Author Topic: Best way to put DIL pins on a small PCB to create replacement for old parts.  (Read 10460 times)

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Offline TK

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That's cute. Do you cut the plastic headers socket part off? Can we see the other side?  :-+
The whole process:






 
The following users thanked this post: edavid, Nemesis1207

Offline deanclaxton

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They are not square, I know you are trying to avoid that and so am I.  They are flat and look like this:

https://www.bc-robotics.com/wp-content/uploads/2018/12/8p-stacking.jpg

GB

Ahh - right - excellent - I need to check that drawing again for thickness but that could be a winner

EDIT : Ohhhh 0.64 X.4! Awesome - I was reading 0.64 X 4 (as in square) - that seems the best option so far I think.
« Last Edit: May 18, 2020, 11:35:05 pm by deanclaxton »
 

Offline deanclaxton

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Awesome - yes - that's what I need. How flat are they? 0.4mm ish? What drill size will they work with on the PCB?
« Last Edit: May 18, 2020, 11:36:14 pm by deanclaxton »
 

Offline TK

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Awesome - yes - that's what I need. How flat are they? 0.4mm ish? What drill size will they work with on the PCB?
The pins are 0.64 x 0.4.  The square ones are 0.64 x 0.6
 

Offline deanclaxton

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Awesome - yes - that's what I need. How flat are they? 0.4mm ish? What drill size will they work with on the PCB?
The pins are 0.64 x 0.4.  The square ones are 0.64 x 0.6

Excellent - thanks TK for confirming - and thanks GB for pointing them out. Seems like this is the best way forward and I assume they can be obtained quite economically from the likes of LCSC - I'll go shopping :)

TK - is that for a PLA replacement? I've got a pile of C64's that I need to finish working through - I've got most up and running from memory. At least one required a PLA - I need a SID for one or two of them from memory.

Technically these should fit in a 0.8mm drill hole - datasheet seems to recommend 1.02mm. I dont suppose it really matters - a tighter fit helps keep them straight I suppose, while assembling them.
« Last Edit: May 19, 2020, 12:51:04 am by deanclaxton »
 

Offline ChristofferB

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I really like using male-male DIP connectors like these:



They arent super easy to find anymore though.
--Christoffer //IG:Chromatogiraffery
Check out my scientific instruments diy (GC, HPLC, NMR, etc) Channel: https://www.youtube.com/channel/UCZ8l6SdZuRuoSdze1dIpzAQ
 

Offline TK

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Awesome - yes - that's what I need. How flat are they? 0.4mm ish? What drill size will they work with on the PCB?
The pins are 0.64 x 0.4.  The square ones are 0.64 x 0.6

Excellent - thanks TK for confirming - and thanks GB for pointing them out. Seems like this is the best way forward and I assume they can be obtained quite economically from the likes of LCSC - I'll go shopping :)

TK - is that for a PLA replacement? I've got a pile of C64's that I need to finish working through - I've got most up and running from memory. At least one required a PLA - I need a SID for one or two of them from memory.

Technically these should fit in a 0.8mm drill hole - datasheet seems to recommend 1.02mm. I dont suppose it really matters - a tighter fit helps keep them straight I suppose, while assembling them.
Yes, it is the PLA replacement.  I have them listed on eBay.  Just use the regular pin header footprint in Kicad.  It is better to have a hole big enough to fit the pin and a lot of solder needs to flow down to secure them in place.  If you use a very tight fit hole, then not enough solder will fill the hole.
 

Offline grantb5

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I think Samtec has something similar that you can buy, and in the pin count you want. They would have a much lower MOQ.  Also, if you have enough vertical space you could just use machined pins with a small enough diameter possibly.
« Last Edit: May 19, 2020, 02:17:44 am by grantb5 »
 


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