Electronics Forum | Wed Jul 20 08:30:21 EDT 2005 | davef
Most of these chemical swabs were developed to assess solder used in water supply piping. So, they are a really broad, gross test. If they tell you there's lead, there's probably lead, otherwise you're just guessing.
Electronics Forum | Thu Jul 21 08:58:48 EDT 2005 | Rob
Hi, Has anyone got any experience with Lead Check or any other type of swab system for checking the presence of lead on a component or assembly? http://www.leadcheck.com/CircuitBoard.shtml Cheers, Rob.
Electronics Forum | Tue Aug 09 09:23:57 EDT 2005 | Rob
Cheers Dave, Our quality department is now reviewing them. In the meantime there's a company down the road that charges the equivilent of $20 per sample. Thanks again, Rob.
Electronics Forum | Wed Aug 03 14:17:28 EDT 2005 | GS
What about PCB construction?: - CEM (2-3....)? FR4 ?....? - how many layers - what about TG ? GS
Electronics Forum | Wed Jul 27 08:33:38 EDT 2005 | siverts
1 Gallon (US)= 3.785412 liter (l). 1 Gallon (UK)= 4.546092 liter (l). Which one of them are You looking for? Why do need to convert from volume to mass?
Electronics Forum | Wed Aug 03 04:04:52 EDT 2005 | Base
Coz' in 10 years we'll all be out there fixing second hand overdue space shuttles and we do want to be weightless, but certainly not massless... (do we think EC got his answers yet?) Greets, an overmass SMTnet forum reader
Electronics Forum | Fri Aug 05 03:11:28 EDT 2005 | ajaydoshi
1. if you measure weight with same weighing scale it will be same irrestpective of temp / place. 2. But weight will be relatively different based on loaction if you compare from your present location. 3. if you check weight at moon respect to your lo
Electronics Forum | Thu Jul 28 08:12:38 EDT 2005 | jh0n!
That's pretty much what I figured - just wanted some external verification if possible. And don't so much as BREATHE that around here. I'm just waiting for engineering's *next* bright idea. ;)
Electronics Forum | Thu Jul 28 08:02:09 EDT 2005 | stepheniii
Check the pick postion in the feeder. If the nozzle is picking at the edge of the component, it could flip it. BTW what kind of machine are you using? Stephen Olan
Electronics Forum | Thu Jul 28 08:02:39 EDT 2005 | bobpan
When we see the upside down part problem its typically feeder related....either the feeder is making the part jump or the z is taught tooooooo deep causing the part to jump before its in its pick location. chow