Electronics Forum | Fri Mar 16 07:22:50 EDT 2007 | cyber_wolf
I am not sure what the smallest aperture is that I have. I can tell you that I remember the area and aspect ratio (for apertures) being quite a bit lower than standard on quite a few stencils. We only order Invar on stencils that fall below ratio..
Electronics Forum | Wed Mar 07 07:08:30 EST 2007 | Rob
They are very long with lots of feeder positions & have a fast tape loading mechanism. They are also easy to use and upgrade, and are cheap on the second hand market. However, on the flip side they are slower (the hydra figures are just dreaming as
Electronics Forum | Thu Mar 08 08:45:51 EST 2007 | Rob
Thats the drag - feeders don't come for free. Also depends on your budget - if you buy a good machine from the off then you can always add extra feeders over time & as your budget allows, however if you start with a ok machine and lots of feeders y
Electronics Forum | Thu Mar 08 16:17:59 EST 2007 | stepheniii
Your process makes a bigger difference than the machine. I worked for and OEM with Panasonics. They eliminated all 5% resistors, wider tolerance capacitors, and went with as many dedicated feeders as we could. We also staged jobs. We had one runnin
Electronics Forum | Thu Mar 08 17:44:46 EST 2007 | gregp
The next advancement is Dynamic Changeover. The Contact Systems C5 machine is the only machine you can actually set the next job up on while another job is running. This is due to high feeder capacity and feeders that can truly be removed and repla
Electronics Forum | Mon Mar 12 14:25:49 EDT 2007 | Grant
Hi, From what I can tell the guys who still use these CP8 machines are in China, where they run incredibly complex stuff all day, and don't change over as much. Doing computer motherboards etc. I visited some of the factories, and they had over 20 l
Electronics Forum | Tue Mar 20 15:59:15 EDT 2007 | blnorman
We use preprinted labels and laser coding. For PCB we laser mark with CO2 (NdYAG for the aluminum heat spreaders). We either have an epoxy legend to burn out or we burn the solder mask to expose the copper ground plane underneath. Laser is a much
Electronics Forum | Tue Mar 27 18:37:10 EDT 2007 | gregcr
I'm actually in the process of phasing in direct inkjet marking on my bare boards. The MEK based inks dry almost on contact, and the machines I have use a videojet excel HD printhead. I'm looking forward to see how it works for us. I think it may
Electronics Forum | Thu Mar 08 12:17:03 EST 2007 | cyber_wolf
Hi, I am taking a survey. How many CP6/CP4 feeders should an experienced technician be able to calibrate and PM in an 8 hour shift ? Exclude major repairs. Just cleaning,lube and calibrate. We have implemented a full time feeder technician and I wa
Electronics Forum | Thu Mar 08 16:47:26 EST 2007 | aj
A full time feeder technician - who would do such a job full time ? You would be better off implementing daily PMs for the machine operators & give them the responsibility of looking after them. Get your technician to be responsible for introducing
