Old Mill

[dhazard]

I told my new boss about breaking my drill when I was mounting the coupler to my frame, he took me to a back room at the TV station and asked if I could get rid of this.

The nametag is missing, anyone have any ideas as to the make and what type of collets it uses I think it might be an R-8. I will try and get a pic of the chuck and measure the size it looks like it is about 1” diameter. The motor looks like it is a replacement, it is a 1 ½ hp 220v with a speed controller. Pretty good find.

[Kevin A]

Looks like an old piece of junk to me, I think you need to ship it over here to Eureka
We have one very similar to that at work that we use in the balance room to remove material from pistons during the balancing process. I'll see what I can find out about it.

[dhazard]

I just about killed two of my friends moving it into my garage. I think I will keep it, or the friends that helped might just kill me…

[Kevin A]

A google search for Mill/Drill turned up this one, It sure looks a lot like your's. It appears that it uses R8 collets too. Mill/Drill

[Gage]

The table looks different Kevin, and other things about it. That mill looks like one of about 6 that Northrop sold off (real cheap) around '91. Once you figure out the slop, it's a fun little mill that will get the average home job done. Good find.

Have a good day.

[Kevin A]

The table looks different Kevin, and other things about it. That mill looks like one of about 6 that Northrop sold off (real cheap) around '91. Once you figure out the slop, it's a fun little mill that will get the average home job done. Good find.

Have a good day.

Gage,

I agree there are obvious differences between the two mills, but I would imagine most of these imported mills use the R8 collets.

[Gage]

That mill looks like a late 40's or early 50's.

Have a good day.

[doug hodder]

Sorry Dan...I mis read a word in your post...when he asked if you could get rid of this, I thought he meant the Harley in the background!!..... as per my PM...I'm still betting it's a Central....doug

[dhazard]

I don’t think the mill is an import. It was at the station when my boss started 30 years ago.
This is the only label / markings on it

Collet size

Other side

Thanks for the help Dan

[Kevin A]

That mill looks like a late 40's or early 50's.

Have a good day.

Ya know, Gage,

You're probably right. I wasn't around back then so I guess I'll have to rely on the memory of you old farts.
Seriously though, I'm so used to seeing the imported clones of that machine, I guess I didn't recognize the real McCoy....

[Gage]

That chart if I remember correctly is your speed settings for the head depending on where you put the belt. And I'll almost bet you that mill was a much lighter green . I can't believe there isn't a name embossed in the main body on the side. Boy, have you got me thinking about this thing. I printed up a picture and going to take it down the street to a guy whos been a machinest for over 50 years, he should know. I keep thinking one brand but I'm not going to let it loose yet.

Have a good day.

I've only worked in a machine shop for a short period of time but because of my job (when I worked for a living), I've spent a lot of time in the shop.

[dhazard]

Thanks Gage, yes the chart is the speed settings for the belts.
I don’t think that it was ever repainted.
In a past life in a far away land I ran a Blanchard grinder, it had a 3’ grinding wheel with a 5’ table… That would definitely classify as a dirty job. I ground the aluminum top plates for professional video recorders. It used a magnetic table to hold the aluminum parts… fun stuff sure don’t miss it.
Can you show him the pic of the chuck and ask if that is for an R-8 collet setup. I would like to get some end mills for it but it didn’t have any holders for them. I have tried to find a drawing online but no luck.
Thank Dan

[Chris C]

Dan,

I've run a surface grinder for more hours than I'd like to admit. It also had a magnetic table. Could you please explain to me how you held aluminum down using a magnetic table?

[dhazard]

I was wondering how long it would take for someone to pick up on that. What we did was put steel bocks under the locating bosses under the part, then put Steel blocks around the edges to hold it in place without distorting the aluminum casting.

[Chris C]

Thank ya kindly, sir!