STARTING TO WORK

This finishing sander has been designed for one or two hand operation, and can easily be guided over the work surface. The normal weight of the machine is sufficient for efficient sanding. Putting additional pressure on the machine only slows down the speed of the pad, reduces the sanding efficiency, and puts an additional burden on the motor. Also, additional pressure might cause the sander to “jump”. Always start the machine before placing it on the work surface. Once it has started, ease it down on the work surface evenly and move it slowly back and forth in wide, overlapping arcs. When you are through sanding, lift the sander off of the work before stopping the motor.

WORKING PROCEDURE

The action of the Porter-Cable Finishing Sander causes thousands of tiny abrasive grits to move in circular orbits against the work at high speed. Each grain moves in the same direction at a constant speed so the cutting action is uniform over the entire pad surface. Crossing and re-crossing of the abrasive grits from all directions quickly levels surface irregularities to a fine, uniform smoothness. Start the work with an abrasive grit just coarse enough to remove the high spots and excessive roughness. Follow with a second sanding using a grit one or two grades finer. Continue with successively finer grits until the desired finish is obtained. DO NOT GO FROM A COARSE GRlT TO A VERY FINE GRIT IN ONE STEP. Swirl marks will be impossible to remove.

REQUIREMENTS FOR FINE FINISHING

In general, the coarser grits remove the most material in the shortest time. The finer grits produce a smoother finish. By selecting the proper type of abrasive, your workpiece can have a very smooth and even finish.

REMOVING PAINT AND VARNISH

Read and follow instructions in “ADDITIONAL SAFETY RULES FOR PAINT REMOVAL”.

Your sander will do a good job of removing old paint and varnish if you follow these two instructions. First, use a coarse, open-coat abrasive to avoid the usual clogging of the abrasive surfaces. Second, keep the machine moving over new areas to avoid heating and softening the material being removed. Try to work the entire surface at the same time by working in wide, overlapping arcs. Do not concentrate on small areas. If liquid removers or heaters are used to speed the work, be sure the surface is cool and dry and the excess material has been scraped away before using the sander.

CABINETS AND DOORS

The orbital motion of the Porter-Cable Finishing Sander is ideally suited for finishing doors, cabinet fronts, and other workpieces where wood grain is perpendicular to that of a joining piece. Since the motion is circular, the machine may be moved in any direction and crossed from one part to the other without regard to direction of grain. A uniform and smooth finish will result on both parts. The same procedure may be used to even joints in cabinets The sander may be worked on both sides and in all directions to obtain a smooth matching joint. By properly changing from coarser to finer grit abrasives, you can achieve an excellent finish.

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Porter-Cable MODEL 505 Starting to Work, Working Procedure, Requirements for Fine Finishing, Removing Paint and Varnish
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MODEL 505 specifications

The Porter-Cable Model 505 is a versatile and robust woodworker’s tool that has become a staple for both amateur and professional craftsmen. This models also offers several features and technologies that enhance its performance and usability, making it an essential addition to any workshop or job site.

One of the standout features of the Model 505 is its powerful motor. Designed with a 5 amp motor, it delivers consistent performance while handling various materials with ease. The motor operates at a no-load speed of up to 21,000 RPM, allowing for efficient and precise cuts. This power makes it suitable for a wide range of tasks, from crafting intricate joints to creating clean edges on larger projects.

The Model 505 includes a unique plunge mechanism that allows for seamless depth adjustments. This feature provides users with the ability to quickly set the desired depth of cut, improving both accuracy and efficiency. The precision depth adjustment enables woodworkers to work with varying thicknesses and types of wood, ensuring they achieve the desired results every time.

Another notable technology incorporated into the Porter-Cable Model 505 is its dual rack and pinion system. This system enhances the stability and accuracy of the tool during operation, minimizing the risk of wobbling and enhancing the overall cutting experience. As a result, users can expect smoother cuts and cleaner finishes, which are crucial for professional-quality projects.

The design of the Model 505 is user-oriented, featuring an ergonomic handle that reduces fatigue during prolonged use. Additionally, its lightweight construction ensures that the tool can be easily maneuvered without compromising on power. The easy-to-use blade release and changing mechanism further streamline the workflow, allowing quick transitions between different blades for varied applications.

Safety is also a paramount consideration in the design of the Model 505. With features such as a dust blower that keeps the cutting area clear and an integrated spark guard, users can operate the tool with added confidence. These safety features ensure that operations are not only effective but also secure.

In conclusion, the Porter-Cable Model 505 is a feature-rich, reliable tool designed for woodworkers seeking precision, performance, and safety. Its powerful motor, plunge capability, and ergonomic design make it an excellent choice for both hobbyists and professionals. Whether creating joints, trimming edges, or intricate decorative work, the Model 505 stands out as a dependable ally in any woodworking project.
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