Denford Software & Machines

Denford Software & Machines

 
 

Denford Software & Machines

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 Post subject: pulley for starturn 4
PostPosted: Mon 09 Jul , 2018 20:19 pm 
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Joined: Wed 27 Feb , 2008 20:10 pm
Posts: 20
Location: Huddersfield , West Yoks
hi all
i am at the moment converting a denford starturn 4 to Mach 3 using all modern electronics from cnc4you which is coming along nicely
the starturn i bought was only a part machine with some parts missing , i am now rebuilding & cleaning the bed and headstock but i am short of the poly v pulley that fits on the end of the spindle . i know that the pulley has 6 grooves , has a bore of 16mm dia but do not know the outside dia of this item all i want is to be able to run up to a max speed of 1800 to 2000 rpm
hope somebody on this site can help me & maybe tell me of a firm that can supply this item
all the best
robert

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Denford Orac cnc Lathe
Denford Easiturn Lathe with a Fagor 8020 TG control system also fitted with a biffaldi 6 station tool changer


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 Post subject: Re: pulley for starturn 4
PostPosted: Wed 11 Jul , 2018 22:59 pm 
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CNC Guru
CNC Guru

Joined: Tue 29 Apr , 2014 18:38 pm
Posts: 331 Hardware/Software: Starturn 5 (sort of running, I will get this done!)
Lathe cam designer V1.11
Quickturn 2D Design
FANUC offline and online programs.
Microrouter Pro NS V5 (microstep)
VR2 and VR5
Roland CAMM3 PNC3000 (For Sale)
Boxford VMC260
Techsoft 2d Design tools V1 > V2
ProDesktop
Fusion 360
Deskproto
The way to work it out is find out your max motor rpm (should be on the label) look at the dia of the motor pulley, and a bit of maths.
My ST5 has a max motor rpm of 4000 and max spindle rpm of 1800. I think the speed control is limiting the motor rpm to 3600 as the pulley set up is 2:1


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 Post subject: Re: pulley for starturn 4
PostPosted: Thu 12 Jul , 2018 6:17 am 
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Joined: Wed 27 Feb , 2008 20:10 pm
Posts: 20
Location: Huddersfield , West Yoks
hi
thank you for your reply to my posting , i will have a look at the motor label today
all the best
robert

_________________
Denford Orac cnc Lathe
Denford Easiturn Lathe with a Fagor 8020 TG control system also fitted with a biffaldi 6 station tool changer


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