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allpcb/pcbway DRC spec for PCB edge clearance?
MUFF WIGGLER Forum Index -> Music Tech DIY  
Author allpcb/pcbway DRC spec for PCB edge clearance?
charonme
Eagle has a setting for PCB edge clearance called "Copper/Dimension"

that limits how close can pads and traces be to the edge of the PCB. What is this value for PCB manufacturers like allpcb, pcbway or similar?

I couldn't find it on their webs:
https://www.pcbway.com/capabilities.html
https://www.allpcb.com/standard_pcb_manufacturing_capability.html

I find 1mm (probably a default setting) too restrictive, I've seen PCBs that have pads and traces much closer to the edge
Synthiq
pcbway: Line to board edge distance, CNC milling: 0.25mm
CLee
I just use the OshPark tech specs as my DRC

https://docs.oshpark.com/services/two-layer-hhdc/

15mill distance to board edge
charonme
do the chinese pcb fabs print silkscreen on the top side only or also bottom for the cheapest prototype boards?
Chrutil
charonme wrote:
do the chinese pcb fabs print silkscreen on the top side only or also bottom for the cheapest prototype boards?


I guess that depends on which one you refer to, but I generally use Seeedstudio fusion, which I guess qualify for cheap Chinese, and they have supported everything I throw at them - silk screen to/bottom, milling, etc.
charonme
so far I looked at allpcb and pcbway and couldn't find this information on their web (not even the minimum font size allowed)
vongon
Just thought I'd add that I've been using PCBWAY for the last 6 months on a project and I've been really happy with them even though they are a "cheap" manufacturer.

If you design your project in Eagle, they have a link that will convert your eagle project into the specific files they need to fabricate.

You select this option when placing your order, more details here: https://www.pcbway.com/blog/News/New_feature_released___convert_Eagle_ brd_to_Gerber_file_by_one_click_online.html

OSH Park is definitely the highest quality and most user friendly, but if you are willing to work with pcbway, you can get things a lot cheaper : )
charonme
vongon wrote:
Just thought I'd add that I've been using PCBWAY for the last 6 months
thanks, do you have a thread with photos of your pcbs? if not, could you post some here? do they print the silkscreen on both sides for you?
Altitude909
vongon wrote:
..
OSH Park is definitely the highest quality and most user friendly, but if you are willing to work with pcbway, you can get things a lot cheaper : )


I disagree on both points. I've had more bad etches on OSH park boards than anywhere else and they were never some crazy pitch or anything, just defective parts. Their eagle bot isnt very flexible, I stopped using that a log time ago and always send gerbers.

I've been using OSH since the Dorkbot days and they kinda pioneered the cheap proto thing but times have changed. You can get better boards (HASL plated, multiple colors, etc) in a fraction of the time (JLC is 5 days to my door) and for less..
charonme
do they specify anywhere on their webs whether they print the silkscreen on the bottom side too? I can't find it anywhere
cygmu
I have not used PCBway myself but I believe that for instance the Mutated PCBs sold at Modular Addict are fabricated there.
https://modularaddict.com/mutated-braids-pcb

I have had boards made by allpcb, jlcpcb and dirtypcbs all without issue and all with silkscreen on both sides.
gbiz
charonme wrote:
do they specify anywhere on their webs whether they print the silkscreen on the bottom side too? I can't find it anywhere


PCBWay do.
CLee
Yes, I've gotten prototype runs from AllPCB and they print silk both sides
Andreas
Got some from JLCPCB and the also print silk on both sides.
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