| T O P I C R E V I E W |
| Mike Warren |
Posted - 17 Jan 2013 : 05:55:46
A PCB assembler has just asked me if I can supply component positions in DXF format. Is that something EPC can do?
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| 9 L A T E S T R E P L I E S (Newest First) |
| Iain Wilkie |
Posted - 18 Jan 2013 : 09:20:18
Quote from help file ......
The component centre is displayed in the current design units (defined in the Units dialog). It is taken as the component bounding box excluding the component reference name, values or any other component bound text. It does however include pads and silk screen shapes.
Iain |
| Mike Warren |
Posted - 17 Jan 2013 : 21:40:41
I didn't know that. I assumed it was the symbol origin. |
| Iain Wilkie |
Posted - 17 Jan 2013 : 20:52:53
The ref point on the component on the component positions output is the centre of the silk screen symbol .... You cannot alter this ....
Iain
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| Mike Warren |
Posted - 17 Jan 2013 : 20:41:08
I do that too. What I meant was the point of reference in the component itself is unknown. I always make it the centre of the component, but it could be placed anywhere in the footprint designer. |
| edrees |
Posted - 17 Jan 2013 : 15:12:07
EPC component position report generates the XY position with respect to the absolute origin of your design. I make the bottom left hand corner my absolute origin, so the components are not referenced to some arbitrary position probably off the pcb.
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| Mike Warren |
Posted - 17 Jan 2013 : 11:29:53
I already told him I didn't think I could supply DXF and he didn't reply, so I guess he's working with the CSV.
I can see that having a complete description of the bounds of the component would mean he wouldn't have to manually adjust each component type (or maybe each component). After all, the coordinates just specify an unknown (to him) point on the component. |
| Iain Wilkie |
Posted - 17 Jan 2013 : 11:21:38
As far as I am aware pick & place can take a number of import formats, so why just DXF doesn't seem quite right.
Iain |
| Mike Warren |
Posted - 17 Jan 2013 : 10:44:44
I've been using EPC since 2004 (admittedly, PCB design is less than 5% of my job) and this is the first time I've been asked that. Apparently, it makes it much easier to load into the pick and place machine.
I've only used this company once before and they didn't ask then, but that job only had about 20 or so components on it. |
| Iain Wilkie |
Posted - 17 Jan 2013 : 09:40:01
Don't think so .... However we have always supplied it in CSV or TXT format and our manufacturers have always been happy with that.
Iain
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