Cromwell S800 Mk3 lathe

RodF

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Apr 16, 2014
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I am just finishing up a 3D printer design and build and recently finished a CNC hot wire foam cutter design and build.
Have been looking around for a new lathe for a while now and an unfinished project came up on our local buy and sell site. I've taken a risk and bought it so now I am committed to finishing it. Hopefully I will not have to make too many new parts.
Here is a photo of what it looked like before disassembly and its current state. If I can get it looking half as good as Valleyboy101's I will be really pleased.

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I'm sure that you can make it look as good or better than mine. Yours looks about the same as mine when I brought it home and yours is well on its way. What accessories did you get with it? Mine is missing the steady and follow rest and most of the change gears (apart from the set it came with) but all the main parts were there and I have the material to make the change gears.
I learned a few things with the work on mine so if I can be of help I would be pleased to do so. They are a rare machine in these parts.
Good Luck,
Michael
 
Got the lathe home. More damage than I hoped for but I can live with it. Some missing parts main one the cross slide power feed shaft. Also the roller door and the steadys and collets. The guy I bought it from has only had a bit of a look for them so am hopeful he still has them and can find them. Have offered financial reward if he can find them. Only the main drive motor is in place so will need to replace with 3 phase motor and inverter drive or a servo drive. Interestingly there is a spare headstock shaft! No chucks but a chuck mount and a face plate for drive dog but no centre? Lots of newly chromed parts though so it should look nice. Well I have a good challenge on my hands to make it into a usable machine.IMG_2189.JPGIMG_2187.JPGIMG_2190.JPGIMG_2194.JPG

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I have been trying to get the guy who sold me the Cromwell to find the missing parts. So far he has come up with what are probably the most important ones, the steadies and the roller door. I am going to see him this week and hopefully find some more parts. However I have enough to do a full rebuild. I think I have a belt supplier in the US http://rubberproducts.jasonindustri...-type-400-endless-woven-flat-belts/item-10009 however they are only .035" (0.9mm thick) but at 1 1/4" wide it should handle the fairly low power requirements.

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Took out the original DC drive motor. The original ac motor and generator were missing. These will be replaced which a 3 phase motor and variable frequency drive or a servo drive.
Am panel beating the door parts.

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Started with the bed. This is the the dirtiest part to prepare, lots of gun wash and grease remover sorted it out. I am spraying it with 2 part polyester undercoat then finishing with the original light blue spraying enamel.

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I've stripped back the stand ready for undercoat, it just needs a good wash down with degreaser.

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Got undercoat on the stand. I ordered a 1 1/4" wide 59" long continuous drive belt the other day, today the penny dropped. The drive system is designed to have the belt spliced in place. However all is not lost as I think I can make an arrangement of idler wheels to guide the belt through a single belt way. More to come.


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wow, looks like you're making cracking progress!

OT - I lived in Upper Hutt for a bit over a year several years ago. Worked at AgResearch until they shifted us to Palmerston North. I preferred Palmerston North as a town, but seriously missed the hills outside the Hutts!
 
Got the enamel onto the stand and bed. Not a bad match with the original, could have been slightly lighter blue but I am happy with it.

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