Basic Masking & Fixture Tips from Pete Sorenson
Pete Sorenson has spent 42 years teaching technology classes to High School students at Lake Washington High School, Kirkland Washington as well as the greater Kirkland Washington area and the Rainier School District in Rainier OR. Currently, Pete is one of three Education Specialists with McNeel & Associates who actively run technology workshops educating teachers on the use of CAD/CAM technology including the Rhinoceros CAD (Rhino) drawing and modeling program.
For the one-off and limited production environment of home and education workshops Pete suggests using blue masking tape and super glue to hold wood blocks to the fixture board on the milling table. If the block will be painted after machining, Pete also uses ORACAL Oramask 813 Stencil Film to mask the top of the stock prior to machining. Below is an example of this procedure.
In the above example, Pete covers the top of the stock with ORACAL Oramask 813 Stencil Film and the bottom is attached to the milling table with blue masking tape and super-glue. This combination along with the 2-flute down cut ⅛” diameter flat end Mill (from 2Linc.com) placing consistent down cut pressure on the stock during machining.
More about Pete Sorenson
Pete Sorenson is a retired High School technology instructor from Kirkland, Washington. Currently, Pete is one of three Education Specialists with Robert McNeel & Associates in Seattle, WA performing Rhinoceros CAD and Rhino plugin workshops for educators at all levels. Pete has been a RhinoCAM user since the product’s release in 2002 and runs his own shop providing CNC services for an exclusive list of clients including Eastside Tooling.com.