is currently renewing the grate bottom for his 5in. Gauge Netta 0-8-0
locomotive, ready for the new season.
The project is based on the "Rosebud Grates" article, published in Model Engineer.
Starting point is
a blank 8mm MS plate courtsey of Pete B. Plate is marked out at 7mm centres,
spotted, centre-drilled, 3mm drilled, and countersunk.
225 holes in all. Time consuming!
A test piece at totally different centres was tried and worked on New Years Day.
This latest grate has considerably more holes but only 14% of grate area for air as opposed to 50% for regular bar grates. Hope it works!
Many thanks to John for sharing this with us.