Parkson 1NA horizontal vertical mill.

[Martin W]

Finished up the repair on my mill today. I drilled reamed 4 dowels on the two faces. I then bored a 1-3/8” hole thru the side. I made a 1-3/8” pin which I drilled and tapped 5/8”-11 hole. I then inserted a piece of 5/8” all thread thru the end and tightend the whole thing down. I couldn’t put an pice of anll thread the entire length as the casting for the parking stand blocked the hole in the middle.
Installed it in reverse so the repair is at the back now. I need to move the digital readout now as the parking stand is reversed.
seems to work very well. Time will tell when I’m doing some horizontal milling.
Martin

 

[Martin W]

One of the reasons I bought this mill is because it is a universal mill. The table swings 45 degrees in both directions and also the head pivots 360 degrees.
Martin

 

[francist]

Wow, that’s a very elegant repair Martin. And no small feat getting things aligned either, I bet. Nicely done

 

[Martin W]

Wow, that’s a very elegant repair Martin. And no small feat getting things aligned either, I bet. Nicely done

Thank you. I am happy with the result.
The over ram probably weighs 200 pounds, if not more. I used 4 transfer punches and slid the two pieces together while it was still on the mill to mark the bigger half. In hindsight I should have done this before I milled the faces. I could have saved a lot of lifting! Lol
Once I had it on the boring mill, I used a small dead center mounted in a Morse #4 sleeve in the high-speed spindle. From there it was easy to line up each hole with the center, then drill, then ream. I am terrible at taking pictures when I'm working. I always seem to take them after I'm done.
The repair isn't even in the dovetails when the vertical head is installed, it is pushed all the way back. When I put the horizontal arbor in, it is right over the back clamps, so it worked out perfectly.
I assume the reason it was cut off, is because when it's all the way back the mill has to be farther off the wall. It must have been a space issue.
Martin

 

[Willum]

A very clever and neat solution. Coincidentally I've just been offered a 1NA but will have to collect it if I go for it. Being a little short of space (but not to the extent of hacking off the overarm ... ) I'm trying to find dimensions and weights for it. I looked at lathes.co.uk but either I'm missing something, or he doesn't quote them.
Do you have a rough idea of the weight and the overall sizes and table size, please?

Will