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Author Topic: bridgeport boss 3 upgrade  (Read 2483 times)

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Offline mark4

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bridgeport boss 3 upgrade
« on: May 27, 2009, 09:10:46 PM »
hello i am a machine rebuilder and i have been retrofitting a boss 3 with a breakout board and mach 3. the machine is stepping well however i have been having trouble with the z axis it crashes in the upper limit i have read a few posts where they say the home switch is not used however the Bridgeport originally went up to that position then slowed down and creeped home that is what i would like to recreate i have an idea of hooking up the input and assigning it so when the input is triggered the z would slow down however i cant quite work it out if there is a post on this or you have any info i would appreciate it thank you


Re: bridgeport boss 3 upgrade
« Reply #1 on: May 27, 2009, 09:52:42 PM »
It can be done.  You would use the primary switch to active a VB macro to slow the feedrate then allow the secondary switch to act as the home limit. BUT there may be some quirks to work out

This is the best approach as you do NOT want to suck the spindle up into the quill and have it bottom out,  Bad things can happen(;-)   AND Yes I own one(;-)

Let me know IF you need help, (;-) TP