1. Aug 16, 2023 #1
   

   Graeme Full Member

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   Have access to a 3D printer?
   Then this Track Laying Compass & Track Shaping Tool may be of use
   https://www.thingiverse.com/thing:4666362

    
2. Aug 16, 2023 #2
   

   paul_l Staff Member Administrator

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   nice find

    
3. Aug 16, 2023 #3
   

   gormo Staff Member Administrator

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   Very good ......
   I believe the correct term for this instrument is a Trammel
   There are various ways that you could make one, I made one from a one metre long metal rule with holes drilled in it at various radii.
   Another example below
   
   
   Gormo

    

   Echidna likes this.

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