The Craftmans Shop > New from Old

Rebirth of a Denford MIRAC CNC Lathe

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nrml:
Can't argue with that :thumbup:.

awemawson:
Apart from touching up, I think I've finished the black paint  :thumbup:

Quite a bit of rubbing down, masking and spraying going on yesterday and today - not perfect but perfectly acceptable.

. . . just the cream to do now  :clap:

awemawson:
I've decided to experiment with the 'too white' machinery paint that I had mixed to RAL 9010

Having delved inside to a bit of the cream paint that hasn't been exposed to the sun, in fact it is far whiter than the rest of the machine. So I have diluted a bit by 10% and sprayed the headstock end removable  panel to see how it comes out.

All the black panels have been rattle cans (aerosols), the base frame was brush painted, but for the cream I'm using a small 'touch up' gun in the hope that it's a bit more controllable than my normal sized paint sprayer.

However this panel needs to harden off and convince me it's going to be OK before I commit to doing the rest.

awemawson:
To facilitate the clean up of the remainder of the cream paintwork, which has rust spots in places and is generally a bit knocked about, I decided to revive a bit of kit I've had for decades, and frankly I'd forgotten I still had  :palm:

It's a 'Drester  1650-844' Spot Blaster. I think it was intended for the motor trade for detail blasting stone chips and little dents and is of a cunning design. The sphere is half full of abrasive medium, and just above the half way level is an extract port connected to a workshop vacuum cleaner. Fitted to the top is a co-axial hose leading to a hand held pistol. Down the  inner hose travels abrasive medium carried by compressed air and picked up by a 'straw' being sucked by a venturi. The media impacts the work, does it's stuff, and is sucked back up the outer hose and back into the sphere, any dust going into the vacuum cleaner.

This results in a blasting operation WITHOUT abrasive going everywhere (so long as the rubber nozzle is held firmly in contact with the work)

I picked this up from an advert in the local paper at least 20 years ago, and at the time I wasn't very impressed with it. I now realise that was because my compressor at the time was inadequate, and I was using actual sand.

Digging it out today I replaced the rotten rubber air hose, chucked out the sand and replaced it with fine crushed glass, and find that actually it's quite good for it's intended purpose of small detail work, and it will be very useful preparing the rest of the MIRAC for painting  :thumbup:

tom osselton:
I have one that is about the size of a paintgun that was bought years ago from Princess Auto but it is only good for a 3/4 - 1" spot if I remember right.
Your doing a great job on the machines as usual!
I pulled some cards out of mine and put them back in hoping the problem was a bad connection but not so lucky I"ll go back out today and scratch my head some more looking at the scematics. :doh:

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