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  • Walschaerts Valve Gear

    Walschaerts Valve Gear

    by

    Neil Wyatt

    –

    Download Duncan Webster’s article from Model Engineer issue 4729, 3 November 2023 here. It provides useful background information on the functioning of Walschaerts valve gear, which will be useful to anyone following his article How to Set Up Walschaerts Valve Gear in Model Engineer & Workshop issue 4775, April 2026. Download Walschaerts Valve Gear by…

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  • 3D Printed Hone Tool

    3D Printed Hone Tool

    by

    Neil Wyatt

    –

    Download the STL and STP files for Alan Bryan’s 3D Printed Hone Tool. See his article in Model Engineer & Workshop issue 4772, January 2026, for full details of how to complete, assemble and use the tool with other parts. Many thanks to Alan for making these files available.

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  • Super 7 Lever Tailstock Templates

    Super 7 Lever Tailstock Templates

    by

    Neil Wyatt

    –

    Here you can download a version of Fig. 2 from David Haythornethwaite’s lever tailstock article in Model Engineer & Workshop, issue 4770. Take care to use the ‘full page’ setting and print on to A4 paper, and check the dimensions are correct before proceeding to cut metal. https://www.model-engineer.co.uk/wp-content/uploads/sites/4/2025/09/Lever-Tailstock-Templates.pdf

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  • The 2025 Stevenson Trophy Entries

    by

    Neil Wyatt

    –

    This page includes the full entries for this years’ competition. You can cast your votes here: tinyurl.com/55c35b3s Dave Sanderson – CNC mill As my projects now include shapes which are not trivial to manufacture by manual means I decided I needed a small CNC mill. The majority of intended use is for small (under ~100mm…

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  • Using Coventry Dieheads and Die Jig Tables

    by

    Neil Wyatt

    –

    David Earnshaw’s excellent article on using Coventry Dieheads appeared in issues 4657, 4659 and 4661 of Model Engineer in 2017. They are essential background reading for Peter King’s articles starting in ME&W 4768-4771, September-December 2025 for anyone unfamiliar with these tools. You can also download Peter King’s Coventry Die Sharpening Jig tables that accompany the…

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  • Curved Slot Calculator

    Curved Slot Calculator

    by

    Neil Wyatt

    –

    In Model Engineer & Workshop issue 4767, Johannes Schiff described his method of calculating how to angle an end mill to make a slot that closely approximates a true circular cross-section. This approach uses an Excel spreadsheet, that can be downloaded from the link below. https://www.model-engineer.co.uk/wp-content/uploads/sites/4/2025/06/Curved-Slot-Claculator.xlsx

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  • Drawings for Tailstock Chuck Mounts

    Drawings for Tailstock Chuck Mounts

    by

    Neil Wyatt

    –

    In Model Engineer and Workshop 4766, July 2025, Gavin Blakeman described making a revolving mount for a 100mm chuck to fit in a lathe tailstock. He also produced drawings to suite 80mm and 125mm chucks. Note that you should ensure the dimensions such as register size and stud PCD are correct for your chuck. You…

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  • Patterns for Arnold Throp’s Mill Engine

    Patterns for Arnold Throp’s Mill Engine

    by

    Neil Wyatt

    –

    The zip folder you can download below contains various STL files from David Thomas to accompany his series A Tandem Compound Mill Engine – Corliss valves and fittings, in ME&W: https://www.model-engineer.co.uk/wp-content/uploads/sites/4/2025/04/Corliss_Pt_326_Dashpot_Bracket_Pattern.zip https://www.model-engineer.co.uk/wp-content/uploads/sites/4/2025/10/Corliss_Pt_388_Atmospheric_Exhaust_Valve-Parts.zip https://www.model-engineer.co.uk/wp-content/uploads/sites/4/2025/10/Pipework-Patterns.zip You can also download a video of the trip gear in action:

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  • Belt Joining Jig

    Belt Joining Jig

    by

    Neil Wyatt

    –

    Here you can download the STL files for the miniature belt-joining jig described in part 14 of David Thomas’ Corliss Valve Mill Engine Series.

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  • X1 Mill Belt Drive Upgrade

    X1 Mill Belt Drive Upgrade

    by

    Neil Wyatt

    –

    John McPhee used 3D printed pulleys to perform a belt drive upgrade on his X1 mill. His article describing the upgrade appears in Model Engineer & Workshop, Vol. 234, No. 4762, March 2025. You can download John’s STL files for printing your own pulleys from this page, together with the OpenScad files that produced them.…

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