Bigger castings, melting and making alloy CNC parts with epoxy layer damping

Casting the large spindle plate: https://youtu.be/CCBsAKCMTME It will fill our largest crucible right to the brim, but we are attempting to melt some aluminium in the new waste veg oil furnace, pour it, and make a casting for the large CNC machine. This will be the z-axis carrier plate – the part that travels the length of the gantry and provides a platform for the z’s linear motion carriages, ball screw and servo motor. See the CNC thrown together and in action here: https://youtu.be/HbAwkID7cjA Want to see our experiments with the y-axis gantry? video here: https://youtu.be/obR-l7qVhQY 23 metal casting tips (which is also the video where we make the large z axis spindle plate). https://youtu.be/CCBsAKCMTME The 3D model of the CNC AND a document explaining how to use DIY mixed 'metalized epoxy' to massively aid in machine building are both available for a tokenistic amount in our Ko-fi shop here: https://ko-fi.com/floweringelbow/shop If you enjoy our videos, consider buying us a coffee https://ko-fi.com/floweringelbow Here's Olfoundryman’s great video about pouring technique https://youtu.be/m6W71s-cd_0 Subscribe to Flowering Elbow for more DIY upcycling fun! https://goo.gl/7tFFPu Check out our secondary channel "Flowering Elbow 4 Super Nerds" here: https://www.youtube.com/channel/UCSgDIVbcssx_urdEGNwp9qw?sub_confirmation=1 00:00 Intro to the melting and casting project 00:18 Preparing the pattern 00:39 Ramming up the flask with green sand 02:00 The mulling / mixing machine – increasing moisture content 02:13 Harvesting scrap aluminum (alloy wheels are my usual source) 02:42 Improvements to sprue, runner, pouring basin and gating design + a few casting tips and tricks 04:27 Splitting the flask, removing the pattern 06:00 A word on the new waste oil furnace 07:07 The big pour! 08:44 The casting reveal 10:17 Machining the casting’s critical surfaces 11:30 Epoxy damping takes the stage 14:31 Implementing epoxy 15:00 tweaking the constrained layer damping 15:36 dealing with counterbore difficulties Lets Connect! Our website: http://www.FloweringElbow.org FB: https://www.facebook.com/floweringelbow/