Fiber Rough Cut Procedure - Revision history

Warrenmj at 13:40, 5 January 2018

2018-01-05T13:40:15Z

Warrenmj at 13:39, 5 January 2018

2018-01-05T13:39:53Z

Warrenmj: Giving information on how long to cut the fibers.

2017-08-15T19:08:54Z

Giving information on how long to cut the fibers.

Warrenmj: Fixing box image links

2017-07-12T15:35:50Z

Fixing box image links

Warrenmj at 15:34, 12 July 2017

2017-07-12T15:34:20Z

Warrenmj at 13:58, 26 June 2017

2017-06-26T13:58:18Z

Warrenmj at 13:56, 26 June 2017

2017-06-26T13:56:01Z

Warrenmj: Changing "3 cm" to "2 cm" about the scintillating fiber

2017-06-19T18:36:24Z

Changing "3 cm" to "2 cm" about the scintillating fiber

Liana at 17:40, 9 June 2014

2014-06-09T17:40:29Z

Bwillis at 16:26, 9 June 2014

2014-06-09T16:26:36Z

@@ Line 12: / Line 12: @@
 * Locate logbook used for data recording.
 * Make sure the Dremel cutting tool is unplugged then visually inspect:
-** Verify electrical cord is in good working order.
+** Verify that the electrical cord is in good working order.
 ** Make sure the power switch is in the off position.
 * Put a diamond blade on the Dremel. (Ensure that the cutting wheel is secure and not cracked.)

@@ Line 12: / Line 12: @@
 * Locate logbook used for data recording.
 * Make sure the Dremel cutting tool is unplugged then visually inspect:
 ** Verify electrical cord is in good working order.
 ** Make sure the power switch is in the off position.
-* Put a diamond blade on the Dremel.
+* Put a diamond blade on the Dremel. (Ensure that the cutting wheel is secure and not cracked.)
 [[File:Dremel2.JPG|thumb|center|upright|The Dremel tool used to cut the fibers, with a diamond blade and foam pad, and an example of appropriate eye wear.]]

← Older revision		Revision as of 19:08, 15 August 2017
Line 6:		Line 6:

	'''Safety Information:''' Wear eye protection to deflect fiber debris. Ensure that sleeves are rolled up, hair is tied back, and jewelry is secure. A ventilation hose is located nearby to remove any particles which may be generated.		'''Safety Information:''' Wear eye protection to deflect fiber debris. Ensure that sleeves are rolled up, hair is tied back, and jewelry is secure. A ventilation hose is located nearby to remove any particles which may be generated.
		+
		+	The light guides need to end up 168 +/- 0.5 cm long. Using the grinding wheel to polish them (begun summer 2017), it is convenient to shorten the fibers by about 0.2 inch (0.508 cm), so it would make sense to rough cut the fibers to a length of 168.5 cm.

	==Procedure==		==Procedure==

@@ Line 76: / Line 76: @@
 {|style="margin: 0 auto;"
-|[[File:box6.JPG|thumb|center|Fibers in various stages of production are stored in the intermediate storage box.]]
+|[[File:box6.jpeg|thumb|center|Fibers in various stages of production are stored in the intermediate storage box.]]
-|[[File:box1.jpg|thumb|center|Wider view of the intermediate storage box.]]
+|[[File:box1.jpeg|thumb|center|Wider view of the intermediate storage box.]]
 |}
 * Fibers that do not pass dimensional inspection are either discarded or kept in a separate location, with non-compliant areas marked with painters' tape.

