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VN Finally Got A Slotter Attachment

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Finally picked up a slotter attachment that I have been looking for. Probably paid a bit much, but it's practically new. Stripped it and cleaned out the old gunk. Back together already, quickest rebuild yet. Missing one oil cap and the arbor, but I have a print for the arbor. All I did was clean it.

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Jason
 

Comments

#31
View attachment 242573
Here is a couple of sets of Pratt & Whitney slotter cutters that I use on my 6" P&W slotter and my #2 Brown & Sharpe slotting attachment; they all have 1/2" diameter shanks. When making them, they need very little side clearance since they do not feed over like a lathe tool, also note that most of them have the taper carried back a short distance and are straight the rest of the way back to keep the shank as ridgid as possible. I made the one that is third from the left in the front row (the square one) out of a HSS round tool bit before I was able to find the sets shown.
These slotters were know by there action as a "Jumping Jack"
 
#32
You can get drill blanks that are pre-hardened to Rockwell C-65. Grind them to whatever you need, just like you would an HSS lathe too blank.
 
#33
I ended up grinding a piece of HSS. 2+ hours later, I had what I needed. It worked well.

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I took between 10 and 20 grand per stroke, and it didn't have any issues.

Jason
 
#34
Due to a clutch sticking problem with my 6" Pratt & Whitney slotter, I set my Brown & Sharpe slotting head up today to cut a metric keyway in a blind hole with a drilled hole for run out of the cutter (today) I used a 3/16 cutter that I reground to 4 mm, and in answer to one of the questions above, I fed it into the cut by hand, a few thousandths at a time each time that the tip of the cutter was out of the cut at the top of the stroke.
When I got the attachment, I took it all apart and cleaned everything up, but never got around to painting it.
 

Attachments

#35
Finally picked up a slotter attachment that I have been looking for. Probably paid a bit much, but it's practically new. Stripped it and cleaned out the old gunk. Back together already, quickest rebuild yet. Missing one oil cap and the arbor, but I have a print for the arbor. All I did was clean it.

View attachment 127990

View attachment 127991
View attachment 127992

Jason
Hello: I have a slotting attachment for my Kearney and Trecker 2hl horizontal.. Like a little shaper, it will do things that you cannot normally do with a milling machine....Great for internal key ways, splines, square holes, etc.. You are gonna love it! Mike in Louisiana
 
#36
Its used for cutting internal keyways and slots in things. There's no tool in it now.

You can't edit thread titles, and I have only had 4 hours of sleep since yesterday.

Jason
Would like to see a video of it in operation, would be interesting to see.
 
#37
Here is a video of Keith Fenner using a similar attachment for his KT. Parts 3 through 5, shows him setting it up.

 
#38
I do enjoy most of Fenner's videos. Wonder what Dividing Head he has there?
 
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