Hello guys
Since my return I have managed to get some more done on this tool build, I had to notch out a pocket so the handle that transverses the spindle head does not hit it or my hand, as you can see i used this space to install some bent stainless tubing for an indicator stop this tells me how deep i am plunging the tool into the stone, I made it fully adjustable for future use, the indicator is being secured by a clamp at the moment so I can figure out the best permanent location.
SHOP TOOL GRINDER MADE FROM A VALVE GRINDER SURFACER Here is a shot from behind.
SHOP TOOL GRINDER MADE FROM A VALVE GRINDER SURFACER By no means is this machine complete but not having any patients I could not resist trying out a cut, I decided to make a threading form tool....
SHOP TOOL GRINDER MADE FROM A VALVE GRINDER SURFACER side shot..
SHOP TOOL GRINDER MADE FROM A VALVE GRINDER SURFACER This is what i have got. I think this is a piece of 5/16 HSS, its 60 deg vee with a 7.5 deg lead edge relief and 2.5 trail edge relief for the helix angle, checked on the protractor it measured up a treat and when the fishtail was offered up it was a solid fit, I am over the moon with it.
SHOP TOOL GRINDER MADE FROM A VALVE GRINDER SURFACER The Grinding Jig fixture has a problem with the rotational axis as in there is a little slop with the clamping force, although this is not a major problem i am going to make a dial and a set screw to lock it better and give me a better reading on the angle.Also by playing with it i know my fixture location has many limitations to it, I will be drilling more holes to over come this.
I dont know the RPM on the thing as there is no information on the motor plate and i cant find any info on the web, I would say it spins around 5,000 rpm, i am looking at more types of grinding wheels like this type:
http://www.ebay.com/itm/110783455686?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AITNot having any real knowledge on grinding wheels types or materials any suggestions would be welcome...
Anthony.