Author Topic: Otto Langen 1867 Engine Drawings  (Read 18622 times)

Offline Jo

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Re: Otto Langen 1867 Engine Drawings
« Reply #30 on: January 14, 2015, 07:41:15 AM »
Not yet  :shrug:

My 1/4 scale drawings are still in my 3D CAD package and a few bits still need a correcting to make them look more realistic, there are a couple of design decisions still to make which might alter internal measurements  ;)

We are not far off. A very nice man has made the patterns which I hope to pick up on Saturday  ;D: Then we just need to find a new foundry (after I have done the pattern for something else  :-[).

Currently the run looks to be 5 engine sets  :pinkelephant:

Jo

P.S. as it is a German engine the drawings are all in metric  :mischief:
« Last Edit: January 14, 2015, 09:38:29 AM by Jo »
Enjoyment is more important than achievement.

Online Jasonb

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Re: Otto Langen 1867 Engine Drawings
« Reply #31 on: January 14, 2015, 07:57:16 AM »
And you can't have a top without a bottom


Offline Phil_L

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Re: Otto Langen 1867 Engine Drawings
« Reply #32 on: January 14, 2015, 04:25:43 PM »

We are not far off. A very nice man has made the patterns which I hope to pick up on Saturday  ;D: Then we just need to find a new foundry (after I have done the pattern for something else  :-[).

Currently the run looks to be 5 engine sets  :pinkelephant:

I like six. It just became my favorite number!  :embarassed:  :naughty: What would I need to do to get a slot in the line?

P.S. as it is a German engine the drawings are all in metric  :mischief:

You obviously have a keen eye for maintaining the full historic authenticity!!  It should be no other way.  Now I'll have to get my metric adjustable wrenches calibrated.

Offline Don1966

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Re: Otto Langen 1867 Engine Drawings
« Reply #33 on: January 14, 2015, 05:24:24 PM »
Jo I am interested in modeling this engine as well. I could not open any of the PDF files that were posted. Any info I can get would help.

Don

Offline Steamer5

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Re: Otto Langen 1867 Engine Drawings
« Reply #34 on: January 14, 2015, 05:33:02 PM »
Hi Don,
 I  had the same problem trying to view on my iPad. I've got adobe viewer on it. Hit the open in adobe & up came the drawings! Hope that helps.
Wonder if Jason's version is going to be made from stock........


Cheers Kerrin

Edit, sorry adobe reader....should of checked first!
Get excited and make something!

Offline b.lindsey

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Re: Otto Langen 1867 Engine Drawings
« Reply #35 on: January 14, 2015, 05:38:03 PM »
They opened here ok but I am at work. It seems like I saw some several years back at Cabin Fever but if I recall, they were bar stock not castings.

Bill

Offline Jo

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Re: Otto Langen 1867 Engine Drawings
« Reply #36 on: January 14, 2015, 05:51:01 PM »
 :o Ok lets be honest this is not a small engine  :ShakeHead: You need a lathe that can throw a 12" flywheel.

We considered making the bits from stock and came to the assumption that it was actually cheaper to have them cast. And whilst Cast Iron is messy if it is cast by a good foundry it can be nice to machine.

I have six more parts to redraw (rachet Pawl, Pawl Eccentric Strap, Ratchet Wheel, Lever (2), and the rack foot). I used the original Lenaz drawings that I luckily acquired from a lovely man :-* as the basis for our redesign. Gears work out at 20DP. The rack is available commercially but only in volume.

Before I do all this I have to design and make the pattern for my Ploughing engine cylinder, which means working in the brown stuff  :paranoia: and I have been putting it off :facepalm2:

Jo

« Last Edit: January 14, 2015, 08:05:53 PM by Jo »
Enjoyment is more important than achievement.

Offline Stuart

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Re: Otto Langen 1867 Engine Drawings
« Reply #37 on: January 14, 2015, 06:07:33 PM »
Don

You cannot open the PDFs because a. You have a Mac and b. They are 3d ones

You can get a app to do it on the iPad and Adobe reader will do it if you have a OS X machine ( only install the Adobe stuff if you want it spread about your system

I do dev work for apple OS X and I have tried yo get them to extend the preview util to open them

Note your iPad uses iBooks to open the PDFs files

Stuart
My aim is for a accurate part with a good finish

Online Jasonb

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Re: Otto Langen 1867 Engine Drawings
« Reply #38 on: January 14, 2015, 06:27:37 PM »
The patterns are not for highly detailed parts, more of a minimal waste if all surfaces are machines approach which will still work out cheaper than buying bar and billets to get the three main components out of.

Though I hate to think what postage to the collonies would be as they will weigh in at 27kg or 58lbs :-\

I'll sort out a photo a bit later.

J

Offline Xldevil

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Re: Otto Langen 1867 Engine Drawings
« Reply #39 on: January 14, 2015, 06:44:16 PM »
Don

You cannot open the PDFs because a. You have a Mac and b. They are 3d ones

You can get a app to do it on the iPad and Adobe reader will do it if you have a OS X machine ( only install the Adobe stuff if you want it spread about your system

I do dev work for apple OS X and I have tried yo get them to extend the preview util to open them

Note your iPad uses iBooks to open the PDFs files

Stuart

Hello.
I can open them in iBooks but the sides are blank.I'm using IOS 8.
Cheers,Ralph

Offline Stuart

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Re: Otto Langen 1867 Engine Drawings
« Reply #40 on: January 14, 2015, 06:49:52 PM »
Yes that's correct but it's because they are 3d PDFs not normal text based PDFs

Stuart

Ps look out for OS 8.1.3 later this week or next
My aim is for a accurate part with a good finish

Offline mhirst121

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Re: Otto Langen 1867 Engine Drawings
« Reply #41 on: January 14, 2015, 07:31:31 PM »
This is coming along very well. I am waiting for the Lorenz on the cart from Germany, as I used to own the full size engine and regret ever parting with it, but it does not seem to be available yet. Otherwise I could have been very tempted by one of these lovely engines.

Cheers,
MartinH
Carlisle, Cumbria, UK
A creative mess is better than idle tidyness !!

Offline Phil_L

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Re: Otto Langen 1867 Engine Drawings
« Reply #42 on: January 14, 2015, 07:37:40 PM »
:o Ok lets be honest this is not a small engine  :ShakeHead: You need a lathe that can throw a 12" flywheel.

Before I do all this I have to design and make the pattern for my Ploughing engine cylinder, which means working in the brown stuff  :paranoia: and I have been putting it off :facepalm2:

Jo

The 12" flywheel doesn't scare me.  I've got 13" over the ways and the Mery was 12" or darn close if I remember. 

I'll just have to clean up the shop while I wait patiently...  :stir:  :happyreader:  :popcorn:

Offline Jo

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Re: Otto Langen 1867 Engine Drawings
« Reply #43 on: January 14, 2015, 08:05:28 PM »
Hi Phil,

We normally ask new member to participate in the forum before we start giving out free drawings  ;)

As for the 12", that will just about fit on my small faceplate on the Colchester but I am expecting to choose to use the 18" one to give me more and easier clamping options  8)

Martin the Lenaz design is a "nearly" 1/6th scale version, so a little smaller than these  :naughty:

Jo
Enjoyment is more important than achievement.

Online Jasonb

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Re: Otto Langen 1867 Engine Drawings
« Reply #44 on: January 14, 2015, 08:29:49 PM »
Quick Pic, I'll do a write up on the pattern making at some time.

J