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Category Archives: Process
Two More Plastics for Pawls
Someone brought Ertalyte and Ertalyte TX to my attention as possible materials for pawls. The data sheet properties looked promising, so I bought a small quantity of each and made pawls. I tested these on the low speed tester, as … Continue reading
Posted in Materials, Pawl, Testing
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Pawl Wear Test, Higher Speed
My original pawl wear test (post of Nov. 16, 2010 ) used a gearmotor that ran at 20 rpm. The wear pattern on a pawl showed an impression on the flank of the pawl where each ratchet tooth initially made contact, … Continue reading
Posted in Pawl, Testing
3 Comments
Anodizing Problem
I have machined and sanded all the aluminum parts for 5 reels, but have been putting off the anodize process. It’s boring, 1 hour per part, 7 parts per reel. Today I finally started. The first part, an S-crank, came … Continue reading
Posted in Anodizing/Plating
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Metal Finishing
When I made my first reel, I used wet/dry sandpaper to remove tool marks on the aluminum parts. On lathe parts such as rings and spool ends, I started with 320 grit and progressed through 600 and 1200 and ended … Continue reading
Posted in Abrading, Process
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Parting
Parting, or lathe cut-off, is the operation of sticking a narrow blade straight into a rotating part, and (hopefully) making a continuously deeper groove until the part drops off of the chucked rod stock. A Google search on “lathe cut-off” … Continue reading
Posted in Cutting, Tools, Turning
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Pawl Wear Test, Redone
Refer to earlier posts titled “Results of Pawl Wear Test” (Aug 2010) and “The gearmotor that wasn’t a gearmotor” (Sept 2010). After discovering a possible misoperation of my first pawl test fixture, I built a new tester using a real … Continue reading
Posted in Click, Pawl, Testing
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Turning a Crank Counterweight
The counterweight on my reel crank has hemispherical shape. Sherline sells an accessory that turns spherical shapes, and it is just what you would need to make more than a hemisphere. But I have found that I can get by … Continue reading
Posted in Crank, Turning
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Milling an S Shaped Crank
My first design for the reel crank (here in brass) was too “heavy” in the middle. So back to the drawing board. Here I have reduced the diameter of the center circle, and moved one small inside radius to make … Continue reading
Milling a Reel Foot
There is a standard for the shape of a reel foot, and I observe it to a reasonable degree. To hold the stock for initial sizing and drilling, I have made vise jaws with rabbets. The standard calls for an … Continue reading
The gearmotor that wasn’t a gearmotor
First of all, I must say that the pawl test data that I previously posted (Aug. 22, 2010 : Results of Pawl Wear Test) cannot be relied upon. I now realize that the “gearmotor” that I used for this test … Continue reading