Need Help!- Weird sized coupling needed - Aus

[guerd87]

Hi everyone,

I was looking to order something like the Dumpster couplers for my machine. Only problem is they are not large enough for what I need.

I need to connect 1/2" 6TPI Acme to a Nema34 Shaft (14mm)

I could possibly get the thread lathed down to 10mm so I would only need a 14mm-10mm coupler, but I cant find anything like this either. Anyone have any ideas? (I dont want to get custom machined ones as they will be heaps expensive)

I was thinking I could just connect the 2 with tubes and clamps and then make my own version of a lovejoy on the machine once its running - Last resort really

Cheers
John

Edit: I know Mcmaster have them, but they dont ship to Aus

[gully]

Hi John
You can get those size lovejoy coupler parts from the Hubbard CNC ebay store
http://myworld.ebay.com.au/carolbrent/ just go to the store and look through their lovejoy couplers. they sell each half seperatly so you can make it to suit.
I have just purchased some through them and they were great to deal with

Gully

[guerd87]

Perfect! Thank you very much

I was not aware that all Lovejoy couplers mate with each other, makes the range very good

They have 10mm, 14mm and spiders in stock for $14 per axis

One question: Will I need to machine my 1/2" Acme thread smooth down to 10mm to get the coupler to fit on, or will a standard 1/2" lovejoy clamp onto the thread with a simple flat ground onto it?

[gully]

Originally Posted by guerd87 Perfect! Thank you very much I was not aware that all Lovejoy couplers mate with each other, makes the range very good They have 10mm, 14mm and spiders in stock for $14 per axis One question: Will I need to machine my 1/2" Acme thread smooth down to 10mm to get the coupler to fit on, or will a standard 1/2" lovejoy clamp onto the thread with a simple flat ground onto it?

My lovejoy's turned up today, (Im going from 5/8 to 1/4). The 5/8 is nice and tight on my leadscrew and with the grubscrew done up onto the thread even without a flat spot it aint going anywhere in a hurry

Gully