Sawmill Questions - Revision history

DanielRavenNest at 23:56, 24 April 2011

2011-04-24T23:56:58Z

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	* What is the rationale for a circular saw instead of a bandsaw?		* What is the rationale for a circular saw instead of a bandsaw?
	** Both have strength and weaknesses. Circular saws are simpler to drive - they can be connected directly to a hydraulic motor though a belt might be required to increase the speed. Circular saws are repairable (see below) and easier to fabricate. OTOH, bandsaws have a deeper cut which means that bigger logs can be processed. Most commercial portable saw mills are based on a bandsaw.		** Both have strength and weaknesses. Circular saws are simpler to drive - they can be connected directly to a hydraulic motor though a belt might be required to increase the speed. Circular saws are repairable (see below) and easier to fabricate. OTOH, bandsaws have a deeper cut which means that bigger logs can be processed. Most commercial portable saw mills are based on a bandsaw.

			** Bandsaws have a narrower kerf because the blade is kept straight in tension, while a circular blade must be thick enough to resist bending. Therefore bandsaws both have less kerf loss (sawdust made while cutting), and require less power to run. I would argue the point of easier to fabricate. This video shows a home-made one, and I have worked with commercially manufactured Wood-Mizer bandsaws, and they are pretty simple devices. [[User:DanielRavenNest\|DanielRavenNest]] 16:56, 24 April 2011 (PDT)
			[http://www.youtube.com/watch?v=ub6_pACrWYw Homemade Band Sawmill at YouTube]

	* Can new teeth be attached to a regular circular saw blade through brazing?		* Can new teeth be attached to a regular circular saw blade through brazing?

Mjn: /* Questions */

2011-04-21T12:30:17Z

Questions

← Older revision		Revision as of 12:30, 21 April 2011
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	=Questions=		=Questions=

	*What is the rationale for a circular saw instead of a bandsaw?		* What is the rationale for a circular saw instead of a bandsaw?
			** Both have strength and weaknesses. Circular saws are simpler to drive - they can be connected directly to a hydraulic motor though a belt might be required to increase the speed. Circular saws are repairable (see below) and easier to fabricate. OTOH, bandsaws have a deeper cut which means that bigger logs can be processed. Most commercial portable saw mills are based on a bandsaw.

	*Can new teeth be attached to a regular circular saw blade through brazing?		* Can new teeth be attached to a regular circular saw blade through brazing?
			** Yes, but it is a technique that requires some skill. They can also be welded back in place. You need a fine point welder to do this and care must be taken to avoid warping the blade. Blacksmiths used to forge-weld teeth onto broken circular saw blades.

	*How should the saws be attached to the vertical posts?		* How should the saws be attached to the vertical posts?
	**Maybe with square tubing.		** Maybe with square tubing.

	*How sturdy do the saw assembly, posts, and cage need to be?		* How sturdy do the saw assembly, posts, and cage need to be?
	**The saws should be about 80 lbs, and with the posts and cage about 255 total.		** The saws should be about 80 lbs, and with the posts and cage about 255 total.

	*What forces are going to be acting upon the frame?		* What forces are going to be acting upon the frame?
	**Try doing a Finite Element Analysis test.		** Try doing a Finite Element Analysis test.

	~~==Answered questions==~~		* What is the industry standard for rollers/bearings on sawmills? How should the bearings be made?
			** http://www.tractorbynet.com/forums/build-yourself/136942-homemade-dimensional-sawmill.html <blockquote>Leejohn Leave the flat on the bottom and us the V on top with wipers to clean off the saw dust. I would use larger bearings and a good size V roller even if you have to make them.</blockquote>
	*What is the industry standard for rollers/bearings on sawmills? How should the bearings be made?
	**http://www.tractorbynet.com/forums/build-yourself/136942-homemade-dimensional-sawmill.html <blockquote>Leejohn Leave the flat on the bottom and us the V on top with wipers to clean off the saw dust. I would use larger bearings and a good size V roller even if you have to make them.</blockquote>

	[[Category:Red Pages]]		[[Category:Red Pages]]
	[[Category:Sawmill]]		[[Category:Sawmill]]

Jdwheeler42: /* Questions */ Added question on rationale

2011-04-21T05:43:30Z

Questions: Added question on rationale

← Older revision		Revision as of 05:43, 21 April 2011
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	=Questions=		=Questions=

			*What is the rationale for a circular saw instead of a bandsaw?

	*Can new teeth be attached to a regular circular saw blade through brazing?		*Can new teeth be attached to a regular circular saw blade through brazing?

