The Shop > Tools
Harrison L5 rescue
micktoon:
Its not too bad John, that was phase 1 now it just needs a good go over and paint to get it back to its former glory :D.
Thanks for them links Rob , I will check them out and hopefully get into the swing of posting better as I go. I have not used the lathe too much really , well mainly making bits for the lathe , backplates etc and other parts for various stuff, its been fine for everything I have done but I have not done anything too tricky mind. I like the lathe and have only heard good things about Harrisons in general, this one has the screwed spindle but the larger bore 2. 1/4 inch 6 tpi, quite hard to find backplates , faceplates etc for I still need some stuff. If I had of posted before I took it apart you could have had a go to see what you thought its now in bits as you will see from tonights photos :bugeye:, my plan is to strip and clean , repair what I can then maybe put back together to try to access how 'true' things are ( something I might need advice with ) then strip back and do what needs done and give it a nice repaint, hopefully ending up with it operating and looking as it was back in its day.
Cheers Mick.
doubleboost:
Hi
Mick
Are you running your lathe from a phase converter
That is assuming it is 3 phase
John
micktoon:
Hi John, the lathe is single phase 1hp motor at the moment but its a noisey motor and I think the date on it is 1941!, its a huge old thing massive for 1 hp. I have an inverter and 1.5hp three phase new ish but decent motor I was thinking of fitting , no doubt that will involve making brackets , a pully , a mount for inverter bla bla bla as these things always do :Doh:. The top speed is 750 rpm at the moment but L5's did have the option of two speed motor and 1500 rpm top speed so all the bearings etc are good for higher than 750 rpm and I know the inverters can get more than 50hz in therory so maybe get higher top speed with it too ? and reversing for threading, I know its a screwed on chuck so a bit iffy but having said that how much force is needed for taking off the chuck I think you would have to be doing something daft to get it to come free.
How do you find the inverter on your Boxford ?
Cheers Mick
AdeV:
Nice rescue of a nice lathe Mick. I've always had a soft spot for the L5, I nearly scored one a while back, before ending up with the Edgwick.
--- Quote from: micktoon on July 09, 2012, 03:17:36 AM ---and reversing for threading, I know its a screwed on chuck so a bit iffy but having said that how much force is needed for taking off the chuck I think you would have to be doing something daft to get it to come free.
--- End quote ---
The big danger, as I understand it, is if you do an emergency stop from a high reverse speed: The lathe stops, but the chuck doesn't... That shouldn't be a problem when threading, as you won't be doing high speed.
micktoon:
Cheers Ade, as you say its stopping from high speed that is probably the risky part but I can avoid that ok so think it would have its advantages over all. In hindsight maybe a phase converter would have been a good idea instead of inverters on various machines ? then again it would not have suited everything and speed control is good on most things too. I enjoyed your 'mega sump' Ade plenty getting around problems on that project !
Cheers Mick
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version