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And there was me thinking the whole world would understand, Phil, not just you  :clap:
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"Shanks pony" yer can tek the lad outa Leeds etc etc!! Favourite phrase of my dad and grandad!!
Phil
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Gallery / Re: Mill Power Feed
« Last post by chipenter on Today at 10:27:25 AM »
The controller came without a nut and the thread is 6.8 x 0.8mm I take that as 7 x 0.8 , as 1/32" is two tenths different I cut the nut 32 tpi on my imperial lathe over five threads that's one thow error , and it fitted that's the main thing .
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Gallery / Re: Mill Power Feed
« Last post by Davo J on Today at 05:58:14 AM »
Nice job and you will get so much enjoyment using it knowing you made it.

Amongst many other projects over the years I just finished 2x electric power drawbars, so understand work involved from the design to working model.

From the paper rough sketch with ideas and then detailed rough drawings with measurements to having something working is a great self achievement.

I call my drawings padcam, just sketches on a pad, lol
I'd love to get to know how to use a cad (free) package and design something, but then that time would cut into shed working time.

Enjoy

Sent from my 5007U using Tapatalk

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This morning I managed to upload the PLC program file image from the Panasonic Toughbook via STEP5 to the PLC on the Siemens 820T controller. I did try directly editing the code in the PLC but it kept slapping my hand. I tested the coolant depressurisation, which was the modification that hadn't been backed up, and it works fine.

Back ups downloaded and put on two separate PC's in separate buildings along with a copy blown to CD and placed in the pocket inside the machine door - don't want to have to jump through these hoops again.

Still got the mystery of the error code numbers not being translated into text from the PCA file but that's not a show stopper. Conceivably it could be that little battery backed RAM card that I had to replace - maybe an oddity with the replacement. A further spare has arrived with my son in Houston yesterday and will be coming by shanks pony in due course.
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New from Old / Re: Boxford back from the dead
« Last post by trim on August 04, 2021, 03:39:34 PM »
I know I'm posting on an old thread, but this time it seems appropriate.

I have a model A, serial number 1507, so 1949.  Like your Model C, it also has a 4 v-belt pulley.   It still has its tumbler gear bolt, no cam on the tail stock and foot casting including the switch.  Everything looks original and as with yours, it would need to have had it's plates changed to show the 16speed layout.   This doesn't seem very likely.

So the fact yours and mine seem identical in terms of age and correct features - makes me question the accepted serial number of 1791 for the change over from flat to V. 

I hope you finished saving your Model C.
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New from Old / Re: The Sequel - Oh Blimey I bought a CNC Lathe (Beaver TC 20)
« Last post by awemawson on August 04, 2021, 11:20:17 AM »
So one of the 'post lightening strike' issues that I need to sort out is that back in 2018 I had made some alterations to the PLC code, and although the vast majority had been saved, my last alteration hadn't.

This is just to drive a solenoid valve to depressurise the coolant system when not being pumped, to allow the parts grabber (which is coolant powered) to open. I have hard copies of the minor change - it only involves two PLC segments - but not in a format that allows me to upload it as part of the normal reload procedure.

So today I took a trip down memory lane, re-learning how to connect my Win XP powered Toughbook running 'STEP5' to the  PLC. Amusingly, the correct version of the PLC code is still showing within the program, but I've not yet rediscovered how to upload the local copy to the PLC. If all else fails I can edit the code within the PLC to match my printout, but that's cheating!

Now I have to say that having uploaded masses of screen shots when I was doing it back three years ago, it has been a very handy resource to set me on the right path, as believe me STEP5 is not at all intuitive !

 :mmr:
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New from Old / Re: The Sequel - Oh Blimey I bought a CNC Lathe (Beaver TC 20)
« Last post by awemawson on August 03, 2021, 08:11:39 AM »
It's actually remarkably similar to the maximum rpm parameter that caused me all this bother by reverting to Max = 0  :lol:
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New from Old / Re: The Sequel - Oh Blimey I bought a CNC Lathe (Beaver TC 20)
« Last post by Sea.dog on August 03, 2021, 06:41:12 AM »
That sounds like a scenario that Douglas Adams or Joseph Heller could have come up with.
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New from Old / Re: The Sequel - Oh Blimey I bought a CNC Lathe (Beaver TC 20)
« Last post by russ57 on August 03, 2021, 06:27:30 AM »
Graham, I rarely resent buying spares for these things when they are available and the price is sensible. It makes diagnosis so much easier in the future. A case in point is the little battery backed RAM card that seems to have succumbed to the lightning storm - I had it because it had flitted by on eBay about a year ago. Without that spare I'd still be scratching my head 


Other examples: I have a complete set of electronics and servos for my H425 Spark Eroder in a crate in my container alongside another with virtually all the bits of a Fanuc Wirecut wire eroder.

I suppose it comes from a lifetime career supporting obscure equipment in critical applications.

Years ago we were taken over by an organisation more accustomed to supporting commodity PCs where there were usually many substitute spares available at short notice from dealers at low cost. Seeing some exceedingly rare CPU modules on the books at well over 50K a piece the new MD wanted them written off pronto to make the books look better. When I pointed out that they supported a fair proportion of the National Grid infrastructure including Nuclear Power Stations that we had very tight contractual commitments to, and that they could no longer be made his face was an absolute picture :clap:

. Seeing some exceedingly rare CPU modules on the books at well over 50K a piece the new MD wanted them written off pronto to make the books look better. When I pointed out that they supported a fair proportion of the National Grid infrastructure including Nuclear Power Stations that we had very tight contractual commitments to, and that they could no longer be made his face was an absolute picture :clap:

My brother has some stories about stores. 
Item value 50k. Min stock level 2, , max stock level 2. Item required for urgent maintenance, but 'can't have it, stock would be below minimum...



-russ

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