bendsum
starting to spend too much on rocks
Member since October 2008
Posts: 140
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Post by bendsum on Aug 20, 2009 3:19:42 GMT -5
I am in the process of building a 14" slab saw and my question is with a 1725 rpm motor what pulley sizes do i need? I have some that are 2" 4" and i think a 6" or 7" is there a combo in there that will work ?
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jimrbto
noticing nice landscape pebbles
Member since April 2007
Posts: 94
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Post by jimrbto on Aug 20, 2009 4:55:19 GMT -5
The first thing to do is see what your saw blade maker suggests as a maximum recommended speed. Then look at a blade/pulley speed and selection chart; you can find on at: www.diamondpacific.com/determiningsawsp.htmlTry to stay near the mid to lower end for longer blade life, or upper end for faster cutting speed. That will be your decision. Jim |
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drjo
fully equipped rock polisher
Honduran Opal & DIY Nut
Member since May 2008
Posts: 1,581
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Post by drjo on Aug 20, 2009 7:33:24 GMT -5
These speeds are for a diamond blade... A 2" on the motor & the 4" at the blade will give you 850 rpm's A 4" on the motor & the 6"ish on the blade will get you ~1000 rpm's Those will keep you in a nice comfort zone.  Dr Joe . |
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bendsum
starting to spend too much on rocks
Member since October 2008
Posts: 140
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Post by bendsum on Aug 20, 2009 20:12:54 GMT -5
thank you i will try the 2" and 4" combo
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NDK
Cave Dweller 
Member since January 2009
Posts: 9,440
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Post by NDK on Aug 20, 2009 20:46:07 GMT -5
Dude, we need pictures!!!
Nate
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bendsum
starting to spend too much on rocks
Member since October 2008
Posts: 140
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Post by bendsum on Aug 20, 2009 21:01:22 GMT -5
its close to being done got a several more hours work left like mounting the swing arm mounting the blade aligning it wiring here are a few pics the box sorry its sideways  the swingarm  the arbor from covington  i do not have pics of the blade from lopacki or the weight i made frome wheel weights |
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NDK
Cave Dweller
Member since January 2009
Posts: 9,440
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Post by NDK on Aug 21, 2009 20:55:56 GMT -5
Thanks for the pics. Looks great so far.
Nate
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bendsum
starting to spend too much on rocks
Member since October 2008
Posts: 140
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Post by bendsum on Aug 21, 2009 21:27:30 GMT -5
ive got the arbor mounted the swingarm shaft cut to size it all has a coat or two of white paint will be takin the sewer cleaning rig apart tomorrow for the motor and wiring should be ready to go by next fri now i just gotta find some mineral oil for less the $15 a gal
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NDK
Cave Dweller
Member since January 2009
Posts: 9,440
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Post by NDK on Aug 21, 2009 22:32:49 GMT -5
There was a post I read a while back about where people get oil.
I think horse laxitive was one lower price, damn I can't remember the others...
Nate
Edit - did some searching. technical grade light white mineral oil was one suggestion. Several people seem to use light weight hydraulic oil with no issues, and the horse stuff I gues sis technically vetrinary grade or something like that.
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Post by johnjsgems on Aug 21, 2009 23:29:24 GMT -5
Horse product is a food grade mineral oil. Some may be to thick for cold climate areas.
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Post by johnjsgems on Aug 22, 2009 9:02:22 GMT -5
How are you going to seal the tank?
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bendsum
starting to spend too much on rocks
Member since October 2008
Posts: 140
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Post by bendsum on Aug 22, 2009 13:58:23 GMT -5
all 90 deg areas have been rounded with bondo then the whole inside has a coat of fiberglass resin
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NDK
Cave Dweller
Member since January 2009
Posts: 9,440
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Post by NDK on Aug 22, 2009 21:35:33 GMT -5
Wow, that outta do it. Nice.
Nate
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bendsum
starting to spend too much on rocks
Member since October 2008
Posts: 140
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Post by bendsum on Aug 22, 2009 22:13:45 GMT -5
got it almost done need to work on the cable feed and bolt on the toggle switch I did a test run useing water it cut good but no more untill i get oil
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bendsum
starting to spend too much on rocks
Member since October 2008
Posts: 140
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Post by bendsum on Aug 23, 2009 15:22:27 GMT -5
well here it is same as done i am goin with a 3" pulley on the motor and a 7" on the arbor it will give me about 740 rpm  |
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drjo
fully equipped rock polisher
Honduran Opal & DIY Nut
Member since May 2008
Posts: 1,581
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Post by drjo on Aug 23, 2009 16:43:21 GMT -5
You do good work, can't wait to see it in motion! ;D
Thank goodness you painted it white so you could see if there is any oil spatter ;D
Thanks for sharing.
Dr Joe
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bendsum
starting to spend too much on rocks
Member since October 2008
Posts: 140
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Post by bendsum on Aug 23, 2009 20:31:03 GMT -5
i know i got a few places to seal up still running it with water let me see all the leaks wrote myself a note to close the lid next time before turning it on the paint was some i had left from another unfinished project
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Post by johnjsgems on Aug 23, 2009 21:45:43 GMT -5
Dr, Joe has a twisted sense of humor. May be my long lost twin. Most oil saws after much use are a dirty oil color.
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bendsum
starting to spend too much on rocks
Member since October 2008
Posts: 140
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Post by bendsum on Aug 24, 2009 1:44:31 GMT -5
yeah i know main reason for whit was to see the layout lines for the holes and all that i know its gonna get dirty and the while will be brown or sum other weird color i really need sum oil now so i can start cuttin these ole creek and dirt road rocks
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drjo
fully equipped rock polisher
Honduran Opal & DIY Nut
Member since May 2008
Posts: 1,581
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Post by drjo on Aug 24, 2009 9:51:23 GMT -5
Dr, Joe has a twisted sense of humor. May be my long lost twin. Most oil saws after much use are a dirty oil color. ;D |
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