Electronics Forum | Sun Sep 25 11:18:16 EDT 2005 | CS
Hi! I'm facing a strange problem where PCB expanded in X & Y-axis after bottom-side reflow. When the PCB send for Top-side printing process, it is abvious that the printing alignment on the PCB's pads are out. With the problem mentioned above, I am
Electronics Forum | Sat Jul 08 02:10:31 EDT 2023 | unsung
Wipe down and clean the 2 Gold strips on Y Axis and the encoder ( located on both sides of the machines covers must be removed ) Probably has dirt happen to someone who had an old universal 2007 that was sitting outside in the open air for a few day
Electronics Forum | Mon Jul 10 13:08:21 EDT 2023 | ttheis
Thanks, I do recall reading about loading firmware onto some of the VME cards (VRM axis controllers I believe.) I will review this again. I agree that it seems to be some issue with reading axis position after hitting the home switch. The first thin
Electronics Forum | Mon Aug 31 16:48:16 EDT 2020 | aurash
I wish it was so simple :-) In their wisdom the machine designers choice was to have servo drivers with two channels (one channel less powerful and one channel more powerful) - so each card is driving a X motor and a Y motor.(the X axis is made of 2
Electronics Forum | Mon Aug 14 11:30:25 EDT 2006 | SWAG
We had centernest to I/O track alignment problems that were not predictable on 3000. Z-axis height seemed good with relation to I/O tracks but y was misaligned. Ended up replacing y-axis stepper and trouble went away. Also have had trouble with z-
Electronics Forum | Tue Sep 18 18:36:59 EDT 2001 | mparker
... and don't forget proper stencil alignment. Invariably I find most bridging problems for fine pitch parts, etc. is caused by lousy alignment. The alignment must be verified under magnification, using the naked eye is not good enough. Use at least
Electronics Forum | Mon Jan 14 19:22:54 EST 2002 | wsanita
The great thing about Mydata is the ability to put small strips of components on the Y-table. Takes only a few minutes to setup. I build mainly protos and small lots. The y axis is the table. The head is the x. Any problems you may have heard of were
Electronics Forum | Sun Feb 15 17:12:15 EST 2004 | brian bennett
as george says move beam back towards the centre of the machine make sure it is square although not neccesarily on the alignment arrows. make sure alignment laser is clean along with the recieving mirror on the head.also make sure the driver filters
Electronics Forum | Wed Apr 07 11:36:41 EDT 2004 | stefwitt
Your machine will have to have a reference position. From this reference position, you determine all other machine positions. If the camera is attached to the head, you could place a glass slug and measure camera-nozzle offset, by placing the slug w
Electronics Forum | Thu Apr 08 23:08:56 EDT 2004 | Ken
Well, the precision glass is for upward looking camera's. It essentially is a "perfect part". Vapor deposition lithography on glass (for Cte stability)....basically the part pattern (or part fids) is compared to its target location (same pattern on
