As the Master Classes and Articles will seemingly never reappear in their proper place, I have gathered together in one place the ones I and others have saved in PDF format.
MasterClass 2001 - Build a Baldwin 8-16-D 2-6-0: A Locomotive Adventure By David Fletcher
David Fletcher's definitive first MasterClass showing how to scratchbuild an electric steam locomotive.
MasterClass 2002 - Build a 2-6-6T / 0-6-6T Mason Bogie: An Adventure in 1:20.3 By David Fletcher
David Fletcher's second extensive MasterClass showing how to scratchbuild an electric Mason Bogie steam locomotive.
A Lasercut Steel Chassis
DIY Chassis From Styrene
Scratchbuilding a Tender Truck for Your MasterClass Mason Bogie by Jens Lasch
Drawing - Lasercut Chassis
Drawing - Tender Truck
Mini-MasterClass 2003 - Build a Carter Brothers Coach and Combine By David Fletcher
Mini-MC 2003 Article
1874 Coach Drawings
1874 Combine Drawings
1880 Coach Drawings
1880 Combine Drawings
Additional Plastic Parts for Coach
Drawing DXF Files
MLS Live Steam Class 2004 - Build A Live Steam Accucraft Ruby Kit By Tom Farin and Various Authors
Tom Farin's MasterClass based upon building and modifying Accucraft's live steam Ruby locomotive kit, supplemented with sections by various authors. Unfortunately, this class is incomplete as it was never finished.
Mini-MasterClass 2005 - "THE SINGLES" - Build a Classic American 4-2-4T Locomotive By David Fletcher
David Fletcher's Mini-Class on building the C.P. Huntington. (All drawings are contained within the downloadable zipfiles)
MasterClass 2007 - The Porter Bell & Co. Type C: 0-6-0 & 2-6-0 By David Fletcher
David Fletcher's Mini-Class on building a Porter Locomotive.
Chapter 1 - History
Chapter 2 - Construction
Drawings and Plans
The myLargescale.com Figure Class! By Chris Walas
Chris Walas shows you how to make your own amazingly crafted figures in any scale you happen to be modeling in.
Scratchbuild a Backwoods Water Tank By Dwight Ennis
Dwight Ennis shows you how to build a backwoods water tank from your own home-sawn lumber, and takes great pains to show you all the tools and techniques you'll need to scratchbuild from wood virtually any structure you can dream up. Techniques are also applicable to other models besides structures (locomotives, rolling stock, etc.) using other materials. If you've never scratchbuilt anything before, this is a great place to start.
Part I and II
Backwoods Water Tank Drawings
Build a Denver South Park & Pacific Waycar in 1:20.3 By Peter Bunce
Scratch-build a 1:20.3 scale 29’-6” Flatcar By Wayne Spence
Complete Article - All Four Chapters
The Phil Jensen Story: Delton To Hartland - Life as a Product Designer By David Fletcher