Goodell Pratt 125 Bench Lathe

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Blog series by Rick M. updated 04-22-2015 04:58 AM 8 parts 15664 reads 34 comments total

Part 1: The Beginning and history.

01-05-2013 09:40 PM by Rick M. | 2 comments »

A lathe has been in the back of my mind for some years and in the last year my love of vintage tools and machinery has really taken off so when I saw this 80+ year old Goodell Pratt bench lathe I had to have it. Luckily I got it for only a few bucks more than it cost new but unfortunately most of the original accessories are missing as is the original banjo and tool rest but then if it had those things it would have been 4-5X the price. The 125 was GP’s midi size lathe and was meant ...

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Part 2: Ye olden lathe

01-05-2013 10:03 PM by Rick M. | 6 comments »

Cleaning up a 7×12 Goodell Pratt bench lathe. Some before/after pics. The previous owner (owners?) made a replacement tool rest from scrap 2×4’s and angle iron. It looks janky but is perfectly servicable. In the short term I’ll make something that looks nicer but in the long term I hope to find an original replacement. Oddly, they chose to paint over the original black with green but painted the tool rest a nearly matching red. The vibe I get is that the...

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Part 3: Motorin' - or How to wire a 3 speed AC motor.

01-06-2013 06:40 AM by Rick M. | 0 comments »

You’re motoringWhat’s your price for flightIn finding mister rightYou’ll be alright tonight My choices were between a single speed, 1/3 HP, 1750 RPM motor or a three speed, 1/4 HP, 1050 RPM motor. Wow, 3 speeds! The 1/3 has a very short shaft meaning I could only fit one pulley meaning I would have to slide the motor to each lathe pulley (or I could have used a jackshaft but I was too stupid to know it). The 1/4 has a longer shaft to fit a step pulley and did I mentio...

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Part 4: The Stand

01-07-2013 05:49 AM by Rick M. | 4 comments »

Credit where it’s due, I basically copied this guy’s stand except I modified the top to work with my lathe. I had literally a wheelbarrow load of scrap fir 2×4’s from another project so I used as many as I could. (Note: never build anything from fir 2×4’s, the wood is soft and brittle, every little bump is a dent and pieces kept flaking off at the slightest provocation.) Sorry, I have no in-progress pics. Once I get started I don’t like to stop ...

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Part 5: Pulley glue-up and guess the wood.

01-11-2013 08:21 PM by Rick M. | 1 comment »

Just a quick update to anyone following along so you don’t think I abandoned the project. Right now I’m basically boning up on my turning skills while waiting for a few parts to come in. The motor mount will not work as is, the angle is too acute and the belt rubs on the lathe. There are two solutions: 1: Create a raised platform for the motor that will bring it to the height of the lathe pulleys. 2: Build a jackshaft that will transfer power from the motor to the lathe. ...

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Part 6: Over complicating things [updated]

02-05-2013 10:29 PM by Rick M. | 2 comments »

[UPDATE: Scrap this idea, it doesn’t work. When I first tested the vibration was minimal but now it’s setting off an oscillation that makes it unworkable. Guess I will go back to over-complicating.] The motor mount I built was too low and allowed the pulley belt to rub the lathe frame. In the last entry I mentioned there were two solutions to the problem: 1: Create a raised platform for the motor that will bring it to the height of the lathe pulleys.2: Build a jackshaft that...

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Part 7: DC Motor upgrade

02-11-2013 08:51 AM by Rick M. | 6 comments »

Last update I had given up on the lathe stand and moved everything to the workbench but I still didn’t have a good system for variable speed. Well, no more cone pulleys, countershafts, or underpowered AC motors… I bought an old treadmill with a 1 HP DC motor and hooked it up. The block of ipe you see on the lathe was the breaking point. The 1/3 HP motor would just turn it and once I laid tool to wood, everything would slow to a crawl. That prompted me to go find a proper moto...

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Part 8: New Paint

04-22-2015 04:58 AM by Rick M. | 13 comments »

I don't like my blog words turned into advertisements so info at link

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