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.
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
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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
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