HandLathe.com – Lathe Products and Blog

This is a short video of my CNC-converted Grizzly Mill-Drill (Sieg Super X3) being used as a lathe to cut a switch knob for a PDP-7 computer. A 3/8" 6061-T6 aluminum bar about 3" long is mounted in a collet in the mill, and is driven past standard lathe tools mounted to the mill table. The spindle is running in reverse direction due to the orientation of the tools. I created a G-Code program by hand to make the two different tapers and cut off the knob at the end. Depth of cut was .010 because heavier cuts caused the rod to deflect too much. Spindle speed is about 800 RPM; cuts were made at 3 inches/minute except for the final cutoff, which is about .3 IPM. UPDATE: I have received a good number of questions about the videography. I used an HD camcorder (Sony HDR-SR11) which captures in AVCHD format. youtube will not accept AVCHD video, so I used a program called Free HD Converter from Koyotesoft.com to convert it to MP4 at 1280×720 resolution; which I was able to upload directly to youtube. Not much work all told, and the results speak for themselves. Of course, good even lighting and using a tripod are key to getting good video.

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Tubalcain demonstrates the actual grinding of a lathe tool bit. This the last of 4 videos on the subject.

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Two methods of aligning the headstock center with the tailstock center. AKA–how to turn stock between centers WITHOUT a taper.

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Two methods of aligning the headstock center with the tailstock center. AKA–how to turn stock between centers WITHOUT a taper.

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HQ800 Harbor Freight 3in1 Mill Lathe CNC Mach 3 Conversion. First attempt at a video. This 3 in 1 came from Wholesale Tool but is the same as the Harbor Freight unit. X & Y are Gecko driven servos, Z is Gecko driven stepper (which replaced 2nd burnt out Z servo motor!)

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Tubalcain explains the angles of a 60 degree tool bit which will be used to cut threads on a lathe. Also covered are several different types of commercial threading tools such as ALORIS & ARMSTRONG.

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Log Lathe Making Veneer for Plywood

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Darrell introduces you to the lathe.

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My first go at a steam engine (run on air at this time) It is made from the plans by Elmer for the Baldy engine. Similar in build to his little wobblers,but uses the part spherical piston to create the wobbling action. I have slightly modified the build to suit my taste but have kept the heart of the plan intact. It runs from 5psi to 30psi and could be better once it is run in. the flywheel and piston were made with the use of the Ball turning tool designed by Steve Bedair. (Máquina de vapor …

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show how to use the grinding tools to re sharp the various mill and lathe tools

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