Balanced Air Brakes from Scratch - Revision history

Dnevil: /* Video Demo */

2021-01-06T04:20:52Z

Video Demo

← Older revision		Revision as of 23:20, 5 January 2021
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	<br>		<br>
	<~~videoflash~~>6xFOI4LY6Vs</~~videoflash~~>		<youtube>6xFOI4LY6Vs</youtube>
	<br><br>		<br><br>

Dnevil: /* Video Demo */

2019-12-04T16:05:05Z

Video Demo

← Older revision		Revision as of 11:05, 4 December 2019
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	File:CabooseAirBrakeTrainLineValve.jpg\|Clippard TV-2S toggle valves were selected because of their small size, low cost, and reliable operation. Note the eye hooks for safety chains, as required by some railroads.		File:CabooseAirBrakeTrainLineValve.jpg\|Clippard TV-2S toggle valves were selected because of their small size, low cost, and reliable operation. Note the eye hooks for safety chains, as required by some railroads.
	</gallery>		</gallery>

			=== Plastic Shoes ===

			In 2019 I replaced the aluminum shoes with more realistic shoes printed in black PLA. See [[Brake_shoe#Plastic_Brake_Shoes\|Plastic Brake Shoes]].

	== Video Demo ==		== Video Demo ==

Dnevil: /* Brake Pads */

2016-06-02T19:32:15Z

Brake Pads

← Older revision		Revision as of 14:32, 2 June 2016
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	=== Brake Pads ===		=== Brake Pads ===

	<gallery widths="300px" heights="300px">		<gallery widths="300px" heights="300px" perrow="2">
	File:CabooseTruck BrakePadMaterial.jpg\|Brake pad material from McMaster-Carr.		File:CabooseTruck BrakePadMaterial.jpg\|Brake pad material from McMaster-Carr.
	File:CabooseTrucks AttachingBrakeShoes.jpg\|The Brake Pads are cut and glued to the aluminum Brake Shoes with JB Weld. The Brake Shafts are pulled tight using rebar ties attached to the axle. This holds the shoes tightly to the pads and forms the curve in the shoes.		File:CabooseTrucks AttachingBrakeShoes.jpg\|The Brake Pads are cut and glued to the aluminum Brake Shoes with JB Weld. The Brake Shafts are pulled tight using rebar ties attached to the axle. This holds the shoes tightly to the pads and forms the curve in the shoes.

Dnevil: /* Air Tank */

2016-06-02T19:31:56Z

Air Tank

← Older revision		Revision as of 14:31, 2 June 2016
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	=== Air Tank ===		=== Air Tank ===

	<gallery widths="300px" heights="300px">		<gallery widths="300px" heights="300px" perrow="2">
	File:FreightTruckAirBrakes1.jpg\|I started with the air tank. It is constructed using 2 inch diameter PVC pipe (schedule 40) with a pair of caps. A hole was drilled and tapped for 10-32 threads to accept a Clippard fitting. An adhesive dot was placed over the hole before painting.		File:FreightTruckAirBrakes1.jpg\|I started with the air tank. It is constructed using 2 inch diameter PVC pipe (schedule 40) with a pair of caps. A hole was drilled and tapped for 10-32 threads to accept a Clippard fitting. An adhesive dot was placed over the hole before painting.
	File:FreightTruckAirbrakes2.jpg\|PVC glue was applied to the threaded hole before inserting the Clippart CT4 1/16 hose barb fitting. Be careful with the glue. As you can see it will remove paint.		File:FreightTruckAirbrakes2.jpg\|PVC glue was applied to the threaded hole before inserting the Clippart CT4 1/16 hose barb fitting. Be careful with the glue. As you can see it will remove paint.

