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Category Archives: Workshop Notes

Change Wheel Calculator for Warco 918 Lathe

Here is a spreadsheet to calculate all the thread pitches possible on a Warco 918 lathe using the change wheel set provided with the machine :  XLSX (newer versions of Excel) and XLS (Excel 97 and 2003, also works in LibreOffice/OpenOffice). The cells are all locked except D4, which should be set to “y” or […]

Liking LibreCAD – Free cross-platform 2D CAD

I’d been using DraftIT for a number of years when I wanted to be able to work on plans using both my home computer (Win XP) and work laptop (Ubuntu Linux) while the family uses the home PC. After some searching, I came across what is now called LibreCAD. It takes a little while to […]

Good Results with Cheap TCMT Tools

From the outset of setting up my metalwork shop I decided to use tungsten carbide tipped tools for the lathe. I just don’t want to be bothered with the fiddle of sharpening and having to keep changing the shims under the tools. This is at variance with the received wisdom that the low power and […]

DIY Milling Machine Rev Counter for Under £5

As I have a variable speed millling machine without a digital readout (its an Axminster SIEG X2) and wanted a bit more control at the hundreds-of-RPM level than I could get by listening to the pitch of the machine or watching the chuck, some technology was required… Cycle Computer Rev Counter on an X2 Milling […]

How to Make and Use a Split Bush (Chucking Piece) for Concentric Turning

I’ve recently been making a Stuart 10V with the help of the Andrew Smith/Pengwern building guide. At one point they recommend the use of a split bush to afford a greater degree of concentricity in turning the piston rod (and both the piston and cross-head attached to this). A sketch of the split bush is […]