Electronics Forum | Tue Jun 26 19:59:08 EDT 2001 | davef
They always tell you to calculate ROI, when they want to blow you off. Do a net search using - calculate ROI. Links to three pretty good descriptions on this are: http://www.dmreview.com/editorial/dmreview/print_action.cfm?EdID=2487 http://www.eval
Electronics Forum | Fri Jun 29 05:50:27 EDT 2001 | nifhail
Thank Dave, your information was really helpful. Now that I have another few thousands of old datecode PCBs which has an Entek and HASL finished. Entek PCBs are about 6 � 1.5 years old and HASL boards are at 1 - 2 years old. To make it worse, s
Electronics Forum | Fri Feb 03 18:57:39 EST 2006 | bayanbaru
I am task to make productivity improvement for production. The line configuration is as follow: MPM Printer/S20/S20/S20/S20/GSM/GSM/MVT/BTU How to calculate the capacity of the above configuration? What factors do I need to consider?
Electronics Forum | Mon Jul 06 18:00:16 EDT 2015 | jwqc
Does any one know how to calculate BGA height change after reflow oven? I guess the calculation will be based on the component size, weight, ball diameter and ball count of the BGA, but how to get the actual height?
Electronics Forum | Tue Jul 07 10:25:03 EDT 2015 | swag
Dial indicator on a post/base. You might need a fine point tip to get between adjascent components and the BGA. Or... if you're real fance schmancy you could use a CMM if you have one.
Electronics Forum | Tue Mar 20 05:09:24 EST 2001 | zam_bri
How do we calculate number of board ( WIP ) at every stations for JIT lines. Inputs are welcome.
Electronics Forum | Tue Mar 20 20:07:29 EST 2001 | davef
I can't comment on the firm, but the approach is a good starting point for calculating your Kanbans is with capacity lot sizing http://www.synchronousmanagement.com/cls.html
Electronics Forum | Wed Mar 21 19:27:54 EST 2001 | Steve
In a true JIT system, there is no WIP, only raw materials and finished goods. (RIP is the raw in process.) In this type of system, you should only have one board at each work station, with possibly some assemblies in kanbans in between stations. Ev
Electronics Forum | Wed Jul 30 07:22:17 EDT 2008 | davef
Not sure what software you have, but somehow you must be accumulating costs by process and you probably know [or can figure-out] how many boards you processed. From this, you can calculate a standard cost of a process. Continuing, there is a thread,
Electronics Forum | Tue Aug 12 19:18:34 EDT 2008 | arminski
Hi davef, couple of questions: clarifying costing of direct labor against overhead cost: an operator loading PCB onto the reflow oven is a direct cost, how about the reflow process time of the PCB while travelling inside the reflow, is that an ove
