Some time ago I bought some second-hand snubs, one I used in my DTI stand, the other I thought in making a machinists lamp.
The secondhand snub, not sure if it was an apprentice piece. I actually bought two snubs very cheaply at a car boot.
The other snub was used to upgrade my magnetic DTI base.
The machinists lamp base being held in the Warco WM240B.
I faced the 3 inch round steel and then slightly inset the centre portion, giving me an outer 3mm rim that the lamp would rest on.
Very quickly I had a DTI base.
I still had to make another snub for the attachment of the lamp holder, a GU10 based lamp.
Firstly though I need to cut the piece of mild steel to size, mark it, centre punch and drill.
The rounding of the holder went back again to my simple trick of using an axle and taking lots of skimming cuts at a fixed height.
Holding up a GU10 bulb to see what the scale of the holder needs to be.
So often I go with a rough sketch and a few numbers, making the rest up as I go along.
A mild steel round tube for the lampholder. This bridges the gap between the back of the lampholder and the front shroud.
The base has two 3mm blind threaded holes, these are to allow me to fix the ceramic GU10 lamp socket.
The post at 90° is threaded 5mm x 0.5mm both ends. One end getting firmly wound into the lamp holder base.
Sometimes you just need a big 100 Watt soldering iron.
My original thought was to make a square end plate for the lamholder. This would then allow me to fit wooden barn doors. However, I got it really wrong when I broke a centredrill and then a 3mm tap.
Time for a rethink on the lampholder design.
The final output of the Making a Machinists Lamp story. Shown here illuminating my lamp post engine.