Electronics Forum: jerry (Page 9 of 39)

Fuji CP6 back-up pins

Electronics Forum | Thu Aug 25 14:41:06 EDT 2005 | jdengler

The height varies with board thickness. The top of the board is always held at the same height so as the board thickness increases the pin height decreases. Jerry

Servo Alarm on FUJI IP-2 (MTU unit)

Electronics Forum | Thu Sep 15 16:02:20 EDT 2005 | jdengler

Over Current means the motor is drawling too much current. Check for a jam on that axis, bad wire, bad motor, bad servo amp (yes the amp can go bad and make it appear that the motor is drawling too much current). Jerry

Flex circuit

Electronics Forum | Fri Sep 23 08:35:05 EDT 2005 | jdengler

I agree with the local fids concept. This is usually a problem since the flex will most likely not have fids. However if your components are 50-mil pitch and 1206 or larger, you could use tooling holes to align the flex circuits when they are attach

Draining a Solder Pot-

Electronics Forum | Wed Oct 05 08:42:59 EDT 2005 | jdengler

Just be prepared! Once you open the drain you may not be able to stop the flow. Be sure that you get as much as possible out then have several pans empty and near by. On some pots it will look like there is very little left but you don't see it a

Servo alarm X2-axis (FIP-3)

Electronics Forum | Tue Oct 11 08:54:18 EDT 2005 | jdengler

-Are you running a program that worked before or is it a new program? -Is there any reason to suspect that the proper has been edited between working and error condition? Jerry

Servo alarm X2-axis (FIP-3)

Electronics Forum | Tue Oct 11 15:30:28 EDT 2005 | Dave

Hi Jerry, I thought the same so tried running other programs that are known to work on the IP-3 but still no joy. I shall try Alan's suggestion with cleaning the linear scale and see what happens. Thanks!

Cycle Time Estimates

Electronics Forum | Fri Oct 21 09:03:32 EDT 2005 | jdengler

Why don't you estimate a board, then do a time study when you actually build the board to see how accurate the estimate was. This works very well in convinceing someone how accurate you are. Jerry

Use of solder paste after taking out from cold storage

Electronics Forum | Thu Oct 27 08:38:04 EDT 2005 | jdengler

Simply leave the paste out at the end of the shift for the next days use. Keeping the paste refrigerated just prolongs the shelf life. Even if you are at the expiration date leaving the paste out for 36 hrs won't make any difference. Jerry

Library for all SMD packages with dimensions

Electronics Forum | Mon Oct 31 08:47:27 EST 2005 | jdengler

IPC-7351 is the most complete I have found but is still missing some. Look here http://www.ipc.org/contentpage.asp?Pageid=4.6 Jerry

Reflow soldering of 208-RQFP-0.5mm

Electronics Forum | Mon Oct 31 09:18:43 EST 2005 | jdengler

If the board is HASL you may always have trouble. Try to reduce the amount of paste by either reducing aperture size of stencil thickness. Jerry


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