Rotated Home Base creation for SMT Stencil (on a circular PCB)

Posted 3 months ago by Simon Garrison

Post a topic

Simon Garrison Admin

Thanks again for sending the sample file.

Note: When SMT pads are drawn with a series of lines or hatch patterns, my first recommendation would be to convert pads to Polygons (i.e just the outside boundary). Use either command, menu: Tools > Convert To > Polygon or menu: Tools > Merge Objects..

Here's a tutorial video (no sound) showing me perform Homebase Pad conversion using FAB3000,

https://numericalsoftware-update.s3.us-east-1.amazonaws.com/tutorials/2025-08-28_22-40-56-rotated-pads.mp4

Here's the basic steps I performed in the video:

1. Select Pad-Pair (consisting of 2 polygons) and go to Homebase Pad Conversion.

2. Review the Homebase Pad settings. Make sure to set Search to 0.01 Degrees (so FAB3000 looks for those rotated matches every 1/100 degree).

3. Convert to Homebase.

Pad size-compensation - suggestions:

Homebase Pad Conversion has a Compensation setting (which alters the pad sizes).
Etch Factor command also can enlarge/reduce any object sizes. (Menu: Fabrication > Etch Factor)

Thanks again!

Best regards,

Simon

0 Votes

0 Comments