After the Spring Center and the Soft Faced Hammer, the next lathe project I tackled was a set of Screw Jacks. Why? Well, to create my jacks I had to build on my tapping and single point threading skills, both of which needed some work.
The project took several tries because during the threading process I kept setting the cross slide at 29.5 degrees from the centerline of the part, rather than 29.5 degrees from perpendicular to the centerline of the part. My threads kept coming out looking like buttress threads. I was so frustrated!
But once I figured out what I was doing wrong, my project progressed nicely. I don’t have a set of plans available for you to build my own, but I did find a set of plans by James Appleby for making a much simpler version of the ones I made. I’ve attached the plans below. Be sure to visit the Home Metal Shop Club for this project and other great project ideas.
If you’d like a set of plans for my jacks, leave a comment. If there’s enough interest maybe I’ll create a set of plans for them.
Machinists_Screw_Jack.pdf (331.8 KiB, 8,008 downloads)
NOTE: You need to be a registered member (and logged in) to download this file.
- HOW? You can register using the yellow "Register" link in the upper right corner of the website. If you've registered previously you just need to log in using the "Have an account? Log In" link located in the upper right corner of the site.
- COST? It's currently free to register and become a member of this site.
- PRIVACY? Your email address will be encrypted and kept private.
YOU WILL NOT RECEIVE SPAM FROM THIS SITE!
- BENEFITS? Registering for the site allows you to download plans and other documents. Registering will also grant you forum access, allowing you to log into the forum using the same username and password you used to register for the site.
- RSS? Subscribing to the RSS feed or subscribing to receive email messages whenever the site content is updated is not the same as registering. If you would like to receive email notifications you still need to sign up for that service. AND WE STILL WON'T SPAM YOU! We will, however, send you an email whenever the site is updated with new content. That's typically about 1 email a month or less.