Difference between revisions of "Project:Captive Ring Turning"

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(*started* final gallery)
(Baby Rattle: more photos)
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File:captive rings 03.JPG|first step in pretty much any [[woodturning]] project: roughing
 
File:captive rings 03.JPG|first step in pretty much any [[woodturning]] project: roughing
 
File:captive rings 04.JPG|sketching the dimensions of the first elements: end knob, gap, ring (1/2 gap width), gap
 
File:captive rings 04.JPG|sketching the dimensions of the first elements: end knob, gap, ring (1/2 gap width), gap
 +
File:captive rings 05.JPG|after defining its outer curve with a [[Parting Tool|parting tool]] and then a [[Spindle Gouge|spindle gouge]], the future ring is slowly undercut with the [[Hook Tool|hook tool]]
 +
File:captive rings 06.JPG|burn marks are to be expected when using a [[Self-Made Tools|self-made tool]] for this job - just make sure you don't generate enough heat to crack the wood!
 +
File:captive rings 07.JPG|fast forward: two rings are cut! See "[[#Educative Failures|educative failures]]" above for more details on this part of the project
 +
File:captive rings 08.JPG|this part was a bit scary (not tested beforehand): "planing" the middle section with the [[Skew Chisel|skew chisel]] while the rings are taped to the side
 
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Revision as of 15:22, 13 July 2019

ProjectInfoBox

Captive Ring Baby Rattle

Captive rings - test13.JPG
Status: done, now adding photos
Release Date: March 2019
Initiator: Lukas
Materials Used: wood (apple log, self-dried), beeswax
Tools Used: woodturning tools:
Approx. Cost: next to nothing


Turning "captive rings" is a tricky technique, but tried by many woodturners at some point.

I taught myself how to do it in order to make a one-piece rattle for some awesome babies!

tl;dr

  • hard wood
  • patience
  • shape & sand as much as you can before "freeing" the ring
  • expect some burn marks

Choosing the Material

You'll need especially even-grained and dense wood for this project or the rings are prone to breaking.

I was very happy with the apple log I had laid aside for this project all along, but the birch and especially fir that I used as first tests behaved pretty badly.


Making the Hook Tool

First of all, I made the special tool needed to undercut the rings. There are commercial "ring" or "hook" tools available but I had seen DIY versions made from hex keys and obviously just had to try that!

Materials:

Educative Failures

lessons learned: wood too soft, piece too thin


lessons learned: wood still a bit too soft, parting tool much more suitable to define the ring width than spindle gouge, poor bevel on the hook tool, use even less force than usual


The second birch ring turned out a lot better than the first so I decided to get serious!

Baby Rattle

more coming soon!