| Gallery, Projects and General > Project Logs |
| Experiment Engraving Machine Dials |
| << < (10/10) |
| awemawson:
John I agree that that version looks slightly unequal. Not sure why :scratch: May be that the drag engraver, which is used non-rotating, turned a bit - it won't be exactly concentric due to the screw holding the bit, and 97 was the first line engraved, and 96 the last. I gave up with drag engraving as the depth and definition wasn't sufficient, so I dug out my 'Tapmatic Speeder' that gives a 6:1 speed increase on normal spindle speed, and engraved the dials using a conventional carbide 'Vee bit'. I've been putting off using it, as it requires a 'reaction bar' to stop it's body rotating, which was a bit of a pain to arrange. So here they are temporarily mounted on the drill grinder - I'll clean them up and nickel plate them when I've enough bits waiting for plating for it to be worth setting the tank up. |
| vtsteam:
Very enjoyable and useful reading, Andrew! :thumbup: |
| John Stevenson:
I have been doing some rotary engraving using a diamond drag over the weekend. Quite tiny letters in brass for something the Delectable Debs ™ ® © sells, This is new though as up until now she just stamped the model on with 1/8" stamps which was all she had, but now she has her own CNC, once perfected I can pass the job over. Sooner than hi-jack Andrews post ' again ' I'll start a new one tonight after work. |
| awemawson:
Hey what's a friend for if he can't hijack your thread :lol: |
| John Stevenson:
OK quick teaser. Quite hard to photograph being shiny brass and so small. The brass bar where the letters are is 8mm in diameter and the capital letters are 2.3 mm high. More later tonight with the tool. |
| Navigation |
| Message Index |
| Previous page |