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Thread: log lathe tailstock

  1. #11
    davidmoody's Avatar
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    Jan 2016
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    This might help a little

    Quote Originally Posted by revid View Post
    wondering if anyone has made or has plans for a tailstock that I can use or modify for a homemade log lathe?
    Hello, I received an email asking if I could offer any help to your question. I'm not sure that what I am doing is on the same page as your project, I'm basically building a customised double spring pole lathe inspired by Roy Underhill's design. It's been on hold for a while, had lots of more important things to do, so haven't got to the point of designing and building the tailstock yet, but if you check out part 4 of my build you will see my first, less than successful attempt at a headstock. The only thing that actually went wrong was the diameter of the spindle that I used, it was much to large and severely slowed the spinning rate down. The next step will be to replace it with one of much smaller diameter.

    However, if you take notice of how I've constructed the headstock you might see how I will be designing the tailstock. It will comprise of one piece of wood cut similar to the piece used in the headstock, and another about half the height, and a similar distance inbetween, with smaller pieces joining them together, and a wedge used underneath to lock it down, kind of like how I constructed the frame of the lathe itself. Anyway, if you click on the link below you might just find something that will get you thinking, and hopefully you'll come up with a good solution.

    Double Spring Pole Lathe – Woodworking by David

    Best wishes,

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  2. #12
    Ed. is offline
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    Ed.'s Tools
    Quote Originally Posted by revid View Post
    Nice job Ed.In pics 4 & 5,what did you use to make those two pieces? In pic 8 I am guessing that once you turn handle that pushes one rod thorough the other. I see you use a live center on end,whet did you use on the headstock? My lathe turn very slow, I have a planer head mounted on a carriage that travels the length of the log,cutting as it goes.I have the carriage controller via speed controller and relays. Its the same carriage that I use to travel my bandsaw which is mounted on it,I just turn the speed down on carriage.I have a gear reduction to turn the logs and have a 5 hp electric 3450 rpm motor to "plane" the logs round. My main issue is getting something for a tailstock that once I lock it in place I need something that will push tailstock into log and keep it there. I am thinking about a ram from a horizontal hydraulic jack.That way once its lock I just crank the handle and push tailstock forward into log.What do you think?? I also like the idea of side axles with pillow block bearings but how to push center into log?
    Hi Revid,

    I am not sure that that you are referring to the correct pic numbers,
    Pic 4 & 5 are just the bed I beams and the cross beams which will support the bed
    Pic 8. is the double pulley which connects to the motor.

    I think that you maybe referring to the following?

    33. Welded a 30mm x 3.5mm nut I made inside a 8mm x 60mm pipe for the tool post holder. This becomes the sleeve for sliding the threaded MT3 holder in and out.
    34. Tool post holder and sleeve.
    38. Tool post handle with stainless tube handle sleeve.
    39. Tool post locking nut.
    37. Tool post mostly assembled

    The planer idea that you have is a modification that I had in mind to do at a later date when time permits, using a mounted wood router on rails to mainly to take the excess wood from a log to make it cylindrical without having to use wood chisels to do that, using the VSD I can rotate an unbalanced log slowly and just use the router to remove the excess. Using the VSD, the slower I go the less torque I have, currently I have a 2 step range, High and Low and variable via VSD. so I am thinking about redoing the motor setup and moving the motor outside and putting in a multi step pulley system to vary the RPMs of the faceplate without loosing torque, and then using the VSD to fine tune the RPM's within the step range.

    I don't think I can give you any ideas about the hydraulic tail post, with mine I have to physically push the entire back end post towards the log then clamp it down using bolts (Pic 39) to the middle of the bed, and then using the screw to push the live centre in to the log end. Once I have the live centre embedded into the log end I then just lock the nut on the thread and that keeps it all in place. If I understand your meaning, you could use the hydraulic ram to push the entire back end close to the log end and then just use the setup I used to screw the live centre into the log. For me using hydraulics is a lot of effort and cost to engineer something just to do what that I can do manually in about a minute, undo two bolts, slide post, clamp two bolts, adjust live centre, done.

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