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  1. T

    Suggestions for fixing magnetic scales to cross-slide of old Pratt & Whitney Lathe?

    The story of this DRO and how I mounted it was that the Sargon and this one scale was salvaged from another lathe. Because it wasn’t the DRO that I ultimately plan to end up with on this machine, I decided to mount it in a way that it would not require me to drill any holes in the cross slide...
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    Suggestions for fixing magnetic scales to cross-slide of old Pratt & Whitney Lathe?

    I went through some pictures of the DRO scale installation on my Pratt & Whitney 12C. I just used some existing pictures and maybe you can get some idea of what I did. I mounted the scale to an aluminum bar which is mounted to the cross-slide cover. The reader is mounted on the backside of the...
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    Rivett Carriage Question

    That is the original scraping. The underside of the saddle looks pretty much like that, too. The ways were in good shape, but I did have to change most of the bearings in the machine. I’ve posted some pictures of the machine in this thread if you’re interested...
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    American Pacemaker tail stock questions

    An advantage of ACME threads is it is a little easier to find a roughing and finish tap to cut threads for the nut. It also eliminates the need for a threading tool ground specifically for square threads. Square threads seem to give way to ACME threads on tailstocks as time went on. I believe...
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    American Pacemaker tail stock questions

    The nut in the tailstock ram is held by a taper pin. My taper pin was a little shorter, so the ends were easy to identify and the pin wasn’t particularly difficult to knock out. When I went back with a new nut, I had to drill and re-ream for the taper pin. I also had to use a little larger pin...
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    Rivett Carriage Question

    I took a picture of the underside of my Rivett 1020S which I believe is a 1963 model. The oil lines are pretty easy to sort out. One comes from the apron and goes to the other side of the cross slide. Another goes to the rear ways. One change I made to mine had to do with the oil plugs. There...
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    10ee Spindle weep hole leaking / revisit....

    I have a 1968 10EE that I changed the spindle bearings in. I was curious if when you pulled the spindle did you release tension on both the front and rear bearings and then reseat them. This releases some of the tension or expansion on the rear bearings on the spindle and the front bearings on...
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    Shaper oiling solutions

    I added a pressure oil system to this Smith & Mills shaper. I also did a post on this shaper earlier, but I’ll repeat some pictures here. This machine had a coffee can, gravity oiler. It was open in the base. I enclosed the base by installing a sheet metal plate between the upper and lower...
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    20" Steptoe Shaper Rebuild. Help needed.

    Nice looking shaper. I have a 14” Smith & Mills that is real similar to what you have. I know Smith & Mills and Steptoe had some history together. I believe either Smith or Mills at one time worked for the John Steptoe Company but split as seems to be pretty common in those early days. My...
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    Pratt & Whitney 12C Restoration Pictures

    I think I bought my last purchase of Glyptal 1201 from the Hisco Co. which I believe is in Houston. The stuff is expensive so usually worth shopping around. I think I bought it from Hisco because they had what I needed in the timeframe I needed it. I usually buy one quart and one spray can. It...
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    FS: 4140 Drops

    I received my drops. Thanks for the fast shipping and excellent packaging.
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    Missing V Way Wipers Pratt and Whitney Model B 12x30

    I’ve included some pictures of the way wipers that came on my Pratt & Whitney 12C. These wipers have a double felt with a bronze outer wiper/scraper and are on all four corners of the saddle and tailstock. I liked these wipers well enough that I duplicated them for my American Pacemaker, and...
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    Need help with Monarch 12ck

    Usually, the taper pins come out with the rack and then you can knock them out of the rack. If you have one that is stuck in the bed but the rack is moving, I would continue pulling the rack out as squarely as possible. The pin may eventually grab, or the pin may pull through the rack. If it is...
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    Need help with Monarch 12ck

    Sometimes these things can be quite stubborn. I don’t have a CK, but I have removed these from other machines. Try taking a wood chisel, maybe 1/2 to 3/4 inch wide, and grind it so it has a long shallow taper with a sharp point. You may only be able to take out a small section of the rack out...
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    DoAll Vertical Band Saw Pusher

    I’ve posted a few pictures of things I’ve made for my 20” Powermatic bandsaw including a pusher. The pusher is 19” wide and has a 9” depth to the center V. It is 1” thick. The top piece is ¼” plate steel. The bottom is white plastic wood from Lowes. The plate and the plastic wood are contact...
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    Rivett 1020S Spindle Brake with Foot Pedal

    I thought I’d post a few more pictures of the finish of this project. I made a new electrical panel and added a limit switch which allows the brake to be used in three different modes: foot brake only, foot brake and kills the drive, and motor brake only or with any combination. Instead of...
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    Rivett 1020S Spindle Brake with Foot Pedal

    Sounds like good improvising skills. My background is power plants - boilers, gear boxes and bearings. I was fortunate to work around some really good welders, mechanics and riggers. They all had various tricks for fixing a leak or getting a piece of equipment to the next overhaul or downtime...
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    Rivett 1020S Spindle Brake with Foot Pedal

    On my machine I disassembled everything. I replaced most of the bearings in the machine and all of the seals and o-rings. I also made new gaskets where needed and sealed them with Hylomar. It took a bit of work and attention to detail, but it is possible to stop the leaks. However, don’t let...
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    Rivett 1020S Spindle Brake with Foot Pedal

    I thought I’d add a couple pictures of a modification to the clutch handle that I’ve been working on. I’ve added a center lock-out or gate to keep from accidentally shifting the clutch into gear. There is enough flex in the linkage that when the operator pulls the clutch handle out, it...
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    Rivett 1020S Spindle Brake with Foot Pedal

    That would eliminate the need for a mechanical interaction, but since I've already ordered a limit switch, I may give it a try. We'll see.

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