Hi Folks,
I picked up a new project a few days ago and will be "overhauling" a new to me Cincinnati No 2 Tool cutter grinder. The Serial number of this beast is 12457. I think this puts the machine late 1930's? Some of them now have letters in their serial number that indicate later years. The purchase of the Cincy was through Kijiji from a tool sharpening shop that was closing. I picked up the Cincy for a very reasonable price and it came with a lot of tooling - pretty much all the big stuff like an indexing head and a power rotating head as well as a number of wheels, fixtures, No 50 taper adapters, centers etc.
I had other pictures of when I first picked it up etc, however, my iphone crapped out and is now on its way to service or the garbage. The second photo shows the slow feed handle missing, it is in my parts washer getting cleaned up.
I am missing a few small parts (springs and detent balls) and a a few small locking knobs, but all of those can be made. Couple items on the search for is a new belt (1-1/2 x 85 flat belt) and a gear for the slow feed. Evidently this was not in the machine from the previous owner. It is part Number 75248 and is a double ended helical gear. I found its mate (part number 75247) on eBay the other day so I am one gear short of a complete machine.
Taking the machine apart is pretty straight forward with only a few bots and allen screws keeping the table assembly in place.
Lots of balls! all in great shape as were the cages. Some loose parts found inside - like the rack retainers (those 4 blocks with the two allen bolts each - those were really loose.
Lots of old grinding dust to clean up. There is wear on the bushings and spindles for the rapid feed handles so I will be re-machining new bushings at a slightly less ID to accommodate the wear (about 0.010" on the diameter) - pretty good for a machine this age that was used a lot.
The one "damaged" item (other than the missing gear) that needed attention was the work head support. It is cast iron and had suffered a catastrophic failure at some point in its life. It had been poorly brazed together and a few taps with the hammer saw it separate into two pieces. I ground off the small amount of brazing and welded it back together with mig for Cast iron.
I will be finish up machining the inner bores and surfaces on the milling machine. I have had some great success with this mig wire repairing a bandsaw guide and a few other cast pieces. It could be that the mig does not tend to create a massive amount of heat in the entire piece like brazing. I also peen the welds to stress relieve and try to weld all over the place to avoid heat build up - hopefully it is not cracked in half when I go out the the shop in a few minutes - LOL
If anyone is interested in certain parts of the machine or questions let me know. I have quite a few things to make to get the machine 100%. Any source for a belt (found one on ebay but perhaps there are more) and any leads on a gear would be great! Thanks for reading!
I picked up a new project a few days ago and will be "overhauling" a new to me Cincinnati No 2 Tool cutter grinder. The Serial number of this beast is 12457. I think this puts the machine late 1930's? Some of them now have letters in their serial number that indicate later years. The purchase of the Cincy was through Kijiji from a tool sharpening shop that was closing. I picked up the Cincy for a very reasonable price and it came with a lot of tooling - pretty much all the big stuff like an indexing head and a power rotating head as well as a number of wheels, fixtures, No 50 taper adapters, centers etc.
I had other pictures of when I first picked it up etc, however, my iphone crapped out and is now on its way to service or the garbage. The second photo shows the slow feed handle missing, it is in my parts washer getting cleaned up.
I am missing a few small parts (springs and detent balls) and a a few small locking knobs, but all of those can be made. Couple items on the search for is a new belt (1-1/2 x 85 flat belt) and a gear for the slow feed. Evidently this was not in the machine from the previous owner. It is part Number 75248 and is a double ended helical gear. I found its mate (part number 75247) on eBay the other day so I am one gear short of a complete machine.
Taking the machine apart is pretty straight forward with only a few bots and allen screws keeping the table assembly in place.
Lots of balls! all in great shape as were the cages. Some loose parts found inside - like the rack retainers (those 4 blocks with the two allen bolts each - those were really loose.
Lots of old grinding dust to clean up. There is wear on the bushings and spindles for the rapid feed handles so I will be re-machining new bushings at a slightly less ID to accommodate the wear (about 0.010" on the diameter) - pretty good for a machine this age that was used a lot.
The one "damaged" item (other than the missing gear) that needed attention was the work head support. It is cast iron and had suffered a catastrophic failure at some point in its life. It had been poorly brazed together and a few taps with the hammer saw it separate into two pieces. I ground off the small amount of brazing and welded it back together with mig for Cast iron.
I will be finish up machining the inner bores and surfaces on the milling machine. I have had some great success with this mig wire repairing a bandsaw guide and a few other cast pieces. It could be that the mig does not tend to create a massive amount of heat in the entire piece like brazing. I also peen the welds to stress relieve and try to weld all over the place to avoid heat build up - hopefully it is not cracked in half when I go out the the shop in a few minutes - LOL
If anyone is interested in certain parts of the machine or questions let me know. I have quite a few things to make to get the machine 100%. Any source for a belt (found one on ebay but perhaps there are more) and any leads on a gear would be great! Thanks for reading!