Electronics Forum | Tue Aug 30 15:29:17 EDT 2005 | pr
I agree with cmiller on almost everything except the fluxer. I have not found that to be the slowest part of the process. On a slightly populated board, preheat will be the biggest cycle time killer. On very highly populated boards, time spent at the
Electronics Forum | Tue Apr 18 15:36:49 EDT 2006 | George
I do not know what kind of products you assemble but don't forget about the cycle time. You probably could accomplish more and faster with a custom nozzle (solder fountain style)for a specific application than point-to-point soldering as laser. I eva
Electronics Forum | Sun Nov 08 10:41:11 EST 2009 | rao
Excellent Web OEE calculator... For Ideal Cycle time we use to take Programming Cycle Time but in this calculator it seems you have taken Equipment Rated CPH. For a Given Board & the placement locations the rated CPH is not at all attainable because
Electronics Forum | Fri Apr 08 06:18:41 EDT 2011 | don7888
Thanks Everyone I have attempted to take an average for the all the components but this but theres such a range of times I don't think this is accurate enough maybe I should try for the different types of sizes of components. As for the cycle time I
Electronics Forum | Thu Mar 19 02:35:48 EDT 2020 | franknguyen
Hi, I got a new project, and need to provide customer the ICT (In-Circuit-Testing), FPT (Flying-Probe-Testing) process quotation. The new PCBA contains analog components, digital components, and some BGAs that can support Boundary Scan. Does anyone
Electronics Forum | Wed Mar 03 19:30:37 EST 2010 | dcell_1t
Yes, it is basically: Rate = Time interval/Cycle time I put time interval since you can measure however you want (pc per hour, per day, per quarter hour... it is relative) the most used is Pc/Hour, so the time interval is 1 hour (3600 sec). Lets sa
Electronics Forum | Mon Jul 07 00:33:12 EDT 2003 | praveen
First we have to look in to the current situiation of the SMT line.Is the pick and place machine very old and can not perform consistently. Is the board to be inspected is very dense and have lots of connectors and fine pitch comp.with lots of 0402 c
Electronics Forum | Mon Jun 07 14:13:53 EDT 2004 | ricardof
Gabriele, yes you're right, but my question is more focused to restrictions as for the Operators, and then the performance in Screen Printer and Oven. The board has 400 high speed parts and 20 parts for Odd Shape machine (QFPs and 2 BGAs), Board is n
Electronics Forum | Wed Nov 16 11:09:11 EST 2005 | nkbkiran
Bobpan ..Thanks for the 1st input Let me ask in a little more detail The controller on SMT machine will understand the X-Y positions to mount the chips/transistor based on a given centroid in gerber file---the software on machines like Fuji, Assem
Electronics Forum | Thu Nov 30 08:15:16 EST 2006 | jdengler
If you define cycle time as the time it takes to complete one board it is a useless number. What you need to know is the time it takes to complete one board and start the next board. This means first fiducial on first board to first fiducial on th
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