ruthex M6 Threaded Inserts Short - 25 Pieces RX-M6x6.8 Brass Heat Set Insert for Plastic Parts - Metric knurled - Insert by Heat into 3D Printing Component

Here’s the solution. Download the SLT file here and have it 3D printed: https://www.thingiverse.com/thing:5400460 Local guy charged me $.50 each Then melt in one of these metal threaded inserts, you need a M6. The hole as it comes in the 3D part is 5.5mm in order to use that insert it needs to be 7.5mm. I drilled it out but making it 7.5mm would be easier if you’re handy with designing the 3D part, I am not. Inserts: https://www.amazon.com/dp/B0CR9ZTS8J?ref=ppx_pop_mob_ap_share You want the short version