Electronics Forum | Thu Nov 17 23:33:08 EST 2005 | darby
If the machine is on it's way..... Question is 1. What if the machine is on its way / remote site...and need to estimate (say 90-95%) probability ? A1. 1 x 8 hour shift 65% x 1 of software estimate or stop watch estimate run on same machine in a dr
Electronics Forum | Wed Nov 16 08:53:26 EST 2005 | nkbkiran
Once the gerber files and BOM list are generated by CAD packages for download on to SMT production line....How is the cycle time of that PCB operation determined? Is their information with in Gerber files by which you can estimate, before actual pr
Electronics Forum | Wed Nov 16 09:32:46 EST 2005 | bobpan
If its newer equipment.....and newer software.....usually the software for the smt machine will tell you the estimated time once the board has been programmed. If its older equipment.....get the old stop watch out.
Electronics Forum | Thu Nov 17 13:48:42 EST 2005 | stepheniii
And don't forget to implement the "Scotty" technique for estimating time.
Electronics Forum | Wed Nov 16 11:20:29 EST 2005 | nkbkiran
AJ Thanks for the reply --you answered my question regards
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 | Wed Nov 16 10:56:43 EST 2005 | aj
The latest software packages and stopwatch will do the job but if your manager is anything like mine he wants to know straight away from the BOM. If you split the bom down between placement machines i.e. caps and resistors etc on chipshooter and ICs
Electronics Forum | Thu Aug 26 13:20:56 EDT 2004 | pjc
Machine design plays a major factor in actual placement rate vs. the published tact time max speed. For example, random access horizontal turret head machines can vary greatly depending on nr. of different components and size ranges, while the dual g
Electronics Forum | Wed May 07 01:40:41 EDT 2008 | andrzej
What techniques do you use practically to reduce rearmament time of SMT line in high mix production ? There was such post on forum about it but I would like to gather all techniques in one post so everyone can add some ideas which are already applie
Electronics Forum | Fri Jul 30 09:43:44 EDT 1999 | C.K.
| We are having a process related problem with pullup resistors on a controller card which has a I960 micro-processor. | The controller monitors signal inputs and it's own resources then blinks a LED to indicate its working. The problem is that after
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