The Craftmans Shop > New from Old
The Sequel - Oh Blimey I bought a CNC Lathe (Beaver TC 20)
awemawson:
Today's task: Get the Input / Output crate out and find how extensive the damage is.
Access a bit tricky - have to go through where the Manual Control Panel mounts - so that has to be removed first. I twisted the cable ident labels so hopefully I can see them in my pictures and get them back in the correct places :ddb:
I took many more pictures of the wiring but they are BORING !
awemawson:
Now with the panel out of the way I can reach in and unscrew the four mounting screws for an L shaped mounting bracket obviously made by Beaver rather than Siemens - it's the white bit.
Usual thing - three screws no problem, but the fourth was rusted solid. A candidate for drilling as the bit it goes into won't take heavy hammering. Placing a rare earth magnet next to it to catch the swarf I drilled it out, constantly checking drill depth as if this blind hole were extended too far it would go into the tailstock end inners of the machine that will be awash with coolant (hopefully some time!)
awemawson:
Then it was a case of disconnection of the cable forms but labelling them up first. All came off nicely except one that had a screen earth on a screw tag that was inaccessible without removing the top cover - time to drill a hole I think :lol:
awemawson:
So now I can put the I/O unit on the desk and dismantle it to see how extensive the damage is and identify the card part numbers.
Now actually the physical damage is not too bad to the inner IO card - I'm sure it could be recovered, but finding one on the ubiquitous eBay for only £35 including postage it seems silly not to replace rather than try a repair
awemawson:
But the corrosion damage to the metal work was actually worse than I thought. No issue, it can all be grit blasted and painted and will be fine . .
. . .EXCEPT . . the fellow on ebay flogging the I/O card had another offering of the sheradised metal panel AND the umbilical cord with connectors both ends, that was so badly corroded at the controller end - so an excellent result (if all the cards work!)
I grit blasted the Beaver made white panel and have re-sprayed it to await the other bits to fix to it.
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