Hi Audio Friends,
I mentioned these in my 330a restoration thread but I thought these deserved their own highlight. As I was working on my 330a, I really wanted to upgrade the screw type speaker terminals. I looked around online and found some upgrades on eBay, but I wasn't a fan of the 3D printed, layered look. Fortunately, I had just purchased a desktop laser cutter from a friend and wanted to see if I could figure out how to make my own.
Being a low 50 watt CO2 laser, my options for materials were a bit limited, but cast acrylic was something I could cut, and had on hand. A quick Google search told me that if my receiver were to go up in flames, the cast acrylic would melt before it added to the flames. As long as my use case was far enough away from any major heat source, they wouldn't warp. In the 330a, there was enough air clearance around them, I was confident they would be fine.
With the factory terminals out and calipers in hand, I set about creating my own plates in Adobe Illustrator (it's what I know). Now that I'm familiar with it, I'll do future projects in Light Burn directly.
After a few design trials, I managed to come up with direct fit replacements that didn't warp when 5-way binding posts were screwed into the plates. I'm not an engineer so it was trial and error, but the result, I think, looks great.
Hat tip to @QUiKSR20 for being willing to test a set for me and sending these fabulous photos.
If you are interested in details, DM me.
My next project will be direct replacement upgrades for the 330c.
Thanks for looking!
I mentioned these in my 330a restoration thread but I thought these deserved their own highlight. As I was working on my 330a, I really wanted to upgrade the screw type speaker terminals. I looked around online and found some upgrades on eBay, but I wasn't a fan of the 3D printed, layered look. Fortunately, I had just purchased a desktop laser cutter from a friend and wanted to see if I could figure out how to make my own.
Being a low 50 watt CO2 laser, my options for materials were a bit limited, but cast acrylic was something I could cut, and had on hand. A quick Google search told me that if my receiver were to go up in flames, the cast acrylic would melt before it added to the flames. As long as my use case was far enough away from any major heat source, they wouldn't warp. In the 330a, there was enough air clearance around them, I was confident they would be fine.
With the factory terminals out and calipers in hand, I set about creating my own plates in Adobe Illustrator (it's what I know). Now that I'm familiar with it, I'll do future projects in Light Burn directly.
After a few design trials, I managed to come up with direct fit replacements that didn't warp when 5-way binding posts were screwed into the plates. I'm not an engineer so it was trial and error, but the result, I think, looks great.
Hat tip to @QUiKSR20 for being willing to test a set for me and sending these fabulous photos.
If you are interested in details, DM me.
My next project will be direct replacement upgrades for the 330c.
Thanks for looking!
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