@@ Line 13: / Line 13: @@
 ** Verify electrical cord is in good working order.
 ** Make sure the power switch is in the off position.
-[[File:JK Dremel.JPG|thumb|center|upright|The Dremel tool used to cut the fibers and an example of appropriate eye wear.]]
+[[File:Dremel2.JPG|thumb|center|upright|The Dremel tool used to cut the fibers, with a diamond blade and foam pad, and an example of appropriate eye wear.]]
 * Plug in the Dremel tool.
@@ Line 40: / Line 41: @@
 *** After inspection, position the side panel in place and secure with black duct tape.
 *** Make sure that all exposed joints are covered.
 * Place the fiber in the appropriately marked slot.
-** Place the end of the fiber against the mark that provides the fiber stop.
+** Place the end of the fiber against the mark that provides the fiber stop. For specifications on the fiber length, see the [https://docs.google.com/document/d/1rHl580R3X3r2yn3hw1Mh-JC136NzWyE6IE_SoGRjR50/edit specifications document].
-** Place weights to hold the fiber in place and to keep it from bending to its original position while cutting.
+** Place weights to hold the fiber in place and to keep it from bending to its original position while cutting. Be sure to place the side covered in rubber gasket on the fiber.
 * Hold the spool end of the fiber in place with your left hand.
 * Don safety goggles.
 * Set the Dremel cutting speed to 7.
 * Cut the fiber along the notch with the Dremel.
@@ Line 57: / Line 60: @@
 * Ensure that the clip has the fiber firmly secured in place before letting go of the fiber.
 ** If needed, place the weight upon it.
-** Ensure that the end covered in sponge gasket is placed against the fiber, so as not to damage the fiber cladding.
+** Ensure that the side covered in sponge gasket is placed against the fiber, so as not to damage the fiber cladding.
 * Carefully remove the cut fiber from the slot and wipe it with a lint free cloth.
 ** To prevent flaring of the fiber cladding, start by wiping from the center of the fiber and continue the cleaning stroke until you are well past the end of the fiber.  This will help to prevent any snagging and tearing back of the cladding from its core.
 * Measure and record the cross-sectional dimensions of the fiber in the logbook.
 ** For SciFi: only one measurement at the center of the 2 cm fiber is required.
-** For light guide: align the fiber to the marks indicated on the wood guide and take the required measurements at the points designated by the markings.
+** For light guide: align the fiber to the marks indicated on the wood guide and take the required measurements at the points designated by the markings. See [[Fiber Measuring Procedure]] for details.
-[[File:JK Micrometer.JPG|thumb|center|The micrometer used to take the cross-sectional dimensions of the fibers.]]
+[[File:JK Micrometer.JPG|thumb|center|The micrometer used to take the cross-sectional dimensions of the fibers. [Note: out of date as of 17/12/17]]]
 * Visually inspect the fiber for damage, paying particular attention to possible
@@ Line 72: / Line 76: @@
 {|style="margin: 0 auto;"
-|[[File:JK Intermediate Dark Box.JPG|thumb|center|Fibers in various stages of production are stored in the intermediate storage box.]]
+|[[File:box6.JPG|thumb|center|Fibers in various stages of production are stored in the intermediate storage box.]]
-|[[File:LH_RoughCutProcedure_DarkBox.jpg|thumb|center|Wider view of the intermediate storage box.]]
+|[[File:box1.jpg|thumb|center|Wider view of the intermediate storage box.]]
 |}
 * Fibers that do not pass dimensional inspection are either discarded or kept in a separate location, with non-compliant areas marked with painters' tape.

← Older revision		Revision as of 13:58, 26 June 2017
Line 25:		Line 25:

	*Flip up the opening to the spool storage box to expose the two slots with the protruding optical fibers.		*Flip up the opening to the spool storage box to expose the two slots with the protruding optical fibers.
		+	*Don powder-free gloves.

	{\|style="margin: 0 auto;"		{\|style="margin: 0 auto;"

@@ Line 1: / Line 1: @@
 The optical fibers from Saint Gobain Crystals were shipped to UConn in several ~26 inch diameter cardboard spools.  Due to concerns over UV light exposure, a single spool of BCF-20 (scintillating fiber) and BCF-98 (light guide) are stored on the end of the fiber cutting table in a light tight enclosure for construction use.  The remaining inventories of fibers have been set aside in the manufacturer's shipping box for future use.
 The fiber cutting table was designed as a dual purpose workstation.  The following steps explain how this workstation is used to provide a way of cutting the fibers from their spools (a.k.a. rough cut).  Later sections of procedure detail the use of parts of this work station as an alignment tool for the long light guides during fiber splicing.
-'''Procedure'''
+'''Safety Information:''' Wear eye protection to deflect fiber debris. Ensure that sleeves are rolled up, hair is tied back, and jewelry is secure. A ventilation hose is located nearby to remove any particles which may be generated.
-* Don safety equipment: eye protection.
+==Procedure==
 * Locate logbook used for data recording.
 * Make sure the Dremel cutting tool is unplugged then visually inspect:
@@ Line 53: / Line 54: @@
 * Turn off the Dremel and set it aside.
 * Ensure that the clip has the fiber firmly secured in place before letting go of the fiber.
-** If needed place the weight upon it.
+** If needed, place the weight upon it.
 ** Ensure that the end covered in sponge gasket is placed against the fiber, so as not to damage the fiber cladding.
-* Carefully remove the cut fiber from the slot and wipe down with a lint free cloth.
+* Carefully remove the cut fiber from the slot and wipe it with a lint free cloth.
 ** To prevent flaring of the fiber cladding, start by wiping from the center of the fiber and continue the cleaning stroke until you are well past the end of the fiber.  This will help to prevent any snagging and tearing back of the cladding from its core.
-* Record the cross-sectional dimensions of the fiber in the logbook.
+* Measure and record the cross-sectional dimensions of the fiber in the logbook.
 ** For SciFi: only one measurement at the center of the 3 cm fiber is required.
 ** For light guide: align the fiber to the marks indicated on the wood guide and take the required measurements at the points designated by the markings.