/diy/ - Do It Yourself

>>1552039
Approximate dimensions taken with a plastic ruler.

I can get exact measurements tomorrow if this isn't accurate enough to find what it is.

>>1552039
Image of the milling machine that it came from. I am unsure of the age of it. All I know is that it was either built in Italy, or was built for Italy, as it has Italian writing next to the switches.

After some research I think it may be an NMTB 40.

The measurements I originally posted are a few mm wrong. Will update tomorrow once I have access to proper measuring equipment.

>>1552039
Have you been safety trained?

>>1552062
No

>>1552138
Signs signs, everywhere are signs
Blocking out the scenery and breaking my mind.

>>1552046
Didn't you want to repaint that in a previous thread and shot down every answer as "too much work"?

>>1552160
Oh god I hope not
If so OP is fucked, manual machining is all about copious amounts of tedious and concise work.

>>1552040
You need to measure the width of the short end of the taper, or the size of the draw stud so you can calculate the angle of the taper

>>1552040

Measured an ISO40 holder. Your 24 mm dimension is 20 mm on a ISO40/SK40.

Is a No. 40 INT

More info: http://www.lathes.co.uk/arno/
This was literally 2 min searching. If you really are this stupid/lazy don't take it apart. Ever.

>>1552039
It's a 3.50.

>>1552165
>>1552160
Haha that was me.

I wanted to repaint it in hammerite or something, but the suggestions were to dismantle it all, get it sand blasted and powder coated.

That is SK (ISO) 40 or under rare circumstances if you are fucked it's SK35. Most probably your measurements are off and it's SK40 or NT40 (depends if the draw bar. May be metric or standard).

>>1552168
>>1552174
>>1552206
>>1552209
>>1553430
I've measured the tool holder with digital calipers and have gotten pic related.

I ordered a chuck last night, but looking at it more closely today, I don't know if it can even take a draw bar.
>https://www.rdgtools.co.uk/acatalog/40-INTERNATIONAL-ARBOUR-WITH-A-1-16MM-KEYLESS-DRILL-CHUCK-85190.html

Did I fuck up?

>>1553614
well, you fucked up buying from RDG who are reselling chinese tooling at massive markups.
also i seriously hope you aren't planning to stick an endmill in that drill chuck.

>>1553627
It's the cheapest tool holder I could find. £50 for the arbor and drill chuck doesn't seem too bad imo.

Where would you recommend I shop?

It's not for milling. I'm using it for a 2" hole saw so it doesn't have to be made perfectly concentric

Bump

>>1553706
A beast of a milling machine to make use of a 2" hole saw...... That does not have to be that accurate..... Mmmmmmhmmm.

>>1552057
>After some research I think it may be an NMTB 40.
I think so too.

>>1552039

>>1555100

Thank you for your help everyone. I ordered an INT 40 taper, and had to buy an M16 rod to make a metric drawbar.

>>1554821
It's my dad's and has been sat unused in a shed for 20 years. I've been using a lathe to cut with the holesaw, and it's been a struggle as I need to align using packing peices in the vice, as it's cutting in a unfriendly axis.

>>1554909
>>1552057

Nice machine. Yup NMTB 40 is common for smallish manual mills of that era. Much better than R8. I have the same size on my Bridgeport CNC Series 1. I have found the cheepest place to buy endmill holders is on ebay. Also you need to get a Machinist Handbook.

>>1556908
I try to get all my stuff in iso40 with changeable pullstuds so when i upgrade my mill (you can find quite large machines with higher speed spindle in 40 taper) i can always keep all the tooling. For me it's the perfect homeshop taper. Not too small, not too big and available for cheap nearly everywhere.