Edelstaal Machinex 5 Lathe Wiring Diagram

[mvagusta]

I have one of these Edelstaal Machinex 5 lathes and needed to know how it was wired. People have asked online if anyone had a wiring diagram for it but it seems no one did. There is very little information available for these machines, so I decided to figure it out and make an easily understood wiring diagram. Here it is:



There isn't much to it. The rectified DC is full-wave but not smoothed, so there are no filter capacitors involved, just the bridge. There really isn't any room in the switch housing for anything else anyway.

 

[WobblyHand]

I have one of these Edelstaal Machinex 5 lathes and needed to know how it was wired. People have asked online if anyone had a wiring diagram for it but it seems no one did. There is very little information available for these machines, so I decided to figure it out and make an easily understood wiring diagram. Here it is:

View attachment 498677

There isn't much to it. The rectified DC is full-wave but not smoothed, so there are no filter capacitors involved, just the bridge. There really isn't any room in the switch housing for anything else anyway.

The inductance of the motor along with it's moment of inertia filters the pulsing DC.

Nice job on the diagram!

 

[mvagusta]

Thanks! And now that you mention it, I remember that from the basic electrical courses I took back when I was getting my BSME. That was a long time ago. Coincidentally, it was about the same time that the motor was being made.

I needed the wiring diagram because a previous owner had replaced the original switch with one that must be significantly taller than the original and he could only get everything to fit inside the plastic switch cover when the switch was mounted backwards. Backwards means that when the the lathe belt cover was closed, the molded-in ON and OFF on the cover indicated that the motor was off when it was on and vice versa. Not safe. So I spent quite a bit of time figuring out how to get everything inside the switch cover with the switch oriented properly. The solution was to bend the DC tabs on the bridge and connect the wires from the front of the switch instead of from the back, using "connector reversers" that I made up from parts in my electrical junk box. I basically cut off the straight tab from one of these piggyback connectors:



Here's the model without the wires:


Here is a photo of the wired switch:



Not much room left in there, eh?

 

[WobblyHand]

Thanks! And now that you mention it, I remember that from the basic electrical courses I took back when I was getting my BSME. That was a long time ago. Coincidentally, it was about the same time that the motor was being made.

I needed the wiring diagram because a previous owner had replaced the original switch with one that must be significantly taller than the original and he could only get everything to fit inside the plastic switch cover when the switch was mounted backwards. Backwards means that when the the lathe belt cover was closed, the molded-in ON and OFF on the cover indicated that the motor was off when it was on and vice versa. Not safe. So I spent quite a bit of time figuring out how to get everything inside the switch cover with the switch oriented properly. The solution was to bend the DC tabs on the bridge and connect the wires from the front of the switch instead of from the back, using "connector reversers" that I made up from parts in my electrical junk box. I basically cut off the straight tab from one of these piggyback connectors:

View attachment 498696

Here's the model without the wires:

View attachment 498704
Here is a photo of the wired switch:

View attachment 498703

Not much room left in there, eh?

Pretty tight quarters I'd say!