Search found 271 matches

by marinesteam
Mon Apr 01, 2019 2:02 am
Forum: Technical - Engines and Boilers
Topic: digital steam engine indicator
Replies: 62
Views: 28921

Re: digital steam engine indicator

Basicaly, the ones I've seen are a ring round the crank with 36 notches the one at TDC is larger as calibrator. The notches are read by a small coil with a magnetic core. Don't ask about the attatched electronics, that's beyond my ken, but I believe they can calculate the crank position to better t...
by marinesteam
Fri Mar 08, 2019 5:27 pm
Forum: Technical - Engines and Boilers
Topic: digital steam engine indicator
Replies: 62
Views: 28921

Re: digital steam engine indicator

There is no reason that a rotary encoder couldn't be used as the piston location measuring device. It could be done the same way as mechanical indicators with a string and spring return. with the dynamic issues attendant with this kind of mechanical linkage. Measuring the rotational location of the ...
by marinesteam
Wed Nov 14, 2018 3:30 pm
Forum: Welcome
Topic: Gordon Cheape Compound
Replies: 61
Views: 6182

Re: Gordon Cheape Compound

Wes is describing the leading or trailing edge if the same blade. The leading edge is the one furthest away, right side of blade, RH prop

Ken
by marinesteam
Wed Oct 10, 2018 3:21 am
Forum: Welcome
Topic: Gordon Cheape Compound
Replies: 61
Views: 6182

Re: Gordon Cheape Compound

Use a pressure snubber and gauge with a proper rating and you should have no problem.

Cheers
by marinesteam
Fri Sep 21, 2018 3:48 am
Forum: Technical - non Engines and Boilers
Topic: Building a Steam Library
Replies: 5
Views: 770

Re: Building a Steam Library

The Steam Launch - Mitchell
by marinesteam
Mon Sep 17, 2018 2:48 am
Forum: Welcome
Topic: Greetings from Washington State
Replies: 4
Views: 519

Re: Greetings from Washington State

Welcome,

The EB triple is quite the undertaking. One of the members has built two of them and they are works of art. I'm sure he will chime in with suggestions on what can be improved and pitfalls in the prints.

I am building an EB York engine currently.

Cheers

Ken
by marinesteam
Mon Aug 20, 2018 2:22 am
Forum: Members' Websites and Boats
Topic: My 24' Launch
Replies: 149
Views: 93397

Re: My 24' Launch

Fire!

Very nice.

Ken
by marinesteam
Sun Aug 12, 2018 5:32 pm
Forum: Technical - Engines and Boilers
Topic: More progress
Replies: 86
Views: 36229

Re: More progress

Set up for line boring the crankshaft journals. Had to remove the lathe cross slide in order to be able to get the bedplate on centerline. It was 3/8" too tall.
IMG_2702.jpg
IMG_2702.jpg (18.33 KiB) Viewed 484 times
Ken
by marinesteam
Thu Aug 02, 2018 4:19 am
Forum: Technical - Engines and Boilers
Topic: hydroforming a boiler from sheet metal
Replies: 3
Views: 637

Re: hydroforming a boiler from sheet metal

Proper Hydroforming is done in a enclosed die, not just blown up like a balloon. The tool will cost a fortune not to mention the need for FEA FEM to simulate the forming to predict that it doen't thin out too much in areas. Take two sheets of paper, tape two opposite edges together and blow in-betwe...