Electronics Forum: 3 roll mill (Page 1 of 16)

Router bit for cutting aluminum PCB

Electronics Forum | Sat Jul 23 01:51:04 EDT 2022 | poly

You'll find a lot of guides for cutting aluminium on the internet but basically, try and use a bigger end mill if you can, keep it at the right speed (not slower). We cut 1.6mm aluminium with a 3mm end mill. Smaller end mills didn't evacuate the chip

Rigid - Flex Depanelising

Electronics Forum | Tue Jan 12 10:28:23 EST 2016 | swag

Very cool - we're looking at 3D, too. I spend so much time designing then tweeking so it can be run on a 3 axis mill. 3D would make it easier! Good to know about laser, too. I always wondered the realities of it.

Re: Continuous Flex Circuits

Electronics Forum | Tue May 11 10:13:48 EDT 1999 | Deon Nungaray

| Where can I get information for manufacturing flex "like" circuits continuously or in a roll to roll or reel to reel manner? | You might want to contact 3M electronics division. They might be able to help you.

Flex PCB Assy

Electronics Forum | Tue Mar 01 10:04:21 EST 2005 | Rob

We used durastone pallets, where you mill out the profile of the panel or board and it sits flat for printing. We secured them using 3M spray mount (for singled sided) and Kapton tape. Obviously helps to have bottom side heating in the oven as you

DEK265

Electronics Forum | Mon Jul 03 03:42:32 EDT 2006 | teera

hello, pls check below item for paper stucks: 1)paper rolls diameter not over 60MM(new roll) 2)tension for roller clutch(silver u.s.c only) 3)make sure the under screen cleaner ROUGH ROLLER is clean and free for solder paste.so that it can turn smoot

PCB Depaneling Router

Electronics Forum | Tue Feb 26 19:24:22 EST 2008 | swag

We're in the market for a new depaneling router for high volume flex circuit builds. I have no experience with them. At this time, we do all our low volume stuff on a 3-axis mill. Any advice on what to consider and some recommendations of the best

Flex board pallet

Electronics Forum | Thu Jul 27 12:30:37 EDT 2006 | Rob

Hi David, we used the following techniques in high volume production, depending on the type of flexi-board: (all were in milled pockets in a durastone pallet) 1) Kapton tape top & bottom 2) Spray mount & samll amount of kapton tape (you only had

Quad 4C placement offset

Electronics Forum | Thu Jul 06 08:16:53 EDT 2017 | claudea2

Hello, I have 3 Quad 4C one with Quad Align and 2 with the older lasers. All 3 machines have a placement offset issue. Every 4 or 5 boards one of the machines has a placement offset of about 10-20mills in one direction. A reset usually brings it back

Stamping SMT assemblies

Electronics Forum | Wed Feb 02 14:55:34 EST 2005 | JB

We have used small hi temp labes, that are placed on our panels, boards before reflow. Each operator has a roll of labels with an assigned number. 4 operators, label 1, 2, 3 and 4. It worked well for us.

Please help me identify this diode

Electronics Forum | Tue Jul 17 04:16:02 EDT 2007 | jasondmx2

It's a small diode with orange core - has a blue kathode stripe it reads "3" then as you roll it over it reads "2c" That is it. I really would appreciate any help in identifying this diode and understanding the coding method used on these diodes. Th

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