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Blog

Center Bowl Project Mandrel Cut -- Too Large

My associate Tony and I cut the profile for the new bronze center bowl project. The original size was 230mm, I decided to increase the size by 20%. It turns out that that was too much. We cut the profile on the hard maple mandrel and realized that the bowl would be [...]

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Hany Completes HVAC Sheet Metal Training at the Techshop

Hany completes 120 hours HVAC Sheet Metal training at the Techshop in Menlo Park California.Here Hany is holding his last sheet metal duct product in this class. The Pittsburgh seams were formed by hand on the JET brake at the Techshop. We used 24 gauge cold rolled steel for the fabrication of all [...]

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The Ideal Metal Spinning Project for Your Makerspace

Terry Tynan and I developed the 160mm Popcorn Bowl as the suggested product for your makerspace metal spinning class. It is the perfect project in that you get to use all the tools and it is easy enough that almost everybody will be able to yield a functional parts. The mandrel was designed [...]

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More Tooling and More Vacuum Formed Parts at the TechShop

As we learn more and more about making vacuum tooling and from our tooling shots we conclude that we need thicker ABS on all of the parts. We had been using 1mm thick sheet but now we are going to use 1.5mm and 2.25mm thick ABS. We are also making two parts out [...]

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First Attempt at Putting a Patina on Commercial Bronze Uneventful and Unsuccessful

I tried to Patina some commercial bronze coupons. I used the Liver of Sulfur Extended Life Gel, 1cc Liver of Sulfur in 350ml of water heated to 70 degree centigrade. I also prepared a sodium carbonate neutralizing bath. I cleaned the 1mm thick commercial bronze coupons and dipped them into the Liver [...]

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First R2D2 Dome Being Spun at the TechShop

I spun the First R2D2 spun dome. This first dome was spun from 1mm thick 1100-0 aluminium. I did not yield a good part on my first attempt. I got some buckling towards the skirt. I think I know what I did wrong. I use my new roller tools form [...]

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Sheet Metal Fabrication and Vacuum Forming Often Go Hand and Hand when Prototyping at Your Makersapce

Now it is time to see if our vacuum parts fit the 24 gauge steel parts. A 24 gauge steel insert is used to provide structural integrity for the 1mm thick ABS Plastic inner door panel. The hinges and other items mount to the steel substructure rather than the plastic. The steel parts look blue [...]

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Vacuum forming, another great prototyping and preproduction technology for your makerspace

We finished up two sets of vacuum forming tools at the TechShop in Menlo Park, CA. These 8/4 hard maple tools were designed using Solidworks and fabricated on the ShopBot at the Techshop. This parts are all given part numbers and documented on the Bill of Material for the project. We added some [...]

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Vacuum Forming - First Tooling Shots from New Vacuum Tools

Here is a tooling shot from our new inner door panel tool. Here we are using 1mm thick ABS from Tap Plastic. We used the TechShop's vacuum forming equipment at Menlo ParkOuter Door AssemblingInner Door Panel w/steel insert (not shown)

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Buffing and Polishing Technologies for your MakerSpace

There are a number of low cost technologies that could add a lot of value to your makerspace. For example, the Techshops offer Media Blasting and Powder Coating. These are part of a subset of technologies I refer to as finishing. Furthermore powder coating don't have all of the environment issues that conventional spray painting [...]

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