Member postings for Nobby

Sorry cant delete 2nd one above . I have fitted a system to use milling cutters
Nobby

Hi
Here is my mill drill set up using a back geared Kerry drill

Edited By Nobby on 21/07/2014 23:01:42

Hi Tony
Welcome to this forum . There is a wealth if info on here . what are your main interests? I see you are ok with milling that's a good start. Whatever you are making there comes a time when you need a tool so to help your skills why not make it ? I am interested in vintage machines .

Nobby

If I renew my subs. in Nov 2014 would I get a free gift ?
Nobby

Hi
Here is a little tip for the home shop machinist make some of these dummy centres so you can use plain cutters .Notice slot 
in an Autolock
Nobby

Edited By Nobby on 30/06/2014 17:24:24

Hi Martin
Welcome to this forum . I have a vintage S7 Mk 1 . A milling machine would be a great asset to your
workshop . You will get a lot of advice here.
Nobby

Edited By Nobby on 30/06/2014 13:17:14

Hi
I had the same problem . I made a lever with a small grub screw to lock against the gear
Nobby

Hi Guys
I always part from the back on my S 7 Mk 1 using HSS
Regards Nobby

Edited By Nobby on 24/06/2014 12:52:51

Edited By Nobby on 24/06/2014 12:53:50

Edited By Nobby on 24/06/2014 12:56:23

Hi
Start the similar to Micheal G but leave 25 thou on also counter sink the end where the hole was tapped I would use about 1" diameter so it give you a nice true shoulder to keep it nice a true
Remove from chuck make a saw cut so when you insert and tighten countersunk screw it will expand . Put back in chuck . turn down to the required diameter . put job holding square against the shoulder tighten screw the mandrel will expand . Even at 1/4" thickness this should work
Nobby

Hi Lofty
Sorry mate Those gauges measure the pitch ie TPI you can get whit , metric . ba etc
Nobby

Hi DW

When removing spindle there  is a small woodruff key . so make sure you don,t loose this as it may drop . Is it a mark 2 S7

Nobby

Edited By Nobby on 17/06/2014 15:24:43

HI Matthew
I can put it back on the machine now . I will have to brush up on my drawing.
Nobby

here we go Matthew Overall Length 6&5/16" hole ctrs. 3&15/16" hole to suit 1/4" whit Mtrl. Cast iron

Hi Matthew
Here is a photo the part you are missing you can just see it in this photo . I can post details measurement later. Regards Nobby

Edited By Nobby on 16/06/2014 13:18:04

Hi Norman
We all have one in our workshop a black hole . I dropped my small adjustable spanner and its gone . I cant find it anywhere. . In the toolroom years ago . if you dropped a small item .the first place to look was in your turn ups
Nobby

Hi Guy's
I have a small book marked workshop A to Z . If I cant remember say where is the large tap wrench , look under T
and there it is in  draw marked M 3 
Nobby

Edited By Nobby on 01/06/2014 13:03:14

Hi Neil
Riffler files mould makers and toolmakers use this when finishing shaped moulds after inserts have been milled on a CNC mill etc . Early days when cavity inserts have been die sunk. Now with spark eroding cavity's are polished mainly using stone's of various grades . There is a system for putting a leather effect on moulds . but its a secret/ guarded proses. There is a type of handle you can use for holding these I will see if i can upload a photo
Nobby

Hi
Climb milling on a conventional mill is fraught with danger as there is backlash in the screw and you could end up with damage or injury On CNC machines its fine
Nobby

Hi
As John says use HSS and make sure there is clearance at the back so it don't rub. a spring cut is always a good thing to try . sound silly but sometimes cutting dry works on finishing cuts on MS
Nobby

Hi Ed and guys
I would use a slot drill for rough slotting then finish using an end mill . if the spindle is zeroed to the centre of the rotary table and dials set. Move Y axis to radius required less 1/2 cutter (R minus ) less say about 10 thou . run round dont climb mill . as it may snatch when you are milling round the slot . check size for fit may be 20 thou small repeat to finish . Leave approx the same on the bottom . you can then remove the centre metal not required clamping direct on milling table . the CNC guys would have a canned cycle for this job What mill are you using ?
Nobby