Newby question. Engine cylinders

**MichaelS** · #1 12-19-2017, 04:02 PM

Just how am I supposed to turn these into engine cylinders for my 1/33 P-26? I have looked at pics of ther real P&W Wasp and cannot figure out how to do this. Kit is by Marek.

**Don Boose** · #2 12-19-2017, 04:16 PM

Michael-

I don't have much of a track record for completing 1/33 radial engines successfully, but pending more authoritative guidance from those who do, let me suggest that if you roll those parts and glue the white tabs under the colored part, they will turn into, well, cylinders, and become the basis for the rest of the engine.

The image below is of a much simpler engine (Peter Zorn Spirit of Saint Louis) under construction and should illustrate what I mean.

Best wishes on this build.

Don

**Texman** · #3 12-19-2017, 04:49 PM

That type of cylinder is rolled tightly. When finished rolling, there would be
no glue tab showing, and the top part of the cylinder will be thicker
than the lower part.

**Butelczynski** · #4 12-19-2017, 05:09 PM

Like Texman says above those are suppose to be rolled tight.Personally I replace those cylinders with ones made out of much thinner paper but same profile.Engine gets assembled and then painted either with silver marker,watercolors or silver paint from a can (depends on size of an engine).

I use to have grey sheet of paper marked with horizontal lines every 1/32 of an inch.I use to copy that sheet on a copy machine and voila-easy ,ready made paper for cylinders and undercarrige legs.

**MichaelS** · #5 12-20-2017, 07:52 AM

Thanks all. I didn't realize the cylinders were tapered.

**Burning Beard** · #6 12-20-2017, 08:32 AM

They aren't really tapered, the top of the cylinder has a larger diameter than the bottom of the cylinder, it will look like one tube fitting into a larger tube when finished.

Beard

**MichaelS** · #7 12-20-2017, 08:34 AM

OK. Got it after looking at some pics on the internet of the real thing.

**dje** · #8 12-26-2017, 07:09 AM

hi,
get yourself a set of drills, with the "flat" part that supposes to go into the mandrel and reducing the size progressively you can make a good work. for the "cone", just form paper with an angle

For tiny size, sometime modelling shop sell some, else look into electronic one

**elliott** · #9 12-26-2017, 08:32 AM

For tiny drill bits that you would use in a pin vise Micromark and Harbor Freight are two good places to look.

**Butelczynski** · #10 12-26-2017, 10:26 AM

Quote:

Originally Posted by dje

hi,
get yourself a set of drills, with the "flat" part that supposes to go into the mandrel and reducing the size progressively you can make a good work. for the "cone", just form paper with an angle

For tiny size, sometime modelling shop sell some, else look into electronic one

For rolling cones I found handles from paint brushes very handy-they have very gentle taper and are always made of somewhat sturdy wood.