Sawmill - Design Rationale - Revision history

Marcin: /* Function List */

2012-08-30T21:19:08Z

Function List

← Older revision		Revision as of 21:19, 30 August 2012
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	*use bearings to ride on a flat track?		*use bearings to ride on a flat track?

			==Log Holding and Blade Direction==
			*The blade must spin into the product and into the table or stops or whatever is holding the substrate being worked. Otherwise we make missiles.

	[[Category:Sawmill]]		[[Category:Sawmill]]

Marcin: /* Motor Rationale */

2012-08-30T14:07:00Z

Motor Rationale

← Older revision		Revision as of 14:07, 30 August 2012
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	motors, from full power in one to full power in the other.		motors, from full power in one to full power in the other.

	*Main blade RPM - ~~2000~~ RPM.		*Main blade RPM - 1500 RPM.
	*Edger blades - 3500 RPM.		*Edger blades - 3500 RPM.
	*Simple pulley system, with single pulley of 3x for main blade.		*Simple pulley system, with single pulley of 3x for main blade.

Marcin: /* Motor Rationale */

2012-08-30T14:06:27Z

Motor Rationale

← Older revision		Revision as of 14:06, 30 August 2012
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	*Main blade RPM - 2000 RPM.		*Main blade RPM - 2000 RPM.
	*Edger blades - ~~5000~~ RPM.		*Edger blades - 3500 RPM.
	*Simple pulley system, with single pulley of 3x for main blade.		*Simple pulley system, with single pulley of 3x for main blade.
	*Double pulley for edger blades, about 2.5 ratio for each.		*Double pulley for edger blades, about 2.5 ratio for each.

DanielRavenNest at 14:36, 12 May 2011

2011-05-12T14:36:42Z

← Older revision		Revision as of 14:36, 12 May 2011
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	Things the sawmill must be able to do. See [Sawmill Analysis] for calculations based on these requirements.		Things the sawmill must be able to do. See [[Sawmill Analysis]] for calculations based on these requirements.

	*Must adhere to [[OSE Specifications]]. (Open documentation. Low cost and easy to manufacture/replicate. Design for life, disassembly, repair. Robust, multipurpose.)		*Must adhere to [[OSE Specifications]]. (Open documentation. Low cost and easy to manufacture/replicate. Design for life, disassembly, repair. Robust, multipurpose.)

DanielRavenNest at 14:36, 12 May 2011

2011-05-12T14:36:16Z

← Older revision		Revision as of 14:36, 12 May 2011
Line 1:		Line 1:
	Things the sawmill must be able to do.		Things the sawmill must be able to do. See [Sawmill Analysis] for calculations based on these requirements.

	*Must adhere to [[OSE Specifications]]. (Open documentation. Low cost and easy to manufacture/replicate. Design for life, disassembly, repair. Robust, multipurpose.)		*Must adhere to [[OSE Specifications]]. (Open documentation. Low cost and easy to manufacture/replicate. Design for life, disassembly, repair. Robust, multipurpose.)

Jeremy at 17:31, 6 February 2009

2009-02-06T17:31:31Z

← Older revision		Revision as of 17:31, 6 February 2009
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	*Must cut 4x4s and flat 2x of large width.		*Must cut 4x4s and flat 2x of large width.

			*saw wobble specification 1/16"


	==Motor Rationale==		==Motor Rationale==

Jeremy at 02:05, 6 February 2009

2009-02-06T02:05:55Z

← Older revision		Revision as of 02:05, 6 February 2009
Line 53:		Line 53:
	*use bearings to ride on a flat track?		*use bearings to ride on a flat track?

	[[~~Gategory~~:Sawmill]]
			[[Category:Sawmill]]

Jeremy: New page: Things the sawmill must be able to do. *Must adhere to OSE Specifications. (Open documentation. Low cost and easy to manufacture/replicate. Design for life, disassembly, repair. Robus...

2009-02-04T03:12:10Z

New page: Things the sawmill must be able to do. *Must adhere to OSE Specifications. (Open documentation. Low cost and easy to manufacture/replicate. Design for life, disassembly, repair. Robus...

New page

Things the sawmill must be able to do.

*Must adhere to [[OSE Specifications]]. (Open documentation. Low cost and easy to manufacture/replicate. Design for life, disassembly, repair. Robust, multipurpose.)

*Must be able to cut about 2400-3000 linear feet of dimensional lumber per day.

*Must handle up to 3000 lb logs.

*Must cut 4x4s and flat 2x of large width.

==Motor Rationale==

*Must use [[hydraulic power]] from [[LifeTrac]].

*Power is about 40 hp - available from 55 hp Deutz, at .72 system efficiency.

*[[Hydraulic motors]] utilize 24 gpm at up to 3600 PSI. Each motor is 40 hp, around 700 RPM.

*2 Cushion valves are used for stopping in bidirectional configuration.

*2 spool control valve needs to handle the full fluid flow (24 gpm) to each motor.

*To use power effectively, one should be able to control the amount of flow to each of the two
motors, from full power in one to full power in the other.

*Main blade RPM - 2000 RPM.
*Edger blades - 5000 RPM.
*Simple pulley system, with single pulley of 3x for main blade.
*Double pulley for edger blades, about 2.5 ratio for each.

==Platform Function Rationale==

*Needs a platform that will be able to hold the weight of the motors, pulley system, blades, and frame.
*The weight of the platform will be about 25 lb. per motor, etc for a total of about 200 lbs.
*The platform must be stable enough to make straight cuts.
*The platform should be able to roll in the x axis.
*The platform must move precisely and hold securely in the y and z axes.
*The y and z axis movements must be about 3-4 feet for large logs.

==Function List==

*blades with insert teeth would be best to use, but maybe expensive
*2 edger blades on same axle
*2 edger blades are adjustable
*Move onto hydraulic log handling later
*Move on to automatic sawmill operation with remote control, for ease of cutting.
*Allow for log turning in addition to taking slices out of the wood
*Safety cage around blades
*Blade cooling soapy water?
*Logs loaded with tractor loader
*Mechanism to secure log to track
*use bearings to ride on a flat track?

[[Gategory:Sawmill]]