniev3.jpg

DAlbe.3
DAlbe.3Author
Associate III
August 2, 2023

Many thanks for the quick response @Thierry GUILHOT, I will print it now and post the results.

Thierry GUILHOT
Technical Moderator
August 3, 2023

Thank you for the feedback. May I ask you what is the board revision of your STLINK-V3MINIE (MB1762-V3MINIE-xxx)? I want to double check one point.

DAlbe.3
DAlbe.3Author
Associate III
August 3, 2023

Thank you @Thierry GUILHOT.  Most are very recently purchased and are MB1762-V3MINIE-B01.

Thierry GUILHOT
Technical Moderator
August 4, 2023

Thank you @DAlbe.3 for your feedback. We've got now all data to complete the new zip package and publication on st.com.