Electronics > Manufacturing & Assembly

JLC Assembly - stencil weirdness with non-component pads

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mikeselectricstuff:
My PCB has some non-component pads that I want paste on, so wires can be soldered on later - no problem I thought, just put a pad with an an aperture in the paste layer, like any component pad, and put a note in the comments box as I'd seen something about pasted non-component pads somewhere on their site.

I got a message from JLC that they don't use the customer's paste gerber file, and create the stencil from the component footprints - can I send a drawing showing which non-component pads need paste..?
And of course they add a cost supplement for this - $3.20 (Is it really worth bothering to bill for such a small amount?)

Out of curiosity - for anyone that's used JLC PCB assembly and had parts that were not populated - were the pads for the non-fitted parts pasted  or not ?

coppercone2:
it sounds like a big hassle maybe its worth just spring connectors on there , or something like this
https://mac8usa.com/product/lever-type-electric-wire-installation-terminal/

I have a feeling that some how through translation problems or just general negligence your gonna get screwed on this

I think their cheap because its super structured and automated, i don't think its go-getters

radar_macgyver:

--- Quote from: mikeselectricstuff on October 30, 2024, 11:30:52 pm ---Out of curiosity - for anyone that's used JLC PCB assembly and had parts that were not populated - were the pads for the non-fitted parts pasted  or not ?

--- End quote ---
The handful I've done did not have any paste on non-fitted part pads. My boards were all HASL, but even the larger pads (like the EPAD for a QFN) were flat so I'm fairly sure they didn't apply paste there.

langwadt:

--- Quote from: radar_macgyver on October 30, 2024, 11:59:00 pm ---
--- Quote from: mikeselectricstuff on October 30, 2024, 11:30:52 pm ---Out of curiosity - for anyone that's used JLC PCB assembly and had parts that were not populated - were the pads for the non-fitted parts pasted  or not ?

--- End quote ---
The handful I've done did not have any paste on non-fitted part pads. My boards were all HASL, but even the larger pads (like the EPAD for a QFN) were flat so I'm fairly sure they didn't apply paste there.

--- End quote ---

makes sense for people that want to source and mount some parts later

fourfathom:

--- Quote from: mikeselectricstuff on October 30, 2024, 11:30:52 pm ---Out of curiosity - for anyone that's used JLC PCB assembly and had parts that were not populated - were the pads for the non-fitted parts pasted  or not ?
--- End quote ---

I've also had no paste on the non-populated parts.  These parts were not included in the BOM, or (as I recall) the placement file.

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