Electronics Forum | Wed Jul 26 11:44:55 EDT 2017 | rgduval
Check with your board house and see if they can do jump-scoring. I haven't dealt with a fab house yet that could, though, so, while it should be do-able, it doesn't appear to be super common, IMO. Alternatively, you could sand the edges after break
Electronics Forum | Fri Jul 28 09:18:53 EDT 2017 | sumote
Fancort sells a router that will singulate the boards out of the panel, and smooth the edges at the same time. I had one of these at a previous job and it worked well enough. Programming is tedious (it is done at the machine by "learning" point to
Electronics Forum | Wed Feb 22 20:33:25 EST 2006 | davef
Here's your design rules: * IPC-2221 * IPC-2222 Bonus is that they include the works, not just break-away tabs
Electronics Forum | Tue Apr 18 14:03:52 EDT 2017 | davef
Can you use a breakaway tab on the board that you're assembling as your coupon?
Electronics Forum | Mon May 04 16:42:34 EDT 2009 | pauld
I'm with hoss67. Trust the local pcb fids. Have you run the camera down one edge of the board to see if it runs off due to a poorly scored breakaway? Some fab houses do not hold very tight tolerances for breakaways.
Electronics Forum | Tue Dec 07 22:13:43 EST 1999 | sin
Like Wolfgang said, the breakaway tab is just another bar added to the edge of the pcb. This breakaway tab can be added by the FAB house in addition of extra cost...You can write DFM for your customer to see if they will pay for the cost or not...if
Electronics Forum | Thu Apr 30 12:50:07 EDT 2009 | realchunks
Could be board support. Breakaway boards are a little more flimzy than boards without. A bowed board will cause miss placements - again can be overcome with proper supports (depending on the machine) I would bet that the boards with breakaways h
Electronics Forum | Tue Jun 03 15:43:12 EDT 2003 | Randy Holman
I'm trying to determine the best panelization technique, but have been unfruitful in my internet search for more information. I'm trying to determine the advantages and disadvantages of using either V-scoring or tab-routing (break-away tabs), but ha
Electronics Forum | Wed Apr 29 17:43:14 EDT 2009 | smt_guy
I have a Product with 2 Different PCB Fiducial allocation in the Design. It has 4 Fine Pitch components. The first PCB DO NOT have Fiducial Mark on the board itself BUT has Fiducial on the Break-OFF Tabs. The second PCB has no Break-Off Tab but has f
Electronics Forum | Mon Nov 08 19:10:10 EST 1999 | Brian W.
Oh boy, does that bring back memories!!!!! You are most likely breaking components when the board is flexed during separation. Any components perpendicular to the score are candidates for mechanical stress. We overcame the problem by making our ow
