Rivett 918s Second Tool Post

Created adjustable sub-plate for tool posts I picked up recently at the Cabin Fever Expo.  May need some additional modifications but has adequate travel to situate the form tools that I want to play with.  Simple plate with slots to allow adjustment over the work piece.  Don’t need much travel as the form tools will stay as close to the spindle as possible.

Tricky part of the second operation lathe is getting front and back tool post in sync.  Also, depending on some of the tools I use in the turret it require sthe cross slide to be pushed up pretty close to the spindle.  Hence they typically come with factory installed risers and corresponding tool post.

 

Rivett 918s – Added Knurling Capability

Brown and Sharpe 210-120 Knurling Swing Tool.  Nice addition for the Rivett 918s.  Takes 5/8″OD – 1/4ID – 1/4″ Width Knurling Wheels.  Came with the “fine” diamond (male or female tbd).  More wheels to come and and a bit more studying.  Great document for anyone playing with knurling  Reed Machinery – Knurls and Knurling has been a great help.

The swing tool is interesting.  The swing allows the placement of the knurl on the part to be flexible.  Single wheel limits patterns formed by multiple wheels but diamond patterns available so not a worry.  Initial test shown above – not too shabby.  Need to work on the push bar that contacts the swing arm, just pushed it with the cross feed plate for now.

Riser Plate for Rivett 918s

Working out a t-slot riser plate for the Rivett.  With the tooling I am using in the turret it is hard if not impossible to get the cut-off tool close enough to spindle and keep the turret from running into the cross-slide.  The t-slot riser plate will allow enough freedom of movement to accommodate the shorter turret tools.

I have a few Brown and Sharpe Tool Posts for Square Tools – They may be a little big but I am going to figure out a riser plate to mount these with for shits and giggles.

Liberty Tool Visit

First visit this trip to Maine….got a switch panel I needed for 3ph rotary converter setup.  A nice yet unmarked 3″ sine bar a few little vee blocks and some nice ground lathe bits.  Coil was 75 cents so I took a chance it might work on my Rivett brake…no dice.  A little research shows it is more than likely for an early mag starter.  All this stuff plus the Rockwell Carbide Tool Grinder project from previous post… $29!

Rockwell Walker Turner Carbide Tool Grinder in the Rough

Found this at Liberty Tool today.  Motor spun in reverse on 120v so good enough for me to take home and mess with.  I think it is wired for 240 so will play with it more when I get her home.

Quick photos from the back of my Suburu…

After further review it is wired for 120.  I diagnosed the wiring on the switch and it is wired for 120.  The switch handle was loose so it would not engage the forward position.  Will update with wire details later but typically the wires coming out of the motor are labeled – T1, T2, T3, etc and if I recall a white stripe wire(s) for line in.  From what I understand about motors, if you can’t read/identify the wires then there is no way to measure/figure them out.

Another note: this wiring had a 115v Capacitor inline with one of the “line-in” wires?  This makes no sense to me and I think was added later in it’s life for no good reason.  Too small for starter or run capacitor from what I have read.

Rivett 918s Cabinet Paint

Decided the cabinet was too far gone even for me:)  I generally like the as found paint but this was pretty far gone.  Leaving the lathe alone (for now).  To do that correct it would have to be taken down which is something I don’t have in me at the moment.  Lathe is working good so leaving well enough alone.

Greenfield Tap and Die (GTD) 1/2″ Self Opening Die Head

Not to be confused (as I did in earlier post) to the Geometric Die Heads.  After much digging around I have found tons of Geometric Die Heads, a few odd brands but nothing like the GTD one pictured below.

This GTD version seems to be adjustable over a particular range of diameters.  The markings on the chasers (the only ones with it) say 18 18.  Typical Type D chasers are specific to diameter and tpi – say 5/16-18 for instance.  This GTD version is marked 1/2″ so basically the 18 18 chasers would be useful for 5/16-18 and not much else I am afraid.

The D type chasers are available, yet to find the J Hook looking ones that are used in the GTD Model.