The Craftmans Shop > New from Old
Rebirth of a Denford MIRAC CNC Lathe
awemawson:
Here is the promised video:
Making the most expensive brass M6 hex bolt ever :lol:
It was as you probably realise, a learning exercise particularly with the G76 Fanuc G code, which is a bit complicated. Note that I use the parting tool at the end to chamfer the head of the bolt before final parting off.
You'll notice that there are significant pauses before the actual G76 lines are processed - I'm assuming that the controller is doing a fair amount of calculation - remember that the controller is running under DOS although it's got a pretty fast CPU to use compared to what it would have originally been equipped with.
seadog:
I see the need for a pneumatic chuck with bar feed :D
tom osselton:
It seems to do a nice job of it! :clap:
awemawson:
Thanks Tom :thumbup:
Seadog, a pneumatic chuck was an available option when these were made - sadly I don't have one
awemawson:
Late in the afternoon a courier delivered a 500 mm square by 6 mm poly carbonate sheet to make the new window.
I hate cutting things like this as you only have one chance - anyway after supper and a can of Old Speckled Hen I took my courage in both hands, cleaned off the band saw table and had at it.
Didn't go too badly actually. I then finessed it on the disk sander as I'd been a bit cautious cutting the radii, so I took it 'back to the line.
Tomorrow I must face the task of cutting a similar shape in the door, but slightly over size to allow for the rubber window seal. I suspect a loosish fit is what to aim for, as fitting those rubber seals can be entertaining :clap:
. . but that's tomorrow and I have a batch of pigs going off so that may delay things . . . . :med:
(ps window looks opaque as protective film is still on it)
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