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Be very careful! I've bought 2 Chinese dividing heads - one from Ali and one from Amazon. Both garbage due to appalling condition of worms and gears resulting in as much as 3⁰ rotational error. Okay for crude layout work, useless for gears or other precision work. I now have one from the...

Sorry, bandsaw side guide rolls cannot have any crown - the blade will wander off to one side. On these small saws, the side rollers are cam followers and of two types - flat with back up ball bearing or shoulder with no back up necessary.

I used Acad 2000 till the computer crashed a couple of weeks ago. I broke down and paid $449 US for Progecad which accepted my Acads and is set up to work almost exactly as Acad. Took awhile to get the ribbons how I liked but otherwise I'm very happy. The $449 is lifetime - not...

Well to each his own. Maybe it's the equipment but in the 50+ years I've been drilling holes, I've NEVER had a problem with straightness and I've never started a drilled hole by boring. However there may be a variation in methodologies. You are correct, if the starter is off, the drill will...

As soon as a drill goes far enough off center, it will break; hence the use of a center drill. However, at these diameters, the pilot must not have a flat bottom or the drill will wander around against it and break. Seems to me (and I've no experience doing this) that an impression such as a...

I echo the previous comments; I'm very impressed. Thanks for sharing.

As for MJ Eng, you'd be dealing with Alan Barsby who in my experience, is a total waste of air. I celebrated the first birthday of my order for gears after a number of phone calls and emails had failed to move him. I then went to England to confront him at the GDSF where he promised to supply...