Q&A Community - JLCCNC

Excellon files

Seems that you cannot open excellon files. I put .XLN to my excellon files expecting to make them readable with no success

1 Reply Asked by 88*******7A

Minimum annular ring for via

What is the minimum annular ring for a via? I do not see any information about this in your capabilities page.

1 Reply Asked by 27*******9A

Buying parts

Can I just buy components?

1 Reply Asked by 51*******3A

Minimum Hole Clearance - NPTH to PTH

For a keyboard PCB, I'm using "standard" keyswitch footprints in Kicad, but I'm concerned that holes may be too closely sp......

0 Reply Asked by 87*******9A

Shipment to Italy with duty paid

Hi, What type of shipment should I choose for shipment to Italy with duty paid? Regards

1 Reply Asked by 87*******6A

What do the + and - on LED footprints mean?

Do the symbols on the PCBA placement page follow this schematic symbol? Just want to make sure.

1 Reply Asked by 21*******2A

Silk Screen Ordering

What information is needed to order Silk Screening on a part? Does the DXF need to include just the image/text to be print......

1 Reply Asked by 57*******9A

Solder mask question

Is it correct that the copper layer is not exposed in the area where the solder mask layer is removed from the attached pi......

1 Reply Asked by 75*******3A

Inquiry About PCB Fabrication Without Solder Mask

I am inquiring about the possibility of producing a PCB without any solder mask application. For our project, it is essent......

1 Reply Asked by 87*******6A

Exact Build Up of PTFE 1.52mm PCB

Hello, For simulation purpose I need to specify exact parameters of the PCB. In this case it's about 1.52mm 2 layer PTFE T......

1 Reply Asked by 56*******9A

PTH & NPTH hole distance from edge cut

What would be recommended minimum PTH and NPTH hole/drill distance from PCB edge (milled edge, not a v-cut) to avoid manuf......

1 Reply Asked by 21*******9A

MIlling slot size

hello, i see on the capabilities page to mill a slot inside the PCB area say a half circle the std mill size is 1mm ? can ......

1 Reply Asked by 22*******1A

single layer copper core trace spacing

Hello For singe layer copper core boards, what is the minimum trace width and the minimum distance between traces ? Thanks

1 Reply Asked by 86*******6A

Stackup for 0.4mm 2 layer board

Where can i find a detailed stackup for a 0.4mm 2 layer board? I need it for impedance considerations

1 Reply Asked by 53*******2A

Thermal Relief Via Covering

Hi! I'd like to add thermal relief vias to a QFN thermal pad, but since epoxy/copper filling is expensive, I want to ask i......

1 Reply Asked by 85*******4A

tht pad size

Hello, I have a PCB design that requires very small tht pads (through hole) what is the smallest hole and diameter I can g......

1 Reply Asked by 86*******9A

203x934 mm flex PCB

Hello, Do you have the ability to produce 2-layer flex PCB that is 203mm in width and 934mm in height? Thanks, Elaine

1 Reply Asked by 87*******3A

Hardcoat anodizing black

I want to create a frontpanel in Aluminum 6062 Hardcoat anodizing black. As the fonts should be visible they should be pro......

1 Reply Asked by 83*******5A

IOSS number for EU countries

Hi! For importing goods to EU in the IOSS mode, the local authorities of Czech Republic require end customers to pair pack......

1 Reply Asked by 26*******7A

Can my friend also work on my PCB design?

Hello Can I share collaborate a design with another Hardware Engineer who has another account? Thanks Suresh

1 Reply Asked by 83*******7A