They Wanted $840 For This... So I Melted Scrap Instead!

They wanted $840 for 12 simple pieces of cast aluminum. So, I said NO! When the retail sticker shock for my DIY solar ground mount racking hit over $4,000, I decided to bypass the traditional supply chain entirely. Instead of opening my wallet, I fired up my backyard foundry, gathered scrap metal, and set out to cast my own heavy-duty structural post caps. But aluminum casting isn't as simple as social media makes it look. In this video, I walk you through the entire journey—from the initial 3D design and the brutal "sticker shock" of the parts list, to the delicate thermodynamics of handling liquid metal. I also share the catastrophic casting failures that almost ruined the project, how I redesigned the risers to fix shrinkage cavities, and why embracing failure is the most important tool in any DIYer's toolkit. If you're tired of overpaying for retail hardware and want to see how grit, science, and a backyard furnace saved me nearly $1,000, hit play! Timestamps: 0:00 - The $840 Sticker Shock 0:30 - Navigating the Solar Supply Chain & Finding Clearance Deals 1:25 - The Plan: Melting Scrap to Save Hundreds 2:26 - The Science of Casting (And Why Instagram Lies) 3:26 - Catastrophic Failures: Shrinkage Cavities Explained 4:02 - Iteration & Success: Perfecting the Pour 4:24 - Why We Need More Grit (The Edison Mindset) 3D Print files can be downloaded for free here https://www.patreon.com/MacGarvins/posts/solar-hardware-163058677?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=postshare_creator&utm_content=join_link As an Amazon affiliate I earn from qualifying purchases, links below help support the channel at no extra cost to you! Products used in this video Vevor 12kg furnace https://amzn.to/4fByzIF Rigidizer for ceramic wool https://amzn.to/4wlkoys Satanite refractory coating https://amzn.to/4hznIRY Ingot molds https://amzn.to/4gUS1Ta Aluminized gloves https://amzn.to/4wf0jtG Makeup Brush https://amzn.to/46DkF4N Talc Powder https://amzn.to/4dpYbYI Shars R8 boring head https://amzn.to/4fhAH9A #foundry #metalcasting #machining #diycrafts #solarpower #diysolarsystem #diysolar