Thread: Delrin drive nut (lee)
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17-02-2009 #11
Lee,
I don't suppose you can do 12mm x 3mm RH trapezoidal thread Delrin nuts, can you? I've had two goes now at making a tap from bits of lead screw, but both have been too soft to cut the bits of molybdenum filled Nylon I have - they end up twisting.
I also need a couple of 300mm lengths of 20mm round rail, four carriages and four support brackets, as I've decided to change the design of my Z axis.
Jeremy
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17-02-2009 #12
Sending you a PM now mate :)
.Me
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17-02-2009 #13
Thanks Lee.
Jeremy
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17-02-2009 #14
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25-02-2009 #15
Thanks for the parts, Lee. All arrived OK and look to be just the job!
Jeremy
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25-02-2009 #16
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03-04-2009 #17
Just to be clarify ....these delrin drive nuts, would allow me to connect my M8 threaded rod (lead screw), to my stepper motor shaft (which I think is 6.35mm - from recollection).
Would these need any modd'ing or are they ready to rock?
If so, could you please quote me for 3 of them (inc delivery - UK based )
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04-04-2009 #18
No they are used as nuts that run up and down your threaded rod, as the motor turns the threaded rod your axis table moves :).
.Me
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04-04-2009 #19
Now I'm confused.
the post is entitled Delrin Drive nut (& it was always my interpretation that a drive nut is like the pic you've just posted above!), but in post 5 on this same thread (ie back on page ), has this photo...
in that photo they look like couplers? (so the thread morphed a little & confused me!)
(original post - [ame="http://www.mycncuk.com/forums/showpost.php?p=2745&postcount=5"]MYCNCUK - View Single Post - Delrin drive nut (lee)[/ame] )
Do you still sell the pictured couplers as mentioned in the photo in 'post 5' of this thread for £7 each? (specifically M8 threaded rod to stepper shaft of 6.35mm diameter)
I reckon there's a good business op for someone to knock these couplers out at a reasonable 'pack of three' cost! (as all the couplers I've seen to date would mean if I bought them, it would result in more cost than the rest of my whole CNC build!)Last edited by HankMcSpank; 04-04-2009 at 09:36 PM.
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05-04-2009 #20
The thread is about drive nuts, but in post 5 he says "I also have some of these" above the couplers photo.
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