Clarke CL500M half nut conversion

[Danni BurnsParticipant @danniburns84841]

Hi guys

Can you please tell me how you split your half-nut PB block?

cheers

[Stuart Cox 3Participant @stuartcox3]

Posted by Danni Burns on 30/05/2021 14:00:06:

Hi guys

Can you please tell me how you split your half-nut PB block?

cheers

[Danni BurnsParticipant @danniburns84841]

Stu

It say 'I then cut the half nut in two'.

[john halfpennyParticipant @johnhalfpenny52803]

Hacksaw Danni. JH

[Stuart Cox 3Participant @stuartcox3]

Sorry Danni, I didn't read your question properly. Like John said a hacksaw or if you have the luxury of a bandsaw even better. Don't worry too much as the two halves should fit together however you cut them and you need a gap in between the two halves.

Stu

[Danni BurnsParticipant @danniburns84841]

Hi John/Stu

I dont have the luxury of saw. I dont even have the luxury of a 2"x2"x2" lump of PB yet (which is circa £45 – any ideas on getting a cheaper lump much appreciated)

I was thinking whether to saw and clean-up. Then was thinking about slitter-saw, but worried about gap.

That lead me to thinking whether I should cut first and drill/tap afterwards (thus providing the possibility of using smaller pieces of PB).

That then led me to wondering if a gap was required.

So in your humble opinions, would you advise against splitting first; and what would be the optimum gap (as in either case, this could always be skimmed last should you now consider with hindsight that a bigger/smaller gap is preferred)?

cheers

[Stuart Cox 3Participant @stuartcox3]

I got a piece of 1 1/2" x 1 1/2" x 100mm brass off ebay for £20. Enough to make 2 nuts if need be!

I would definitely cut the thread first before splitting the nut, no chance of the two halves moving while drilling and tapping. Just the width of the saw blade should give enough gap for adjustment as the nut wears over time.

Stu

[Danni BurnsParticipant @danniburns84841]

Thanks stu

I'm paying visit to scrap merchant this week so will take cutting lists with me to do few jobs .

on another note, ive noticed that I need to remove an angle iron type lead screw guard in order to install a dti clamp.

Did your machine have One of these lead?

[Stuart Cox 3Participant @stuartcox3]

No, whoever had the lathe before me had removed the lead screw cover

[Danni BurnsParticipant @danniburns84841]

Hi all

Im looking for a TR20 x 2 Trapezoidal Metric HSS Left Hand Thread Tap

Anyone got used to sell?

cheers

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