Mineral Glass (Rough Edge) Convex Clock Glasses
Convex clock glasses are in traditional imperial sizing and a 1/16th plus or minus allowance must be allowed when ordering.
For how to cut holes in glass easily, please see the video link above.
Doming Heights:
MMG Interior Doming Heights:
Barometer Glasses requiring holes need to be drilled using our diamond coated core drills (see items D47369).
For how to cut holes in glass easily, please see the video link above.
Doming Heights:
- For all non sternkreuz (MMG) convex glasses allowances must be made as due to the manufacture process, doming is inconsistent
MMG Interior Doming Heights:
- Up to Ø60mm = Doming height 5 - 6mm
- Up to Ø70mm = Doming height 6 - 7mm
- Up to Ø90mm = Doming height 7 - 8mm
- Up to Ø100mm = Doming height 8 - 9mm
- Up to Ø120mm = Doming height 8.5 - 10mm
- Up to Ø140mm = Doming height 10 - 11mm
- Up to Ø160mm = Doming height 11 - 12mm
- Up to Ø170mm = Doming height 12 - 13mm
- Up to Ø180mm = Doming height 13 - 14mm
- Up to Ø190mm = Doming height 13 - 15mm
- Up to Ø200mm = Doming height 15 - 16mm
- Up to Ø210mm = Doming height 16 - 17mm
- Up to Ø220mm = Doming height 18 - 19mm
- Up to Ø240mm = Doming height 19 - 20mm
- Up to Ø260mm = Doming height 20 - 21mm
- Up to Ø300mm = Doming height 22 - 23mm
- Up to Ø330mm = Doming height 24 - 25mm
Barometer Glasses requiring holes need to be drilled using our diamond coated core drills (see items D47369).
- Ideally used with a drill press
- Or a wooden template with a hole the same size to start
- You will need to use water to cool the drill bit
- See You Tube Link: https://www.youtube.com/watch?v=U_NtTBTGp20
