Turn a sphere between centres
Demonstrate a range of turning techniques
- Use of a spindle/bowl gouge to achieve the outside form.
- Marking out the sphere with the use of vernier gauge
- Show the jigs required to complete the turning process
- Use of pencil lines to orientate the sphere for final turning
- Use of templates to assist the turning process
- Sanding
Demonstrate the use of a Micro motor Machine and the many advantages over the other options available.
- Ease of bur change.
- Lack of hand piece vibration.
- Very quiet running when operating.
- Good range of speeds
- No flexible drive to contend with.
Run through a few carving and embellishing options for this particular form and the range of burs required to create them.
Wood Requirement
Cube of wood between 60mm and 90mm
Soft timber 40mm x 40mm x 30mm (cup chuck drive)
3mm MDF template – sphere size ie: 75mm
Turning Tool Requirement
PPE
Spur drive
Tailstock centre
Tailstock centre with cup chuck provision (to finish turning the sphere)
Bowl Gouge – medium or large
Spindle Gouge – 13mm or larger
Round Nose Scraper – 12mm – 25mm wide
Skew Chisel – 13mm – 25mm wide
Parting Tool
Vernier Gouge
Super glue, sanding grits, power sanding (drill) with Velcro sanding pad
Pencil & paper
Eraser
Embellishment
Dremel/ Micro Motor (any of these will suffice) With the provision to hold a
3/32 Bur
Round Bur 1.5mm
Round Bur 0.5mm
CCF Cutter 2mm
Round Bur 5mm
Knife Cutter 4mm
Barrel Bur 6mm
Krause Bur 1mm
Square Cross Cut Bur 4.8mm
Cup Burs 1mm 2.5mm 4mm and 5 mm
Pencil and Eraser