WikiSysop: /* Questions */

2009-02-10T00:54:18Z

Questions

← Older revision		Revision as of 00:54, 10 February 2009
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	=Questions=		=Questions=

			*Can new teeth be attached to a regular circular saw blade through brazing?

	*How should the saws be attached to the vertical posts?		*How should the saws be attached to the vertical posts?
	*How sturdy ~~does~~ the ~~frame~~ need to be?		**Maybe with square tubing.

			*How sturdy do the saw assembly, posts, and cage need to be?
			**The saws should be about 80 lbs, and with the posts and cage about 255 total.

	*What forces are going to be acting upon the frame?		*What forces are going to be acting upon the frame?
			**Try doing a Finite Element Analysis test.

	==Answered questions==		==Answered questions==
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	*What is the industry standard for rollers/bearings on sawmills? How should the bearings be made?		*What is the industry standard for rollers/bearings on sawmills? How should the bearings be made?
	**http://www.tractorbynet.com/forums/build-yourself/136942-homemade-dimensional-sawmill.html <blockquote>Leejohn Leave the flat on the bottom and us the V on top with wipers to clean off the saw dust. I would use larger bearings and a good size V roller even if you have to make them.</blockquote>		**http://www.tractorbynet.com/forums/build-yourself/136942-homemade-dimensional-sawmill.html <blockquote>Leejohn Leave the flat on the bottom and us the V on top with wipers to clean off the saw dust. I would use larger bearings and a good size V roller even if you have to make them.</blockquote>


	[[Category:Red Pages]]		[[Category:Red Pages]]
	[[Category:Sawmill]]		[[Category:Sawmill]]

Jeremy at 07:01, 4 February 2009

2009-02-04T07:01:55Z

← Older revision		Revision as of 07:01, 4 February 2009
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	*What is the industry standard for rollers/bearings on sawmills? How should the bearings be made?		*What is the industry standard for rollers/bearings on sawmills? How should the bearings be made?
	**<blockquote>Leejohn Leave the flat on the bottom and us the V on top with wipers to clean off the saw dust. I would use larger bearings and a good size V roller even if you have to make them.</blockquote>		**http://www.tractorbynet.com/forums/build-yourself/136942-homemade-dimensional-sawmill.html <blockquote>Leejohn Leave the flat on the bottom and us the V on top with wipers to clean off the saw dust. I would use larger bearings and a good size V roller even if you have to make them.</blockquote>


	[[Category:Red Pages]]		[[Category:Red Pages]]
	[[Category:Sawmill]]		[[Category:Sawmill]]

Jeremy at 06:52, 4 February 2009

2009-02-04T06:52:21Z

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	=Questions=		=Questions=

	~~#What is the industry standard for rollers/bearings on sawmills?~~		*How should the saws be attached to the vertical posts?
	#How should the saws be attached to the vertical posts?		*How sturdy does the frame need to be?
	#How sturdy does the frame need to be?		*What forces are going to be acting upon the frame?
	#What forces are going to be acting upon the frame?
			==Answered questions==

			*What is the industry standard for rollers/bearings on sawmills? How should the bearings be made?
			**<blockquote>Leejohn Leave the flat on the bottom and us the V on top with wipers to clean off the saw dust. I would use larger bearings and a good size V roller even if you have to make them.</blockquote>

	~~=Answered questions=~~

	[[Category:Red Pages]]		[[Category:Red Pages]]
	[[Category:Sawmill]]		[[Category:Sawmill]]

Jeremy at 00:45, 4 February 2009

2009-02-04T00:45:09Z

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	These are unanswered questions about the sawmill. If you have an answer please edit the page or send and email to jeremymaso at gmail dot com		These are unanswered questions about the sawmill. If you have an answer please edit the page or send and email to jeremymaso at gmail dot com

			Thank you!

	=Questions=		=Questions=

Jeremy at 00:42, 4 February 2009

2009-02-04T00:42:53Z

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	[[Category:Red Pages]]		[[Category:Red Pages]]
			[[Category:Sawmill]]

Jeremy: /* Questions */

2009-02-04T00:41:35Z

Questions

← Older revision		Revision as of 00:41, 4 February 2009
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	=Questions=		=Questions=

	What is the industry standard for rollers/bearings on sawmills?		#What is the industry standard for rollers/bearings on sawmills?
			#How should the saws be attached to the vertical posts?
			#How sturdy does the frame need to be?
			#What forces are going to be acting upon the frame?

	=Answered questions=		=Answered questions=

	[[Category:Red Pages]]		[[Category:Red Pages]]

Jeremy at 15:40, 3 February 2009

2009-02-03T15:40:12Z

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	=Answered questions=		=Answered questions=

			[[Category:Red Pages]]