Messages

1

General Mach Discussion / Re: router tips burning

« on: December 11, 2009, 03:45:15 AM »

An up date on my router bit/tip burning
I cannot seems to get my feeds up past 430 mm per min
computer is a 2.8gig   
2 gig ram
and a 8400 giga bite video card with 512 ram on that
steps set to 1-1  my motors are 1:1 to screw  1.25mm per turn
so this is 160 steps for 1 mil ,This I have set up
power supply is a x radio work shop power supply 12 24 volt at 30/40qmp max
I run on 24 volts
Have used  Aerospace Tb_axis HY-TB4DV-N controler
and the 3 axis micro stepper motor controler    by Mechatronics

stepper motors are 1.8Nm/2490zin
1.8 deg  /200  from cnc machinery
4 leads wiring
thanks for help roly

2

General Mach Discussion / router tips burning

« on: December 07, 2009, 06:25:55 AM »

help needed
I keep burning the router tip (tool)
using a dremel tryed 50% to 100% rpm ( slide control)
3.4mm 2 flute router
7mm (3ply)  ply wood
Z cut depth is set to 1.5mm pass
feed rate 450mm per min
if I try to go faster stepper motors just make a noise and sit still
motors are 1-1 drive to a 1.25mm per turn screw
have mirco steps set with controler  1/16  2560 step per mm
controler is TB4-axis  HY_TB4DV-N
down loaded  dinosaur  my software   is v carve pro
router table can only take 600x300mm so nested file and  v carve made 6 sheets to cut
 But I only get about 50% of 1st sheet cut when I can smell smoke  ( have a little computor fan blowing on tool)
and tool tip starts to look black
Help needed
what can I do to make tool last longer
thanks for any help
roly