Heat insert M1

[zihuizhang]

Hello!

I was tyring to heat-insert the M1 brass knurled inserts into the 3D printed payload holder but I couldn't find an adapter to connect the soldering iron with the insert...There are many heat-insert kits online for M2 or larger but not for M1... Would you mind sharing the equipment you use? Or are there some other tricks to heat-insert M1 thread? Thank you again!

Cheers,
Zoe

[pipcoen]

Hi Zoe,
We don't use any attachments. Just pressure with a standard soldering tip,

Best,

Pip

[zihuizhang]

Hi Pip,

Thank you for your reply! I tried again and the part cracked a bit but the M1 insert went in…I had no luck with the M3 brass insert for the holder though - it didn’t melt the resin but made some material into ashes…I heat-pushed for 15 minutes and didn’t make any progress . I used rigid resin SLA as described in the paper. I was wondering if the material I used was correct.. Google said it’s thermoset not thermoplastic etc.. Thanks again!

Cheers
Zoe

[pipcoen]

Can you provide a link to the resin you have used?

[zihuizhang]

Hi Pip, I used Formlabs rigid resin 4000. I reduced the soldering temperature from 300 to 210, changed a soldering tip, changed the heat insert that was 1mm too big, and it worked! Here is what I have now with a dummy neuropixel 2 installed. Does it look right to you? The flex cable seems a bit long… Thank you! Cheers, Zoe Zihui (Zoe)

…

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[pipcoen]

Hi Zoe, did you mean to attach an image?

[zihuizhang]

Yes, sorry it didn’t display. Here are the photos Do they look correct to you?


Thanks a lot!
Zoe

[pipcoen]

Hi Zoe,
we typically fold the flex cable a few times and "compress" it beneath the lid so a much smaller section of the flex (as you can see in the attached image). Otherwise you're image looks right to me.