Cutting a new Former

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  • Last Post 25 January 2024
Chris posted this 24 November 2023

My Friends,

We have shown many ways to fabricate Formers for Coils. 

  • 3D Printing Formers, but its a slow process.
  • My favorite method is using by budget CNC Machine to cut Formers.
  • Even gluing fiberglass sheets together has been covered at one point!

 

CNC, Computer Numerical Control, is an amazing way to Machine Parts! The hard part, for most, is the CAD, Computer Aided Design, which takes some time and patience to get a grasp of! This is an amazing Technology, using the Cartesian Coordinate System to fabricate Parts in 3D Space!

Here is a short video, showing part of a CNC Cut to fabricate Formers:

 

As I have shown you all before, I have used this method for sometime now:

 

All Former Designs should be planned and thought about in as much detail as possible! Remember Coil Geometry is Important!

Best Wishes,

   Chris

Tinker posted this 25 January 2024

Hi guys,

I found this thread and thought I'd share. I have a Snapmaker (3 in 1 - 3D print, Laser and CNC). I've seen a lot of spools being printed in PLA (3D printer) and although these work out great the long print times are a bit of a pain.  Today I tried Chris's CNC approach but instead of CNC router I used the laser cutter on 3mm MDF (can also use non-clear acrylic).  I created a parametric model in Fusion360 which basically means I can use variables to automatically generate a new square/rectangular spool size, very cool and saves heaps of time. The other benefit is that the laser can cut spools in minutes, not hours and is super accurate for a precise fit.  Here's some photos of the process. Happy to share the Fusion360 file or if people have some requests based on core specs and spool size I can post the vector file for you to source cutting yourself.


Fusion360 model and parameters:

Fusion360 model and parameters

 

Smaller spool in Fusion360

Sample of some cut out of 3mm MDF - approx 15mins  - one pass with 10W laser

Laser cut sample

 

A couple of samples and one on C core. Even without wood glue they are extremelly ridgid. I also cut a few core legs.

On C core

 

Again happy to share some files if I have the specs. 

Regards

Neale

 

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