Straight line engine turning
{{Short description|A machine tool used for Guilloché}}
A straight line engine turning machine is a machine used for engraving decorative patterns on a surface. The engraving may be referred to as Guilloché, which also encompasses patterns created with the rose engine lathe.{{Cite web |title=The Naked Watchmaker |url=https://www.thenakedwatchmaker.com/guilloche-part-1 |access-date=2023-10-07 |website=The Naked Watchmaker |language=en-US |archive-date=2023-10-19 |archive-url=https://web.archive.org/web/20231019154141/https://www.thenakedwatchmaker.com/guilloche-part-1 |url-status=live }} Where the rose engine is based on a lathe, the straight line engine has more in common with a metal planer machine.
The straight line engine turning machine commonly consisted of an upright slide, a cross slide, a slide rest which holds the cutting tool, and a pattern bar holder{{Cite book |last=Matthews |first=Martin |title=Engine Turning 1680-1980 |publisher=Biddles Books |year=2017 |isbn=9781999922849 |edition=1st Reprint |location=United Kingdom |pages=98–99 |language=en-gb}}