Woodworker's Journal 1983-7-4, страница 18

"I was convinced that no other machine could match its quality or versatility.'*

Simplicity, qualm and precision art* combined in this woodiliming lathe to give von tlie results you exjxTt from HEGNKR tools.

TheHEGNER Lathehasa 15 3 4 "swing. The37" Duplicating Attachment available lor the HEGNER Lathe is without match in terms of precision, quality, and ease of operation. It is mounted on the back of the lathe and allows you to duplicate from an original turning oi from a template. Send fur complete information today. AMI 1 j<T. rP.OT Box 5285-J57 Wilniington.^_DF. 1 §808 Phone: (302) 999-9139

□ Please send me your free brochure on HEGNER saws and on the new HEGNER Woodworking; Lathe.

□ Also send me information on the world's finest workbenches, made in Switzerland by LACHAPPELLE.

□ 1 enclose $5,00 Please send me the pattern for (he 10" Sjiott Auto shown in the photo above.

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Restoring Antiques

by John Olson

Some Spraying Techniques

It is very difficult to do a satisfactory job when using a brush to apply most modern clear finishes. From my point of view, brushing should be used only as a last resort. Properly applied with a spray outfit, such problems as sags, runs, brush marks and the like are absent.

The first step is to make sure your spray equipment is clean and operating properly. Check the tank and scrubber waste cocks for water and oil. Any of either in your final finish can cause a lot of trouble. Avoid using any kind of silicon lubricants on the gun or the compressor. Silicon compounds cause fish eyes that are very difficult to repair. Don't apply clcar finishes at more than fifty pounds air pressure. Higher pressures are likely to cause ripples and make applying excess finish very easy.

Try to arrange the work so that the surface being sprayed is horizontal or nearly horizontal. This position will eliminate sags and runs and allow the wet finish to level. If possible, dismantle the piece to be sprayed. Finish each piece separately but at the same time as the others using the same material, mix, viscosity and air pressure.

Temperature is also important. Most clear finishes become viscous at temperatures of less than 70 degrees. Viscous material will not flow and level. If it is absolutely necessary to spray at a lower temperature, the material being sprayed should be thinned until it vaporizes and comes out of the gun in an acceptable manner. However, highly thinned material has a tendency to dry to a duller than acceptable sheen and to display an uneven splotchy appearance. It's better to wait until things warm up.

When spraying a fiat horizontal surface hold the gun about 8 to 18 inches from the work. It is necessary to experiment to find the best distance for a particular combination of gun and the material.Begin at the edge nearest you and spray with the grain. Work from right to left or left "to right on the first stroke, whichever feels most natural. On the succeeding stroke return in the opposite direction covering the area just above the first. Overlap each stroke approximately one third of the last strip. This overlapping is necessary to produce full coverage as the edge of the spray pattern feathers out and has little covering ability near the edge of the pattern. When carrying the gun along each stroke, hold it as near to right angles to surface being sprayed as possible. On horizontal surfaces this will be approximately 45 degrees.

It is important to maintain the same distance between the gun's nozzle and the surface being sprayed. Everyone has an initial tendency to swing the gun in an arc so that the beginning and end of each stroke finds the gun's nozzle further from the surface than it was when it passed the middle. Consequently more material is deposited in the middle than at the ends of the stroke, resulting in uneven coverage. When the edge of the surface is reached the stroke must be carried beyond this edge before the gun's trigger is released. The reason for doing this is to prevent flooding the surface when stopping to come back again. Edges should be lightly and rapidly sprayed before the main surfaces are covered so as to prevent flooding the main surface.

Vertical surfaces are best sprayed by beginning at the top and working downward. Slant the gun down so as not to splatter the sprayed surface above. Decorative carved edges, recessed panels and similar constructions should be sprayed rapidly and evenly with the gun pointing away front already sprayed surfaces. These edges will have already received some spray as the adjoining surfaces were covered. The object here is to touch up without flooding the already sprayed surfaces. \VC\J

The HEGNER Universal Precision Saw has, as the editor of WOODWORKER'S JOl'RNAL wrote, "propelled (its owners) into a new world of scroll sawing."

Both the Polymax-3"«and M ultima x-2"* will let you saw the most intricate patterns accurately, quickly, without any relief i uts and without major sanding.

A cusiomei recently wrote: After seeing your saw in action tat the 'H2 Chicago Excellence in Woodworking Show) 1 was lomiim-il thai no inlin iilk little i (mid tnait h lis utialtiv or versatility."

The Sport Auto shown at right was made from wood st raps and is just one example of liow HEGNER saws can !*■ put io use for pleasure or loi profit,oi for both.

W hen it comes to scroll sawing, there is only one name to look for—IIEGNER.

And now. the excellence of 1 IEGNER design and manufacture surfaces again. We are proud to introduce tlu new

39" HEGNER Wood turning Lathe.