Anybody have any hardened steel sanding arbors 3/8-10 for sale?
Try John AZer name RocketQ. I bought one set from John was excellent made.
http://forums.azbilliards.com/showthread.php?t=171121
The cost of the carbide sleeves alone is expensive, and the mandrel needs to be very true, the carbide requires grinding, and It's some nasty stuff to breath in.That price does not sound unreasonable to Me. You could pay much more for them elsewhere.
Carbide drill bushings are used for the sanding mandrells. They are about $35-$40 Each. Machine a piece of Brass (5.00$)to about .003 - .005 over the ID of the drill bushing then freeze it. Insert it in the drill bushing and let it get to room temperature. Drill the desired female thread on one and the male thread on the other. Take it to your local machine shop that can grind carbide to desired OD..(50.00Ea).. Mine cost me about $190 to make..
Not all shops can grind carbide tho..
Just my 2 cents..
good luck
http://www.allamericanproducts.com/bush/pc_10.htm#All*American*Products*Co.
Yes, I'm aware of the costs involved, although I may have paid a few bucks more for My bushings then You did, not much more though. That depends on which length You used, Mine are slightly longer then 1". I did not mention these things though, because I didn't want to hurt anyone's action. Not saying this was Your intention, I realize You were just trying to help a fellow cuesmith out, and I can appreciate that as much as anyone, but never the less this was "My" reason for not posting the info Publicly.
I have dealt with several distributors over the years, and sharing such knowledge could have resulted in them dropping me as a dealer. Maybe You have dealt with distributors Yourself, and can appreciate what I am saying, so I will post It this way. Even at Your actual costs which would be less then Mine as I mentioned before, The pricing that these arbors are being sold for are still under wholesale pricing, If these were purchased through a actual dealer at retail prices they would cost Much more. I have seen carbide sanding mandrels in the past that were selling for as much as twice or more of the asking Price mentioned here in this thread.
Here's a picture of a couple of bushings as They look before being used in mandrels.
I wasn't trying to bust anybodies balls about the price of the retail mandrels.
My 1st set was from Rocker..A great set too...At a great price..Some choose to buy them and some may choose to make there own as they do with other cue making fixtures...I dont know what the big secret is anyway. It doesn't take a rocket scientist to look at the pics on the dealers site that sells them to figure out how to do it..It was just a way of saving a fellow cue maker several hundred bucks..I do that every chance i can.. (As most of you well know)
Carbide drill bushings are used for the sanding mandrells. They are about $35-$40 Each. Machine a piece of Brass (5.00$)to about .003 - .005 over the ID of the drill bushing then freeze it. Insert it in the drill bushing and let it get to room temperature. Drill the desired female thread on one and the male thread on the other. Take it to your local machine shop that can grind carbide to desired OD..(50.00Ea).. Mine cost me about $190 to make..
Not all shops can grind carbide tho..
Just my 2 cents..
good luck
http://www.allamericanproducts.com/bush/pc_10.htm#All*American*Products*Co.
Grinding carbide is expensive. You need diamond wheel grinders,and you need dust extraction if you don't want a lung disease.
I am sure that some who have access to the machinery may be able to grind a few at a favourable price,but you don't get something for nothing. Precision does cost money,as it takes time and skill. A cheap job that is not generally accurate, which means , all your product is not accurate either.
Just because it was made on CNC or that you paid for it, does not mean it was accurate or is correct.
I do know that tungsten carbide is pretty expensive. Taking into account the brass, time for assembly, custom machine work and grinding, I can understand the price. Not to mention building these arbors to a .0005 tolerance. I just wonder, and hopefully someone with experience and knowledge can answer, is carbide necessary? Would tool steel not be sufficient?
I do know that tungsten carbide is pretty expensive. Taking into account the brass, time for assembly, custom machine work and grinding, I can understand the price. Not to mention building these arbors to a .0005 tolerance. I just wonder, and hopefully someone with experience and knowledge can answer, is carbide necessary? Would tool steel not be sufficient?