Dnevil: /* Mechanical Drawings */

2016-06-02T19:31:33Z

Mechanical Drawings

← Older revision		Revision as of 14:31, 2 June 2016
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	=== Mechanical Drawings ===		=== Mechanical Drawings ===

	<gallery widths="300px" heights="300px">		<gallery widths="300px" heights="300px" perrow="2">
	File:CabooseBrakes BrakeShaft.jpg\|Brake Shaft for Caboose Trucks. Two required per truck.		File:CabooseBrakes BrakeShaft.jpg\|Brake Shaft for Caboose Trucks. Two required per truck.
	File:CabooseBrakes BrakeShaftDetail.jpg\|End detail of Brake Shaft. Turn ends down to 3/8 inch on lathe. Drill and tap for 8-32 threads 1/4 inch deep.		File:CabooseBrakes BrakeShaftDetail.jpg\|End detail of Brake Shaft. Turn ends down to 3/8 inch on lathe. Drill and tap for 8-32 threads 1/4 inch deep.

Dnevil: /* Assembling Brake Shafts */

2016-06-02T19:31:21Z

Assembling Brake Shafts

← Older revision		Revision as of 14:31, 2 June 2016
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	=== Assembling Brake Shafts ===		=== Assembling Brake Shafts ===

	<gallery widths="300px" heights="300px">		<gallery widths="300px" heights="300px" perrow="2">
	File:CabooseTrucks TurningBrakeShaft.jpg\|Turning one end of a Brake Shaft.		File:CabooseTrucks TurningBrakeShaft.jpg\|Turning one end of a Brake Shaft.
	File:CabooseBrakes TestFit.jpg\|File:CabooseBrakes TestFit.jpg		File:CabooseBrakes TestFit.jpg\|File:CabooseBrakes TestFit.jpg

Dnevil: /* Final Assembly */

2016-06-02T19:30:49Z

Final Assembly

← Older revision		Revision as of 14:30, 2 June 2016
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	<gallery widths="300px" heights="300px" perrow="2">		<gallery widths="300px" heights="300px" perrow="2">
	File:BalanceAirBrakes for Caboose FinalAssembly.jpg\|The trucks with balanced air brakes are assembled onto the undercarriage of the caboose, along with air brake cylinder, reservoir and air switches.		File:BalanceAirBrakes for Caboose FinalAssembly.jpg\|The trucks with balanced air brakes are assembled onto the undercarriage of the caboose, along with air brake cylinder, reservoir and air switches.
			File:CabooseAirBrakeRiggingSupportBracket.jpg\|Support brackets made from flat brass stock were added to keep the levers in place. Nylon lock nuts were later used on both sides of the lever.
	File:CabooseAirBrakeRiggingLeft.jpg\|The brake rigging was kept as simple as possible. This view shows the rigging attached to the plunger of the air cylinder.		File:CabooseAirBrakeRiggingLeft.jpg\|The brake rigging was kept as simple as possible. This view shows the rigging attached to the plunger of the air cylinder.
	File:CabooseAirBrakeRiggingRight.jpg\|This view shows the rigging attached to the body of the air cylinder. Note that the air cylinder is supported solely by the brake rigging.		File:CabooseAirBrakeRiggingRight.jpg\|This view shows the rigging attached to the body of the air cylinder. Note that the air cylinder is supported solely by the brake rigging.
	~~File:CabooseAirBrakeRiggingSupportBracket.jpg\|Support brackets made from flat brass stock were added to keep the levers in place. Nylon lock nuts were later used on both sides of the lever.~~
	File:CabooseAirBrakeTrainLineValve.jpg\|Clippard TV-2S toggle valves were selected because of their small size, low cost, and reliable operation. Note the eye hooks for safety chains, as required by some railroads.		File:CabooseAirBrakeTrainLineValve.jpg\|Clippard TV-2S toggle valves were selected because of their small size, low cost, and reliable operation. Note the eye hooks for safety chains, as required by some railroads.
	</gallery>		</gallery>

Dnevil: /* Final Assembly */

2016-06-02T19:30:27Z

Final Assembly

← Older revision		Revision as of 14:30, 2 June 2016
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	== Final Assembly ==		== Final Assembly ==

