Rounding Plane / Dowel Maker attempt

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Blog series by llwynog updated 03-06-2012 05:14 PM 4 parts 109837 reads 31 comments total

Part 1: Wooden body

02-15-2012 09:23 PM by llwynog | 12 comments »

I own a die and tap to thread wood but the diameter is 3/4” and this is a dowel size I can’t find locally.I have thus decided to try and build a rounding plane / dowel maker to create my own 3/4” dowels. A rounding plane is is like a giant pencil sharpener with a cone shaped inlet and an outlet bored to the exact size of the desired dowel.I never held such a tool in my hands and the only ressource I have is an old Fine Woodworking article I remember which gave 2 guideline...

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Part 2: The blade

02-16-2012 09:49 PM by llwynog | 12 comments »

I am back with a new update which brings us to the current state of the project.First of all, thanks to everyone who shared their interest on this experiment.As I basically make it up as I go along, any advice, past experience or actual tool description is very welcome. I did not have a spare blade lying around so I bought a cheap (still it is high carbon steel and appears to hold an edge decently) block plane blade. I chose a block plane blade as the metal is thicker than many bevel down ...

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Part 3: Tool making gone fractal + finishing the blade holder

03-04-2012 08:13 AM by llwynog | 3 comments »

If I ever succeed in making a usable rounding plane, it will be a tool to be used with a tool to make a tool.The rounding plane makes a dowel, which is used with a wood die to shape a thread in order to make a clamp such as these Then it got convoluted when I realized that I needed yet another tool to be able to recess the blade into the blade holder somewhat accurately.As I do not own a router plane and as I did not wish to use my electric router, my ...

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Part 4: Test run with first prototype

03-06-2012 05:14 PM by llwynog | 4 comments »

Now that the first prototype is finished, here are the results of the test run: Adjusting the blade itself was easy enough : just tapping the blade a little at a time until it cut enough for the finished dowel to go through the exit hole. I also had a little tweaking to do on the body for the blade to cut properly: I used a small rounding plane and some files to straighten the cone shape (remember how it was slightly crooked at the junction between the cone and the exit hole?). I al...

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