CreatingScreenprintingStencils - Revision history

Jo dkbt: /* Lasercutting paper stencils */

2016-06-14T14:41:57Z

‎Lasercutting paper stencils

2016-01-19T14:57:03Z

‎Characteristics / limitations

2016-01-14T13:24:36Z

‎Lasercutting paper stencils

2015-12-19T13:47:24Z

‎Paper stencils

2015-12-19T13:39:31Z

‎Lasercutting paper stencils

2015-12-19T13:38:33Z

‎Lasercutting paper stencils

2015-12-19T13:07:13Z

‎Summary

2015-12-19T13:05:50Z

‎Lasercutting paper stencils

2015-12-19T12:45:04Z

‎Lasercutting paper stencils

2015-12-19T12:44:01Z

‎Lasercutting paper stencils

@@ Line 30: / Line 30: @@
 Use a whole sheet of A2+ newsprint paper.
-Recommended cutter settings: speed 64; power 15.
+Recommended cutter settings: '''speed 64; power 15'''.
 Many designs can be printed with flat colours.

@@ Line 23: / Line 23: @@
 * Can support stencils with 'islands' but note that larger lettering and designs work better than more detailed ones.
 * Reverse the design before cutting.  We recommend that the stencil is stuck onto the underside of the screen, closest to the workpiece.  This avoids the squeegee catching on pieces of the vinyl and peeling them away.  Putting the stencil on the print side (underside) of the screen also gives a more precise print.
 ==== Lasercutting paper stencils ====

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 * On the '''Trace''' tab select '''Trace the drawing under the tiles'''
 * In section 3 '''Apply the value to the clones'''' select '''Size'''. (Unselect '''Colour''' and '''Opacity''' as these are not relevant to the result.) '''Presence''' controls whether lighter areas are filled with small dots or left blank, which is a choice which can be made for a particular design.
-* Save your work as Inkscape may crash attempting this!
+* Save your work at this point as Inkscape may crash attempting this process!
 * Click '''Create'''
-* Note that this process is quite intensive and may take several minutes. More complex images may fail to complete. It is advisable to remove background detail from photographs and use a dot size which does not give a large number of dots.
+* Note that as this process is quite intensive for Inkscape it may take several minutes. More complex images may fail to complete. So it is advisable to remove background detail from photographs and use a dot size which does not give a large number of dots.
 * When the halftone pattern looks as you want it, delete the bitmap image and export the image as DXF ready for cutting.

@@ Line 10: / Line 10: @@
 === Paper stencils ===
-* Use newsprint paper (50 gsm).  This is thin and will cling to the screen when wetted with ink.
+* Use newsprint paper.  This is thin (50 gsm) and will cling to the screen when wetted with ink. Office paper (80 gsm) is too thick to cling and then wrinkles when wetted without contact with the screen to support it.
 ==== Characteristics / limitations ====

@@ Line 27: / Line 27: @@
 A lasercut stencil can make use of shapes or lettering created in the usual way (using Inkscape).
 Use a whole sheet of A2+ newsprint paper.
-Recommended cutter settings: speed 64 / power 15
 Many designs can be printed with flat colours.

@@ Line 26: / Line 26: @@
 A lasercut stencil can make use of shapes or lettering created in the usual way (using Inkscape).
-This is used to print designs with flat colours.
+Use a whole sheet of A2+ newsprint paper.
 It is also possible to create shaded colours, with some limitations. Screenprinting shaded colours uses the traditional technique of '''halftoning''' -- splitting an image into small dots or lines of varying sizes.

@@ Line 5: / Line 5: @@
 === Summary ===
-# Choose the method best suited to your design
+# Choose the method best suited to your design based on the characteristics and limitations of each method listed below.
-# Choose lasercut or handcut '''paper''' or cut '''sticky vinyl'''.  Note: only people trained on the lasercutter can use it.
+# Choose '''paper''' (lasercut or handcut) or cut '''sticky vinyl'''.  Note: only people trained on the lasercutter can use it.
 # Remember to pay for any newsprint paper and/or sticky vinyl used

← Older revision		Revision as of 13:05, 19 December 2015
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	* Click '''Create'''		* Click '''Create'''
	* Note that this process is quite intensive and may take several minutes. More complex images may fail to complete. It is advisable to remove background detail from photographs and use a dot size which does not give a large number of dots.		* Note that this process is quite intensive and may take several minutes. More complex images may fail to complete. It is advisable to remove background detail from photographs and use a dot size which does not give a large number of dots.
		+	* When the halftone pattern looks as you want it, delete the bitmap image and export the image as DXF ready for cutting.

← Older revision		Revision as of 12:44, 19 December 2015
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	It is also possible to create shaded colours, with some limitations. Screenprinting shaded colours uses the traditional technique of '''halftoning''' -- splitting an image into small dots or lines of varying sizes.		It is also possible to create shaded colours, with some limitations. Screenprinting shaded colours uses the traditional technique of '''halftoning''' -- splitting an image into small dots or lines of varying sizes.
		+
		+	'''Creating halftones with Inkscape'''
		+
		+	* Import a bitmap
		+	* Create a small filled circle (or other shape) at one corner of the bitmap
		+	* Open '''Edit > Clone > Create Tiled Clones ...'''
		+	* On the '''Trace''' tab select '''Trace the drawing under the tiles'''
		+	* In section 3 '''Apply the value to the clones'''' select '''Size'''. (Unselect '''Colour''' and '''Opacity''' as these are not relevant to the result.)
		+	'''Presence''' controls whether lighter areas are filled with small dots or left blank, which is a choice for a particular design.
		+	* Save your work as Inkscape may crash attempting this!
		+	* Click '''Create'''
		+	* Note that this process is quite intensive and may take several minutes. More complex images may fail to complete. It is advisable to remove background detail from photographs and use a dot size which does not give a large number of dots.