	<gallery widths="300px" heights="300px">		<gallery widths="300px" heights="300px" perrow="2">
	File:BalanceAirBrakes for Caboose FinalAssembly.jpg\|The trucks with balanced air brakes are assembled onto the undercarriage of the caboose, along with air brake cylinder, reservoir and air switches.		File:BalanceAirBrakes for Caboose FinalAssembly.jpg\|The trucks with balanced air brakes are assembled onto the undercarriage of the caboose, along with air brake cylinder, reservoir and air switches.
	File:CabooseAirBrakeRiggingLeft.jpg\|The brake rigging was kept as simple as possible. This view shows the rigging attached to the plunger of the air cylinder.		File:CabooseAirBrakeRiggingLeft.jpg\|The brake rigging was kept as simple as possible. This view shows the rigging attached to the plunger of the air cylinder.

Dnevil: /* Video Demo */

2016-02-10T18:48:33Z

Video Demo

← Older revision		Revision as of 13:48, 10 February 2016
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	<videoflash>6xFOI4LY6Vs</videoflash>		<videoflash>6xFOI4LY6Vs</videoflash>
	<br><br>		<br><br>

			== External Links ==

			* [http://212steam.blogspot.com/ Brake shoes from ring stock]

Dnevil at 22:35, 14 December 2015

2015-12-14T22:35:08Z

← Older revision		Revision as of 17:35, 14 December 2015
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	This is my first attempt at building operating air brakes, and I am quite pleased with the results. Air brakes will certainly be added to my other equipment.		This is my first attempt at building operating air brakes, and I am quite pleased with the results. Air brakes will certainly be added to my other equipment.

			<i>Summary: This article describes how to build [[Air_brakes#Pull_to_Apply\|Pull-to-apply balanced air brakes]].</i>

	== Equipment ==		== Equipment ==

← Older revision		Revision as of 14:30, 2 June 2016
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	<gallery widths="300px" heights="300px" perrow="2">		<gallery widths="300px" heights="300px" perrow="2">
	File:BalanceAirBrakes for Caboose FinalAssembly.jpg\|The trucks with balanced air brakes are assembled onto the undercarriage of the caboose, along with air brake cylinder, reservoir and air switches.		File:BalanceAirBrakes for Caboose FinalAssembly.jpg\|The trucks with balanced air brakes are assembled onto the undercarriage of the caboose, along with air brake cylinder, reservoir and air switches.
			File:CabooseAirBrakeRiggingSupportBracket.jpg\|Support brackets made from flat brass stock were added to keep the levers in place. Nylon lock nuts were later used on both sides of the lever.
	File:CabooseAirBrakeRiggingLeft.jpg\|The brake rigging was kept as simple as possible. This view shows the rigging attached to the plunger of the air cylinder.		File:CabooseAirBrakeRiggingLeft.jpg\|The brake rigging was kept as simple as possible. This view shows the rigging attached to the plunger of the air cylinder.
	File:CabooseAirBrakeRiggingRight.jpg\|This view shows the rigging attached to the body of the air cylinder. Note that the air cylinder is supported solely by the brake rigging.		File:CabooseAirBrakeRiggingRight.jpg\|This view shows the rigging attached to the body of the air cylinder. Note that the air cylinder is supported solely by the brake rigging.
	~~File:CabooseAirBrakeRiggingSupportBracket.jpg\|Support brackets made from flat brass stock were added to keep the levers in place. Nylon lock nuts were later used on both sides of the lever.~~
	File:CabooseAirBrakeTrainLineValve.jpg\|Clippard TV-2S toggle valves were selected because of their small size, low cost, and reliable operation. Note the eye hooks for safety chains, as required by some railroads.		File:CabooseAirBrakeTrainLineValve.jpg\|Clippard TV-2S toggle valves were selected because of their small size, low cost, and reliable operation. Note the eye hooks for safety chains, as required by some railroads.
	</gallery>		</gallery>