Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: gaz. on February 10, 2010, 01:51:27 PM
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Hello,
I am in need of some help. I needed to purchase a new lead screw 500mm long, so i bought one and its the whong bloody tpi. I need an 11tip one and i bought a 9tpi one. I have searched all over google for one but to no avail.
I need this asap aswel because orders are backing up with no machine :(. So anybody know where i can get one, it needs to be 11tpi and 12mm thick.
Thank you in advance!
u.k btw.
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Why do you have to have a 11tpi, you can fit the 9 tpi and just change the 'steps per' in mach3 config and be up and running in no time.
Graham
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but i have all the nuts etc fit on the machine for the 11tpi and the other 2 axis are running on 11tpi. Could i just change the 1 axis to 9tpi and leave the others on 11?
If not where is the best place to get nuts, lead screws etc.
cheers
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Yes, just change the one, it makes no difference to the software, you just calibrate it as 9tpi for that axis.
Graham
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im abit lost on how to change the tpi settings, im on config> motor turning...no idea what to do now ???
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If you were to change one leadscrew from 11 pitch to 9 pitch then, what I would do is:-
In Motor Tuning take your existing 'Steps per' value (select the required axis first) and multiply it by 11. This would give you an arbitrary value which you then divide by 9 the result being the new value to use for 'Steps per'.
Tweakie.
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Thankyou for all helping me, i really appreciate it. 8)