Electronics Forum | Tue Feb 26 10:27:12 EST 2008 | hegemon
We have both DRS24 and DRS25 here. I think you will be much happier with the DRS25 as the underboard heating is superior, of course after a year of using the 25, it has its caveats as well, though minimal. I was a little surprised that you are havin
Electronics Forum | Mon Feb 25 11:12:32 EST 2008 | hegemon
It sounds more as though you have a profiling problem primarily, however, if your placement is not square to the board, then you should get your machine setup correct first. After that you can get to the profiling. If the BGA is brought up to tempe
Electronics Forum | Wed Mar 06 21:19:10 EST 2002 | davef
As an alternative, consider: * Asking your operators. * Having your operators keep logs and checking them with hands-on time studies.
Electronics Forum | Wed Mar 06 06:47:00 EST 2002 | francoiscal
Hello, Does any one as a database regarding component assemble by hand on a PCB. More accuratelly how much time (per sec) does it take to bend leads on a component(res), time to insert the component by hand, time to solder by hand. Any time base dat
Electronics Forum | Thu Mar 07 02:33:44 EST 2002 | cmay
I agree with Dave. The only reliable way is to perform a time study using a watch with decimal minutes. Setup the study using an average rated operator and time 10 component insertions (from pick up to hands off), time 10 component soldering operati
Electronics Forum | Wed Mar 06 12:14:34 EST 2002 | caldon
We would benchmark our times with the most experienced operator and them boost the time by 1/3. Example: If it takes Mary 3sec to insert the component, 3 secs to clinch and cut the leads (it is not advised to cut the leads after soldering), and 8 sec
Electronics Forum | Wed Jul 17 09:40:33 EDT 2013 | proceng1
I have a CM project that is a single sided pcb (not plated thru holes) and I have 3 axial resistors that the Customer wants placed on the "solder side" of the board. I cannot find an IPC-A-610 reference to putting parts on the wrong side of a single
Electronics Forum | Wed Jul 17 10:22:15 EDT 2013 | rgduval
Sure. Section 7.4 covers unsupported holes, and defines the usual standards. Clinching, fillet on the plated side, lead protrusion, etc. Cheers, ..rob
Electronics Forum | Wed Jul 17 10:22:36 EDT 2013 | ericrr
argh! the 6 ends of the resistors soldered to another though hole part to give the pcb track mechanical strength or are they just soldered to a remote pad, so if the resistors are knocked it has the possibly of ripping the track from the pcb.
Electronics Forum | Wed Jul 17 10:25:52 EDT 2013 | proceng1
The parts are just soldered to the pads. There isn't another part on the opposite side if thats what you're asking.
