Easy Magnet rods Making tools for Delta 3D printer

Easy Magnet rods Making tools for Delta 3D printer .

1515 or 2020 aluminum rob for fixing the tools

Building instruction here
https://www.facebook.com/Phineas3DP/photos/a.688764424596053.1073741830.661968140609015/688764444596051/?type=3&theater

suitable for below material.
10mm steel ball,
M8x10 strong magnet,
10x8X25mm nylon tube
8x6 fiber glass tube