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Result 1 of 10:

Author

Topic: Air Pumps (Read 57 times)

kenrinc
Fireman

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Joined: Mar 2005
Gender: Male

Posts: 27

Re: Air Pumps
« Result #1 on Dec 3, 2009, 5:59pm »

They are are for show.

Ken

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Result 2 of 10:

Author

Topic: Shay Gears (Read 376 times)

Harlock
Administrator

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Joined: May 2005
Gender: Male

Posts: 443
Location: Mojave Spaceport, Mojave CA

Re: Shay Gears
« Result #2 on Dec 2, 2009, 6:03pm »

Cool. Can't wait to see the results.

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http://www.mikemassee.com/

Result 3 of 10:

Author

Topic: Shay Gears (Read 376 times)

Dan Rowe
Engineer

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Joined: Nov 2008
Gender: Male

Posts: 61
Location: Dripping Springs TX

Re: Shay Gears
« Result #3 on Dec 2, 2009, 1:01pm »

I managed to draw Shay gear set #23 in 3D using ViaCad. It took a bit more time untill I solved the manifold problems so Shapeways would accept the drawing. It does not meet the 3mm minium wall thickness that they say is needed for stainless steel but they allowed me to place an order for the gear. So we will see if they can produce a 7/8ths scale version of the gear.

[image]

Shapeways does not have wax as a 3D printing option but I have found other firms that offer 3D wax printing, so that might be a good method to make a pattern for casting silicon bronze gears in my shop.
Dan

« Last Edit: Dec 2, 2009, 1:35pm by Dan Rowe »

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Result 4 of 10:

Author

Topic: Loctite for Axles & Drivers (Read 65 times)

Harlock
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Posts: 443
Location: Mojave Spaceport, Mojave CA

Re: Loctite for Axles & Drivers
« Result #4 on Dec 2, 2009, 3:47am »

Yea I think 609 is the thing. Made for bonding concentric parts, as they say. Pretty sure that's what we used for our Chloe wheels.

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Result 5 of 10:

Author

Topic: Air Pumps (Read 57 times)

erielimited2960
Gandy Dancer

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Joined: Dec 2009
Gender: Male

Posts: 1

Air Pumps
« Result #5 on Dec 1, 2009, 11:00pm »

I don't have the Climax book, but is the air pump on the left side operational? Or just for show?

-Matt

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Result 6 of 10:

Author

Topic: Loctite for Axles & Drivers (Read 65 times)

Greg Miller
Fireman

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Joined: Oct 2005
Gender: Male

Posts: 34
Location: Chatham, IL

Re: Loctite for Axles & Drivers
« Result #6 on Dec 1, 2009, 9:55pm »

Attached is the datasheet for the Primer.

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Result 7 of 10:

Author

Topic: Loctite for Axles & Drivers (Read 65 times)

Greg Miller
Fireman

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Joined: Oct 2005
Gender: Male

Posts: 34
Location: Chatham, IL

Loctite for Axles & Drivers
« Result #7 on Dec 1, 2009, 9:54pm »

Hello All,

On page 12, Kozo recommends Loctite 75 and Locquic Primer T to attach the Drivers to the Axles.

Loctite 75 is no longer available, but Loctite Tech Support indicates that it was replaced with Loctite 675. Tech Support also stated that Loctite 609 is a very similar formulation and is more readily available.

Locquic Primer T part number is 7471.

Loctite 609 and Loctite 7471 are available from McMaster

Datasheets for both are attached.

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Result 8 of 10:

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Author

Topic: A3a Switcher (Read 2,101 times)

Greg Miller
Fireman

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Joined: Oct 2005
Gender: Male

Posts: 34
Location: Chatham, IL

Re: A3a Switcher
« Result #8 on Nov 29, 2009, 3:28pm »

Hi Pat,

If you look closely at the Robert Sigler's Side Rods, I can see that he drilled through the bushings.

http://www.phutcheson.net/images/A3%20Sw....2350_edited.JPG

Thanks for reminding me about Ed's article, I need to read through that again.

Thanks,
Greg

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Result 9 of 10:

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Author

Topic: A3a Switcher (Read 2,101 times)

phutcheson
Engineer

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Joined: Jan 2006
Gender: Male

Posts: 93
Location: California

Re: A3a Switcher
« Result #9 on Nov 29, 2009, 2:58pm »

Hi Greg,

I'm have been studying that drawing with the same question in mind.

I referred to Eds Hume article A Pennsy A3 builder's Report in Live Steam & Outdoor Railroading dated September / October 2006, page 22. Ed states "Kozo intends for you to drill small holes through the side rod bushing after they are fixed in position with Loctite so oil can flow through the threaded rod holes and bushing to the crankpins."
Ed goes on to say "Here, I believe that the holes are threaded to aid oil retention and not for plugs".

So I plan following Ed's suggestion.

The only question this leaves ... are there more places that we need to have oil holes? I guess we will have to review each case and determine that.

Hope this helps,

Pat H

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Result 10 of 10:

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Author

Topic: A3a Switcher (Read 2,101 times)

Greg Miller
Fireman

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Joined: Oct 2005
Gender: Male

Posts: 34
Location: Chatham, IL

Re: A3a Switcher
« Result #10 on Nov 29, 2009, 9:52am »

Hello,

The Side Rods have a hole drilled and tapped for 2-56 on each end, reference Figure 13-3. What is the purpose of these holes?

The bushings are loctited in place, there is no mention of drilling through the bushing to allow for oil passage, are they cosmetic?

Thanks,
Greg

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