Not homing

[dgs]

Hi, I have a prt alpha.I am runing 3.4.15 software. My problem is sometimes I push the spacebar to stop a program , ofter the z will lift to 0 , and if I jog home all is good in my life. then there is somedays I stop and the z does not lift , I use JH and the z lifts to a lower value I.e not 0 . my screen is giving me 0,0,0 but the Z value is too low . the other day it cut into a job on this cycle. super bummed . any help on this?

[beacon14]

I had the same problem (http://www.talkshopbot.com/forum/messages/26/23800.html).

Scott at Shopbot suspects it is a communications problem as the space bar interrupts active communications between the computer and the machine. I added a dedicated USB 2.0 hub as has been suggested elsewhere on this forum and have not had a repeat since. I still visually check the bit height after a space bar or an "S" stop just to be sure.

[richards]

Also, your version of SB3 is fairly old. The latest version has a lot of new nifty features.

[dgs]

Thanks guys I will try both and see if that works.

[knight_toolworks]

I had problems with the newest software getting the settings right. measurements were off and all kins of wacky problems. I have last years prt alpha any idea's?

[dgs]

I had that before, make sure that the you remove the old ini file,I ended up with two and i was getting wierd things too. did you reload the contol box fimware ?