Been after one of those mould / bowl things for years.
Keep looking on eBay…..
Me tooFor manual lathes with a compound this makes the most sense... Easiest to calculate, and easiest to cut as well. I've had my compound set at 30 degrees permanently since I set it up lol
Anyone know a reference for internal thread straight infeed distances?
Not got a reference, but a bit of Pythagoras gets you 1.3mm as the depth on a 1.5 pitch 60° thread.
I agree, can't be bothered to mess aboutI never bother, have the compound along the bed and locked, never an issue with threads.
and use form tools for chamfering.
Browsing YT last night and I quite fancy having a go at this, he faced it with silicon bronzeI was given this Thor hammer the other day.
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Replacements heads are available, but can be a pain to fit.
So I brought this.
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That will help make new heads.
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Raiding my rubbish pile, had me some lead.( I had in total 6kg of lead)
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The copper is glued onto the head, to act as a mould,
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Melting the lead, the pot was bent to allow an easy pour.
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First head cast.
The shrinkage meant that the lead did not stick the copper.
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Finished.
A brass knob. The original just wound me up as it had a pointer on it, when there's nothing to point to.
These brackets got a mix of Chlorobenzotrifluoride, Ethylbenzene, Manganese ferrite ,Acetone and some other stuff.
Looks good, have you used that mix before? How does it last?These brackets got a mix of Chlorobenzotrifluoride, Ethylbenzene, Manganese ferrite ,Acetone and some other stuff.
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