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Messages - TomKeddie

46
General discussion / Dirty support greatest hits
I think its interesting they can get the other layers right (every time for me) but the silk is such a crapshoot.  I guess they have a bunch of people aligning them and how well it is done depends on the person (and the time of day).  ie. the good people all do the copper and mask layers, silk is the training/proving ground.


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47
General discussion / Tool for panelizing gerbers files
[quote author="TomKeddie"]Just send the board to dirty with gaps between them.  Some angel ads them for you, well they do for me....


Sent from my iPad using Tapatalk HD[/quote]

Forgot that I use gerbmerge.  It doesn't work too well with kicad though because it outputs metric gerbers.  I found a fork that had fixed this but wasn't capable of mixing metric and inch so I was unable to combine eagle and kicad which was what I wanted to do.

Gerbmerge just stores the data raw, it retains the precision from the file.  if you end up trying to merge two gerbers of different precisions this won't work either.

(lazy edit, am using and ipad, is a sob to edit text with)

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49
General discussion / Taobao Agent Experiences/Reviews for Electronics Purchasing
Now that taobao accepts foreign credit cards there is no need to use an agent.

Add your foreign address to your account, during checkout you will be offered freight forwarders who will accept your parcels and forward them to you.  No commission, just the forwarded freight charge.  All of the above spam is now redundant.

One tip, you often have to turn off translate when selecting items within the taobao system, memorise the position of the thing you are selecting, turn of the translation and select it.  The translation seems to interfere with the javascript.

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50
Sick of Beige / Re: Sick of Beige openscad script
I've gone a bit further and written a python script to convert the dxf files to kicad footprint files.  The script can be found at https://github.com/TomKeddie/python-scr ... scad2kicad  the generated footprint files at https://github.com/TomKeddie/openscad-s ... ige.pretty

It turns out to be fairly easy because, looking at the openscad source, it only generates line segments in its dxf export.  Unfortunately it does not export color information so I can't do multiple layers but I'll work on that next.

This of course opens up the possibility of generating any crazy pcb shape you want with openscad.
51
General discussion / Re: Dirty Taobao forwarding service
Ian,

Looks cool.  My first attempt didn't detect multiple items from the same seller and charged $3 each item.

You might want to add local delivery option for hacker campers to use - I used Bhiner to do this last time but they charge per item commission.

Cheers,
Tom
52
Sick of Beige / Re: Sick of Beige openscad script
I added pre-generated dxf files for all sizes to the above.  They seem to load fine in our (somewhat picky) lasercad software that drives our cutter.  You mileage may vary, test on a piece of scrap.
55
General discussion / buy wire markers - Rec free Twitter board
[quote author="volthaus"]Hi David in Austin, TX and one a free PCB a week back. How long beofre I can expect it to arrive and can I buy stickers and cable markers? Thanks[/quote]

Free pcbs ship airmail from china, expect at least 3-4 weeks to the US.

I think the stickers and cable marker prototypes are done and never became a shipping product.


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58
General discussion / New MultiSIM BLUE PCB CAD software
Hey Bob,

Thanks for saving me the trouble for downloading this PoC.  I can't believe they have PICs and not Atmel, what were they thinking?  The time it would take to match inventory to footprints dictates this will be a failure.  On the other hand, if Mouser just added the ability for people to upload public eagle library entries for parts (and for them to be peer reviewed) that might just work.  But Eagle is owned by a competitor so I guess that is out.

Cheers,
Tom


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60
General discussion / DirtyPCBs.com updates
[quote author="ian"]I got a request and spent a morning looking for suppliers, but then the person was 'just curious' so I dropped it.[/quote]

Ask bunnie, he went through it all for chibtronics.


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