Would anyone care to share how they make a good hinge pocket? Mine look like...... sh!t.
Pictures would be appreciated.
Clay
Well Clay, I'm glad you asked. Hinge slotting is one of my favorite topics !!! (Un-huh) It's something that bugged me for years, but now, with the proper tools and technique, it's a piece of cake.
I was going to watch TV, but thanks to Eric V, I now have to edit pictures and write copy. Thanks a lot ! <g>
I have avoided the "Slot Machine" for one reason.....it makes slots that are too wide. The reason that I am concerned about this point, is that on transparent wings, I have seen semi-circles of oil that has soaked in around the hinges. For that reason, I try to make the hinge pockets only large enough for the hinges, and I always try to seal them with excess glue (I use a water soluble glue for installing hinges).
Once you have the proper tools, and use the proper technique, the hinging process can go along quickly, and you can end up with perfect hinge pockets.
Use what ever technique you like to establish the centerline position for the hinge slots. There are several devices on the market, and I have most of them....use the one that gives you the most accuracy.
There are several 'plunge forks' and 'digging tools' on the market. Try several and find the one that works best for you. Here is the important point.....THE TOOLS MUST BE SHARP!!! They are NOT manufactured this way...you must file and hone the tips until they cut the balsa easily.
The first photo show the 'plunge fork' establishing the ends of the hinge pocket. Again, you must hone this tool until it cuts easily.
After cutting with the 'plunge fork', the only thing left to form you hinge pocket is to remove the center section. Here's my secret: I cut (Dremel cutting disk, or simply snap the blade) an ordinary single edge razor blade to the *length* of the hinge pocket. Now, very carefully plunge cut both sides of the hinge pocket. (second photo)
Now, if you have make the cuts properly, the remaining balsa will pop out in one piece (third photo). Bingo, you're done. On to the next slot.
And the final results are shown in the fourth photo.
Again, the key to efficiently cutting hinge slots is the proper SHARP tools, and careful technique. Don't hesitate to fabricate your own tools, or modify commercial ones to improve their performance.
Give it a try....I hope this is helpful to some.
Cheers.
Warren Wagner