Restoring a Deckel S0 tool & cutter grinder

[GreatOldOne]

So, I managed to snag an honest to goodness Deckel on eBay for buttons. I’m going to be restoring it, and switching out the motor from the existing 3 phase to a brand new single phase. New paint, de rusted, handles re finished, new or reblacked hardware... the works.

She needs it...

I’ve got it blown apart right now, so I have a bare casting ready for paint stripper, and all the steel parts are marinating in evaporust. I’ve also stripped the spindle assembly and got the old bearings and grease out, and ordered replacement SKF equivalents. The shaft the hold the work head and the shaft the holds the motor plate fought me all the way... they where held in by taper pins that appeared to be immovable. And it would seem inserted whilst the casting was being made (that or pixies climbed inside and used tiny hammers). I ended up drilling them out. I’ll replace them with appropriately sized bolts when it goes back together, so it saves future generations the hassle.

More pics as I progress.

 

[Eddyde]

Nice score! Looks like only light surface rust, should clean up beautifully. Please keep us posted of your progress.

 

[brino]

"Watching", thanks for sharing!

 

[MAKEITOUTOFWOOD]

Great score. Look forward to seeing progress on this project.

 

[thomas s]

Nice find will be watching this rebuild.

 

[Holescreek]

Looks to be about the same age as mine. Nice score!

 

[Bob Korves]

I recommend that you think about using a three phase motor, perhaps the original one, and use it with a VFD. You will have infinite speed control and the motor will run smoother, giving a better surface finish. There are other benefits as well.

Edit: Looking at the configuration of the original motor makes me think in that direction even more.

 

[Holescreek]

The SO is such a specialized grinder, I'm curious what plans you have for it?

 

[GreatOldOne]

The SO is such a specialized grinder, I'm curious what plans you have for it?

Playing about with D bits, sharpening end mills ala Stefan G, possibly regrinding drill bits, as it’s possible (so I’ve read).

I recommend that you think about using a three phase motor, perhaps the original one, and use it with a VFD. You will have infinite speed control and the motor will run smoother, giving a better surface finish.

I’ll keep that in mind if the single phase I’ve got in doesn’t work out. Speaking of which, it was derived this morning:

A little bit of bench testing. Runs smooth and quiet. I also found a NVR switch in my electrics stash when I was looking for some cable to hook it up with, so I’ll use that when I put it together for real. The pully will need boring out a little to accommodate the new motors shaft size.

I mentioned earlier it was all blown apart. I wasn’t kidding.

The stuff in boxes has been through the evaporust, and it’s done it’s usual job. Just needs a clean to get rid of the residue it leaves. The long rod is the bar the work head attaches to (the one that gave me the bother) that hasn’t been treated yet.

Under all that dirt though:

It’s imperial. Damn. I’m a metric man...

The postman also dropped off the plating and blacking chemicals his morning as well

And I expect the new bearings for the spindle to arrive tommorow, so I should be able to rebuild that over the weekend - as well as make a start on stripping the paint. It looks like it isn’t the first time it’s been done, as there’s grey and green paint on it, as well as the usual filler.

 

[GreatOldOne]

A busy morning.

Everything that was in the evaporust is now out, including the main mounting bar. All of it has been cleaned and anything that could be was mounted on the lathe, spun up and polished with scotchbrite.

The postman delivered the new bearings for the spindle, so I decided to rebuild that next.

The spindle consists of a sleeve, shaft with integral pulley, two bearings, rear and front dust covers, two Belleville washers and two pin wrench nuts.

The larger ID bearing goes to the front, the smaller to the rear. I packed them with grease before installing. The front dust shield is press fit onto the sleeve.

The rear bearing with shaft pressed through, and the rear dust shield ready to go on. This spins with shaft, and the washers and nuts lock it all together.

My next job will be to strip the castings. They’re all ready to go

And then one I’ve done that, it’s time to mask up and paint. I’m going to use this - never tried Rust-Oleum before... but as I wanted green, and there was no smooth green hammerite at the local DIY ship, I thought I’d try it, as all you guys seem to swear by it.