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Old movie projectors have a round piece of glass in front of the light bulb. They are made for the high temperature.

On another note, I have a couple of Jensen boiler/steam engines. I have often wondered what is in them (type of boiler) and how they are manufactured. Are these soldered?

Could you guys clear something up for me? I have been soldering jewelry for about 40 years using “silver solder”. I buy it in sheets at the following melting points; Easy 1240F 671C Med 1275F 691C Hard 1365F 741C Plumbers, “silver solder” melts around 420-460F 220-240C electrical...

The castings look great! Any chance you have video of the process? Great project, keep it up.

In 2010 I left a Plastic welder plugged in on my bench. It melted, started a fire and I lost all of my tools, the Christmas stuff on the second floor storage, and three cars. It took two years to rebuild my garage and replace the tools. The good part was, the garage was detached, 100 feet from...

I have Turbocad delux for Mac, V12. Recently I tried the Windows version. They are very different programs. They told me that they purchased the Mac version and brought it into the Turbocad family. I liked the interface for the Windows version much better but the Mac is a little more basic and...

I was space, money and power limited when I purchased my mill. Many times I wish I had a sturdier mill, especially when attacking steel. Originally the mill was purchased to support my weekend steam hobby. Now I find myself making repair parts and designing items to support my other hobbies...

Don’t forget to budget for “accessories “. I retired a year ago, you’ll love it. I spend my summers in the garage working on cars and reserve the cold weather for basement tinkering. I spend a fair amount of time 3D drafting then turning them into things... Have you considered CNC and 3D...

I inherited my dad’s Atlas lathe. I took it apart, cleaned it, replaced the Timken bearings, replaced the beat up 3” chuck with a 5” and added a quick change tool post. I know he would have appreciated the upgrades. A few days ago my older brother was over and noticed the old sewing machine...

It has come to the point that I am afraid to upgrade my OS. Recently, I upgraded my Mac, clicked on my Outlook and was presented with the message that I had to upgrade my MS suite. Well, despite the fact that I lost everything associated with that suite, I refuse. The same thing happened when...

I put my tools away at the end of the day also, but’s that’s because I won’t remember where I put them the next day!

I finished one of these last year. I broke three taps on the casting. Those tiny mounts hardened more than the thicker part of the frame. I finally drilled the holes one size larger. It is, however, my favorite engine to date.