
WARNING: Check the fine feed of your quill! - The Hobby-Machinist
Aug 9, 2023 · It looks like the pitch of the column rack is 8mm and the pinion gear has 10 teeth, This would make one turn of the hand wheel equal to 80mm or 3.1496" of quill travel. There also appear to be 37 teeth on the on the worm gear resulting in .0851" quill travel per rev. of …
Craftsman 109 lathe | The Hobby-Machinist
Jan 12, 2025 · So with that said I would like to find a new lathe chuck. I would like one that is a 3 inch chuck with 1/2 by 20 tpi like it originally had. Does anyone know of a replacement chuck like this that would be adequate at a decent price. I have sank too much at this point and really don't want to put much more. One from amazon or similar would be fine.
Stuck in fine feed, RF-30 - The Hobby-Machinist
Oct 15, 2020 · Mine doesn't stick. It only takes a slight snugging of the engagement knob and the fine downfeed works. Loosen it just a little and the fine feed disengages. I suspect the problem you're having is due to dried grease in the worm or the silver sleeve behind the handles that engages the worm of the fine feed.
How to do fine threads | The Hobby-Machinist
Feb 11, 2018 · Usualy, a microphone (modular) is made of a tube shaped thing that contains an electronic circuit and at one end, the output connector, and at the other end, a single pin connector. This end of the tube is threaded with a fine pitch and is meant to receive the capsule element mounted in a special housing.
Mini mill fine tune mechanism - The Hobby-Machinist
Feb 27, 2020 · While using my MM fine adjustment, the head suddenly dropped enough to cause the cuter to jam into the work. There's a ton of play in this knob but I do not see any way to remove it. I took it all apart and everything looks OK to me except the worm gear. The teeth look flattened and are very shiny. I have the Micro Mark mini mill.
Extending a Road Bike Carbon Fiber Steer Tube – A Reasonable …
Feb 18, 2025 · I think you will be fine. Epoxy lugged construction was common when frames were made from round CF tubing. Steerer tubes are very thick. Outer sleeve risers for steerers are an off the shelf part. I've always been a so-called clydesdale (100kg+, aka fatty) and I've run a number of carbon steer components on MTB and road without issue.
Troubleshooting scale | The Hobby-Machinist
Jan 25, 2025 · I recently came across a touchdro and older igaging scales. I also had purchased a new set of igaging absolutedro plus scales off of Amazon. The touchdro unit I was told is from 2019. It all powers up fine, I went through the initial setup settings from …
Fine feed slipping | The Hobby-Machinist
Jun 13, 2020 · The fine feed gearing rotates the outer sleeve, which can rotate freely with respect to the inner shaft. The shaft (deeper inside) contains the pinion that runs the spindle up and down. The spider is rotationally locked to the shaft with a key. The fine feed sleeve and the spider are pulled together when the coupling knob is tightened.
Fine feed on LMS mill - The Hobby-Machinist
Mar 25, 2013 · I use the z-axis gib lock to put some drag on the power head, or lock it completely. I also use an inexpensive capacitive scale with a digital readout on the z-axis. Otherwise the lash and sticky feed makes the reading on the fine feed highly uncertain. The air …
4x6 Blade Width | The Hobby-Machinist
Feb 6, 2025 · The switch will work fine if the work is supported (raised in the vise) such the saw can finish the cut, and then it will "drop" to it's normal finish (off) position. For use with the vertical table- It works fine for wood, but the loss of the set on a blade tensioned for metal, it'll loose it's set on one side over time. That means crooked cuts.