Скачать или смотреть 10 Steps Forward. Zero Steps Back

The gear drive I added to my homemade band saw worked, but was insanely noisy. It was bad enough that I decided to return it to the belt drive, but with a flat multi-V belt this time AND pulleys that are 3D printed.
Why? Because I can and I'm curious to see how well 3D printed parts stand up to real world usage. No they are not as durable as "proper" pulleys, but they are a tiny fraction of the cost and can be designed and made to the size you need. That is a HUGE upside for someone who makes his own tools because it takes away the limit of working with what you can find.
Next I rebuilt the table and trunnions. This time I used 1/4" thick aluminum plate for the parts to make it extra strong.
Why? For practice, mainly. I have at least one big machine build coming up that I'll be making from the same aluminum in the same way, so I need to get good at using the software and the metal cutting CNC to limit the mistakes I make on the bigger project.
The new table is a major improvement over the 3D printed one AND the original one made from plywood. It's solid, durable and easy to adjust, plus the aluminum is a lot slicker and doesn't "grip" the stock as it's being pushed into the blade. It can be anodized to make it even tougher (or dye it a different colour), but I like the "frosted" look it gets from sanding it with a random orbit sander.
The CNC I made for metal work:
   • A CNC made from Broken Rules and Spare Parts  
The original build video for the band saw:
   • Making a Band Saw - Full Build Video  

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