Electronics Forum | Fri Mar 29 06:54:44 EDT 2019 | jacoblemaster
I am new to the community and do not know where to start.
Electronics Forum | Thu Mar 21 13:00:50 EDT 2019 | SMTA-Todd
I am looking for a good way to estimate assembly times per board. We currently use an engineer who looks at the BOMS and gerbers, but are looking for an alternative. Any formulas or software recommendations would be helpful.
Electronics Forum | Thu Feb 07 09:07:10 EST 2002 | fmonette
Dason, Please be aware that weight gain is only a very crude estimate of the component moisture content. This is only accurate when the moisture is uniformly distributed inside the component (which is actually never). This measurement is usually no
Electronics Forum | Wed Feb 19 09:15:28 EST 2020 | klofgren
@Evtimov My company only recently got our SMT line operational and are just starting to estimate PCBA time. I just wanted to clarify, it seems that your formula will boil down to the number of panels multiplied by the bottleneck operation. Is there
Electronics Forum | Thu Feb 20 08:58:43 EST 2020 | klofgren
I'm mostly looking at the time so that I can schedule. Basically I'm looking at running 1000 panels of project A and then 500 of project B. I have a limited time to get a portion of both A and B to the customer. What I am trying to confirm is whether
Electronics Forum | Wed Feb 19 16:26:35 EST 2020 | stephendo
IPC tried to develop a standard to compare machine throughputs. The machine placement times are usually based on very few components with optimum feeder placement and a very large array of placements. Real life boards are rarely like that. Once I wor
Electronics Forum | Thu Feb 20 13:29:22 EST 2020 | rgduval
If you've already run both projects on your machine, then it should be as easy as taking the run-time info out of the machine for the two projects, and adding them up. I'd round up and buffer, but, I always do :) Every PnP machine I've ever worked
Electronics Forum | Wed Feb 19 12:47:15 EST 2020 | emeto
Grandpa, You got it - Identifying the bottleneck operation is the key. The secret is to design a tool can predict accurately where this bottleneck is. In your formula you can use machine process time, PCB transportation time, part trim time, part in
Electronics Forum | Thu Mar 21 16:50:10 EDT 2019 | emeto
Hello, I've done it before in Excel and it is a very simple concept. Inputs are board size, numbers of SMT and TH process sides, number of SMT and TH placements per side, boards per panel and quantity of boards to be produced. Output will be calcul
Electronics Forum | Fri Mar 22 12:29:25 EDT 2019 | unisoft
Unisoft ( http://www.unisoft-cim.com / 203-913-0782 ) has software that should help. Here are some links: *** Assembly Cost by Component Span Report for Quoting *** Assembly Cost by Component Span Report for Quoting http://www.unisoft-c
