1. #1
    m_c's Avatar
    Lives in East Lothian, United Kingdom. Last Activity: 4 Hours Ago Forum Superstar, has done so much to help others, they deserve a medal. Has been a member for 9-10 years. Has a total post count of 2,282. Received thanks 262 times, giving thanks to others 6 times.
    So, I really need a lathe with rigid tapping ability and live tooling, but workshop space is restricted, and power supply sufficiently limited to rule out any cheap (aka big!) industrial options.

    I could upgrade my Denford Cyclone to get rigid tapping, but that would mean a period without a functioning lathe.

    A few months ago, while stood threading some parts on my much abused Clarke CL500, I thought the nice flat topped bed would be almost ideal to mount a couple linear rails on, and combine it with a gangtool setup would be somewhere in the ball park of what I'd need.
    But after a bit measuring/sketching, I came to the conclusion the bed would likely be too narrow once a reasonably sized cross slide is fitted and loaded up with my ideal amount of tooling.

    So letting the idea roll around in my head, the big issue is a suitable base. I'm not sure when I had the eureka moment, but that's where my recent post about Epoxy Granite comes in. Why don't I cast one?

    At the moment, I've got as far as sketching some rough spindle/bed shapes, and working on the list of things that will need to be allowed for in the base mould/cast I.e. ballscrew/motor mounts, cable routing, way cover mounting screws (aka the little details that could potentially cause big headaches!).
    I'm probably going to go for a slant bed build, as although it makes the casting/machining a bit more problematic, the swarf management is far better in the long term.

    I'm still very much undecided about the spindle mount. I'm likely to buy a spindle from China, but I'm not sure whether a steel weldment, or another EG cast would be better.

    So this thread is going to be somewhere to list my ideas/thoughts, and for anybody else to add in comments/advise/criticism (I already know this could be very likely end up in a reasonably expensive stupid idea!)
    Avoiding the rubbish customer service from AluminiumWarehouse since July '13.

  2. #2
    Doddy's Avatar
    Lives in Preston, United Kingdom. Last Activity: 4 Hours Ago Has been a member for 5-6 years. Has a total post count of 415. Received thanks 81 times, giving thanks to others 12 times.
    Can't offer anything other than the knowledge that I'll be following this thread with interest.

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