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5-Cylinder Radial Engine Model

by MakerBot, published

5-Cylinder Radial Engine Model by MakerBot Mar 21, 2013

Featured Thing!

Description

Since the first Radial Engine was built in 1901, the technology has been synonymous with aviation. The first flight across the English Channel was powered by a 3-cylinder 12 hp radial engine, built by Italian engine designer Alessandro Anzani. The heavy bombers of the Second World War were powered by massive 28-cylinder 4,300 hp radial monsters from Pratt & Whitney. The basic operating principle illustrated by this model is accurate to both. Radial engines have largely been supplanted in aviation by gas turbines, but are still found today on specialized acrobatic aircraft.

This 5-Cylinder Radial Engine Model is based on the Forest Edwards Radial 5, a radial model aircraft engine.

This engine started from excellent paper plans drawn by Robert Sigler. The engine described in Roberts’s plans is intended to be machined form metal, and had to be extensively modified to work with desktop 3D printing technology.

Here's a video of the engine being cranked by hand: flickr.com/photos/bvicarious/8043692271/in/set-72157631666979368

Created By Michael Curry

Recent Comments

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i get this message when i try to slice it. 5:39:27 PM: <slic3r> The model has overlapping or self-intersecting facets. I tried to repair it, however you might want to check the results or repair the input file and retry.
5:39:27 PM: <slic3r> No layers were detected. You might want to repair your STL file and retry.

5:39:12 PM: <slic3r> Warning: The input file contains a hole near edge 62.982891,78.219978,0.000000-62.558971,75.000000,46.609001 (not manifold). You might want to repair it and retry, or to check the resulting G-code before printing anyway.</slic3r></slic3r></slic3r>

Anyone printed this in ABS?

this thing is awsome in all ways i have no springs and it works fine need gress

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Instructions

Welcome to the most ambitious mechanical 3D printing project you have ever attempted.

Full instructions are available in '5 Cylinder Engine Instructions.pdf'

The Big Engine in the photographs was made by scaling all files to 140%

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Comments

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bears on Apr 2, 2014 said:

i get this message when i try to slice it. 5:39:27 PM: <slic3r> The model has overlapping or self-intersecting facets. I tried to repair it, however you might want to check the results or repair the input file and retry.
5:39:27 PM: <slic3r> No layers were detected. You might want to repair your STL file and retry.

5:39:12 PM: <slic3r> Warning: The input file contains a hole near edge 62.982891,78.219978,0.000000-62.558971,75.000000,46.609001 (not manifold). You might want to repair it and retry, or to check the resulting G-code before printing anyway.</slic3r></slic3r></slic3r>

philsson on Oct 28, 2013 said:

Anyone printed this in ABS?

makerfan188 on Jul 12, 2013 said:

this thing is awsome in all ways i have no springs and it works fine need gress

LucasSaugen on May 23, 2013 said:

Has anyone made a hand crank for this yet?

LucasSaugen on May 23, 2013 said:

Ok. I made quickly. http://www.thingiverse.com/thi...

dwalton on Apr 17, 2013 said:

This is a really neat model. I am printing this and cannot wait to see how it turns out. I noticed in the pdf file that there is an "electrical kit." I was thinking about using LEDs to simulate spark plugs but wasn't sure where they would go and how I would control the timing (the model does not have a distributor). Can someone point me to plans for the electrical kit?

dwalton on Apr 17, 2013 said:

This is a really neat model. I am printing this and cannot wait to see how it turns out. I noticed in the pdf file that there is an "electrical kit." I was thinking about using LEDs to simulate spark plugs but wasn't sure where they would go and how I would control the timing (the model does not have a distributor). Can someone point me to plans for the electrical kit?

LucasSaugen on Apr 2, 2013 said:

Looking for a good place to buy the springs. Anyone?

dxhacksaw on Apr 14, 2013 said:

springs from click pens

KalReegar on Mar 27, 2013 said:

I do not have a maker bot but know a little about 3D printing so I have a question to clear up my mind. Is the model of makerbot that you used accurate enough to be able to print the whole engine assembly together instead of printing the individual components separately? I have seen it done with a crescent wrench where all the components (the main wrench body, the pin, the adjusting screw and the movable jaw) were printed together and there were air gaps left between the mating components. This completely eliminated the need for post-print assembly. Just a thought...

blainehale on Apr 4, 2013 said:

You may want to do a little more 3d print research before asking that question. I'll save you the trolled and just say "not possible" with current technology with a rendering as intricate as this.

Dampfboot on Mar 25, 2013 said:

We have build it already: http://www.youtube.com/watch?v... - OK, an other size and material...

Have a look here also:
http://www.setzstock.de/motor/...

KalReegar on Mar 27, 2013 said:

I watched that video and that would be a rotary engine. Kinda different from what they have posted here. This is a radial engine.

rocketboy on Mar 25, 2013 said:

What's with the hate? This thing is awesome, I can't wait to print it!

avandss on Mar 23, 2013 said:

this will be a long build.... let it begin!

yzorg on Mar 22, 2013 said:

Awesome!

But u would be a genius make it able to run by air.
polish the moving parts or ABS-coat them and add O-rings for tight fit.

DFarms on Mar 26, 2013 said:

acetone vapor smoothing haha, and o rings.

uberstupidmove on Mar 22, 2013 said:

Oh look, something you released is open source.

dxhacksaw on Apr 14, 2013 said:

used springs from promo click pens and cut them down

iquizzle on Mar 25, 2013 said:

well sort of.. no actual *source* files included, only distributable stl's

bvac on Mar 22, 2013 said:

derp

BradDudenhoffer on Mar 22, 2013 said:

Excellent design! I love radials. Keep up the good work.

azuro on Mar 22, 2013 said:

It figures they would post something that will take three spools to print. Cool thing though...

visualkev on Mar 22, 2013 said:

that is a friggin' awesome build. I am not worthy. :)

SlaveMassaDrivaJDCUBED on Mar 21, 2013 said:

Does it actually run on air or something? or is it just for display?

bvac on Mar 22, 2013 said:

You can crank it by hand at least: http://www.flickr.com/photos/b...

thecrazy on Mar 22, 2013 said:

You can probably move the parts by hand but there is no way a printed piston could work without a lot extra finishing. The "strata" in the surface finish (caused by the layers) would not allow proper movement.

ICEPICKTONY on Mar 21, 2013 said:

I would like to see a you tube video of it's assembly and operation.. Looks like it will take weeks of printing. I want to do it.

Makerperson on Mar 21, 2013 said:

Ever since I saw this in the photo of the replicator 2 I've been wondering when or where I would find it, Awesome!

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