I have been playing around with 3D printers for about a year now. I have everything dialed in and I’m ready to start a real project. I was browsing Thingiverse and I saw this.
https://www.thingiverse.com/thing:2537602 I thought that this would be a great engine project for my 3D printers. The intent is that this will be a side project to work on when I’m held up on my primary project. As far as I know this will be the first additive machining build log on this site so I am kind of figuring out what that means as I go along. Any feedback on what you would like to see as part of a 3D printed project build log would be appreciated. Now let’s get started. Since the model build’s up like a real engine, the first thing I need is an engine stand to build it up on. I decided to make this one.
https://www.thingiverse.com/thing:2225638It was designed by the same guy who designed the engine but it might be useful for anyone building a model engine. The first thing I did is to order the parts kit for the stand. It came with all of the hardware and the lengths of tube precut. Next I printed all of the remaining parts.
The parts were printed with a .2 layer height with a 25 % infill. I had 5 top and bottom layers and 3 outside layers. Included in the printed parts were a set of drilling jigs. I used the jigs to center pop the required holes.
Then I drilled all of the holes in the aluminum tubes.
I also drilled out the template that matches the hole pattern for my specific block.
Last I drilled out the holes in the fingers.
I deburred the holes and assembled the basic frame.
Most of the parts were screwed to the tubes but I did have some issues with layer separation in a few places (mostly from over tightening the fasteners ). I closed up the separations and glued in the remaining supports with CA glue. Hopefully that will hold. Next up was to build the spindle head assembly on top of the vertical.
Then I assembled the flange assembly.
With the flange assembly built I installed it into the spindle.
The wheels were installed leaving us with this completed engine stand.
Next time I’ll get started on the engine itself. Please let me know if this format is working for this type of build log and or what you think I should do differently.
Till next time.
Tony
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