hound593
off to a rocking start
Member since April 2016
Posts: 8
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Post by hound593 on Apr 7, 2018 14:07:48 GMT -5
so, i have collected enough rough, now it is time to get my equip. made. i am making a 12" drop saw and would like to add a sliding table so i can trim with the same saw. i am copying the design in the
pics and what i can not find are the u grove wheels (i think that is what they are called). some of the older slab saws use this kind of wheel, but i can not find the wheels as replacements on their
website. i could use linear bearings, however i do not know how fast they will get clogged with mud. the u wheels would also make removing the table for cleaning much easier. i would like to use 3/4
to 1" (19 - 25mm) shaft for the ways, as i have these sizes in both stainless steel and hardened steel. i am open to alternative methods for doing this on the cheap.
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hound593
off to a rocking start
Member since April 2016
Posts: 8
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Post by hound593 on Sept 3, 2016 10:02:06 GMT -5
i just wanted to know where i can get the cheapest ungraded tumbling grit? thank you.
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hound593
off to a rocking start
Member since April 2016
Posts: 8
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Post by hound593 on Jun 28, 2016 21:10:15 GMT -5
no, the dia. lap has a 1/2" arbor hole. also, plan on using sc disc.
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hound593
off to a rocking start
Member since April 2016
Posts: 8
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Post by hound593 on Jun 28, 2016 13:03:51 GMT -5
variable speed dc motors are expensive, that is way i am using an ac moter with step pulleys. so i need the rpms for both so when i make my pulley i can hit both ranges.
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hound593
off to a rocking start
Member since April 2016
Posts: 8
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Post by hound593 on Jun 27, 2016 21:11:22 GMT -5
i know this has been asked before, but i can never find the info when i need it. i am making a 12" flat lap and need to know the rpm to use. should i say the sfm as that would be more usefull. i plan on using both diamond laps and loose grit. any info would be most helpfull.
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hound593
off to a rocking start
Member since April 2016
Posts: 8
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Post by hound593 on May 7, 2016 23:48:07 GMT -5
thanks for all the replys everyone. i have the mill on hand and as to the slurry and gibb problem, i wanted to try it dry with a shop vac to control the dust, to give a better idea of the tools at my disposal i have a 12" diamond lap (working on making the lapping machine right now), silicon carbide grind wheels & mounted points. a couple of diamond saw blades, seg. cup wheels, 8" expanding wheel, a couple 6" diamond wheels, and an impresive collection of mounted points in just about every shape and grit. i will consentrate on getting the flat lap finished.
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hound593
off to a rocking start
Member since April 2016
Posts: 8
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Post by hound593 on Apr 30, 2016 15:41:40 GMT -5
turritella is what i am going to do first. i also want to try jasper, agate, howlite, petrified wood, lapis, etc... prety much everything, in other words the whole range of hardnesses.
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hound593
off to a rocking start
Member since April 2016
Posts: 8
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Post by hound593 on Apr 30, 2016 10:46:58 GMT -5
hello everyone, i am new to lapidary and have a question on working stones. i am wanting to make a set of knife scales out of rocks/stones. i don't know if i will persue the hobbie so for now, i don't want to invest lots of $$$. i am going to cut a couple of slabs with a miter saw, which i know will leave a rough surface, then true up the surfaces using a milling machine. my idea is to mount a segmented cup wheel, the kind used for surfacing concrete, in the mill and then clean up the faces. i think i can also flatten the rough outside of the stone to maximize the number of slabs i can get out of the rough. now the question, what style of wheel would work well without chipping the edges of the scales. what grit? i am looking at a 4-5" wheel due to price. i'm not looking for a polished surface from the operation just a nice flat surface without deep scratches or gouges. these scale will be contourer latter with a flex shaft. an advise is appreciated.
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