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Industrial Quality Small HF Spindle from StoneyCNC
![Doug Doug](http://stepcraft-systems.com/wp-content/uploads/wpforo/avatars/Doug_33359.jpg)
https://youtu.be/nNKvA6egEjw
Final thicknessing of spruce tonewood strips (457 x 40.5 x 12.3 mm) prior to gluing between two 3.35 mm plywood facing panels to make 3/4" (19 mm) quality custom blackboard for the body sections of a Brian May Red Special replica guitar. The video is speeded up 10x. The actual cut time is approximately 15 minutes.
Stepcraft 2/840 CNC machine, StoneyCNC small industrial quality HF spindle, 6 mm diameter 4 flute solid carbide flat end mill, 18,000 rpm spindle speed, 2,500 mm/min XY feed rate, 90 mm/min Z plunge rate.
Stepcraft 2/840, StoneyCNC industrial HF spindle, 4th axis, TurboCAD 2016 Professional 64 bit, MeshCAM, GWizard feeds & speeds calculator, UCCNC
Hobby use: guitar building (luthiery), https://dsgb.net
![Doug Doug](http://stepcraft-systems.com/wp-content/uploads/wpforo/avatars/Doug_33359.jpg)
https://youtu.be/7la2nZ4Gkt4
Milling a Red Special Guitar Truss Rod Bolt Access Cover from Acrylic with a Stepcraft 2/840 CNC Machine
The first run is to thickness the 3 mm cast black acrylic (Perspex) sheet from a nominal 3.0 mm down to around 1.6-1.7 mm (nominally 1/16" but with a little left to allow for sanding with 1500 grit wet and dry abrasive paper and polishing with T-Cut)
Some still pictures of the finished product are included at the end of the video along with the completed Bakelite nut.
Spindle speed: 7,500 rpm
XY feed rate: 1,500 mm/min
Z plunge rate: 30 mm/min
Depth per pass: 0.5 mm
Cutter (thicknessing path): 6 mm four flute solid carbide end mill
Cutter (drill hole and outline) 2 mm two flute solid carbide TiAlN coated slot drill
Material: 3 mm thick gloss black cast acrylic
Spindle: StoneyCNC small industrial quality spindle
Stepcraft 2/840, StoneyCNC industrial HF spindle, 4th axis, TurboCAD 2016 Professional 64 bit, MeshCAM, GWizard feeds & speeds calculator, UCCNC
Hobby use: guitar building (luthiery), https://dsgb.net
![Doug Doug](http://stepcraft-systems.com/wp-content/uploads/wpforo/avatars/Doug_33359.jpg)
For those of you on Facebook, check out a detailed build thread for my Brian May Red Special guitar and my first build, a 3/4 scale Red Special replica. I met Brian on 3rd December 2017 on the Glagow leg of the current Queen + Adam Lambert tour and he signed the little guitar. Pictures are included on my blog.
https://www.facebook.com/DougShortGuitarBlog/
Stepcraft 2/840, StoneyCNC industrial HF spindle, 4th axis, TurboCAD 2016 Professional 64 bit, MeshCAM, GWizard feeds & speeds calculator, UCCNC
Hobby use: guitar building (luthiery), https://dsgb.net
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