There are many different lathe tools on the market and I seem to want them all! I have found that each manufacturer has a different style handle; I guess it is like a signature to them. I don’t really like the fit of most handles in my hand as they seam to be either too big or too small so I decided to make my own. Not knowing how it would come out, I was afraid to disassemble one of my tools for an experiment. So, I decided to make the whole tool instead. I have been lusting after one of the “Multi-Tip” scrapers because it seems that this one tool could do the job of many but the problem is its cost. This tool sells for $72.00 in my area. Now I own many tools from this manufacturer and have absolutely no complaints about the quality or value as a general rule but in this case they priced themselves out of my money. It is also a good way for me to spend a Sunday out of my wife’s hair.
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The components I gathered together are as follows:
1 ½ X 1 ½ X 13” Quarter Sawn White Oak blank (because I had it)
½” X 36” Round Rod, Zinc Plated.
1” Copper pipe strait connector.
Tap Handle maximum ¼” Tap
Irwin #80220 10-24NC Tap with matching #25 Drill Bit.
Cutter Bit for Multi-Tip Scraper.
#10 Brass flat washers
Stainless Cap Screw #10-24 X ½”
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The first thing I do is to cut the rod down to size. I cut it at 9 ½” as this will give me 6” of tool and 3 ½” of tang. Now there is probably someone much more knowledgeable than me on lathe tools that is reading this with a grimace but since this is my first homemade tool this size sounded good.
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The next thing to do is to measure the cutter at its widest point as this cutter is made to be rotated. I also have to consider that this tip is an odd shape and will have to hang over the rod in any position.
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Once I know how far to go I start thinking about how deep to grind. Since the Cutter is 1/8th of an inch thick I think that is how deep I will grind. The important thing here for me is that the surface I am grinding is perfectly flat or the bit could have a tendency to chatter. I also decide to round the tip and remove the sharp edge.
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I set the round stock into the drill press vice and lock it in making sure it is level and 90 degrees to the bit. I have marked the coming hole to where the bit will extend past the rod no mater how it is rotated and is still far enough back for strength.
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I then begin to tap the hole remembering to apply some cutting oil and only turn a quarter turn at a time before backing out. This clears the tap of shavings and is very important because the last thing I want to do at this point is break a tap. Now I check the screw and make sure it runs true and strait.
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Time for a test fit of the bit. Everything looks very good with a nice flat fit with little to no sloppiness.
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To do all the grinding on the rod I used my trusty old Ryobi side grinder with a cutting wheel. Not only does this take off the metal quicker but lets me get a nice flat surface on the round rod. As you can see from the picture I put a slight taper on the tang but did manage to get in a hurry and get the steel too hot. This should not be a problem since it is so far down on the tang. Yes, I know I need a new wheel on the grinder; I have had this one on there through many projects now.
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