Making darts

[Terry LaneParticipant @terrylane]

Bullets made of any material can be a health hazard!

[TerrydParticipant @terryd72465]

Posted by Stub Mandrel on 26/11/2011 21:12:21:

Depleted urnium is highly toxic, especially in bullet form…

 

Depleted Uranium on Wikipedia

 

I have heard of a lecturer who had a lump as a paperweight. It would be ideal for ballast on my shunter project.

 

Neil

 

 

I thought all bullets were highly toxic?

 

ElTel

[TerrydParticipant @terryd72465]

Posted by Tel on 26/11/2011 08:20:10:

‘ang on there a minute Other Tel – ain’t 6mm 0BA?

 

 

Hi Tel,

 

You are quite right, It was simply another Alzheimer episode on my part, or perhaps just a typo, who knows?

 

 

Posted by Tel on 26/11/2011 09:59:20:
Neither of ’em will be obsolete while I can still become upright!

 

So you are in favour of both imperial and metric standards, in parallel? Sounds like a typical British mish-mash to me!

 

Best regards,

 

ElTel

 

 

[Ian S CParticipant @iansc]

Could you use brass, or stainless steel. make them hollow, fill them with lead? Ian S C

[Michael GilliganParticipant @michaelgilligan61133]

IanSC,

Presumably yes … but it’s more effective to start with the Tungsten mix [not strictly an alloy]; because its Specific Gravity is significantly higher than Lead.

A built-up construction would probably only weigh half that of the “Tungsten” one.

MichaelG.

[Sub MandrelParticipant @submandrel]

> I thought all bullets were highly toxic?

 

Obviously my latest feeble attempt at humour has failed!

 

Neil

[Steve WithnellParticipant @stevewithnell34426]

Has anyone tried turning these tungsten alloys on a chinese mini-lathe eg Sieg C3? I don’t have of this material so I can’t try it out. I do have some tungsten bar, but the answer as to the machinability of that is pretty obvious and isn’t helpful.

 

Steve

[alan frostParticipant @alanfrost17805]

Neil,

 

Death by bullet counts as death by “ingestion of a foreign substance” usually via the skin. This is what a lot of pop stars die of . The foreign substances are usually water (well known r.stones member ), lead (well known beatle ), drugs ( a very popular one ,this) , smoke (Steve McQueen ) ,earth (often selected by plane crash or car crash devotees ) ,Turkish coffee, genuine i.e.non- westernised Japanese food. ( any of it) . Oh genuine Mexican food if its folded wrongly can be lethal too.

 

Many pathologists would however agree that death by bullet is more serious than the others.

 

Keef Richards has tried most of the above along with Doctor John ,and has proved they are not necessarily fatal. In fact Keef may well be immortal, he certainly has the constitution of an Ox. Jerry Lee Lewis was for many years an official tester, both actively and passively.

 

Mark, thanks for asking original question. It has expanded my medical and machining knowledge and unearthed our last defender on the NW frontier : and I loved Stewart’s reminiscences.

 

Regards.

Edited By alan frost on 27/11/2011 18:12:52

Edited By alan frost on 27/11/2011 18:15:38

[Clive HartlandParticipant @clivehartland94829]

I at one time had to machine some Tungsten counter wieghts for balancing telescope attachments to telescopes that had a 360 deg. rotation.

I found them extremely tough! I used 3 fluted solid carbide cutters and they ‘Grunted’ a bit.

Luckily I only had two to do as it was hard work on the mill.

I set them up on a rotary table and they had to be machined in an arc to clear the projections they would travel over.

The cuts were very light and repetative to complete the job.

At that time this type of counterwieght was very common on theodolites to balance the wieght of the Distance Measuring device attached to the top of the telescope.

Now the EDM is incorporated into the telescope and counterbalances are no longer needed.

 

Clive

[Clive HartlandParticipant @clivehartland94829]

I at one time had to machine some Tungsten counter wieghts for balancing telescope attachments to telescopes that had a 360 deg. rotation.

I found them extremely tough! I used 3 fluted solid carbide cutters and they ‘Grunted’ a bit.

Luckily I only had two to do as it was hard work on the mill.

I set them up on a rotary table and they had to be machined in an arc to clear the projections they would travel over.

The cuts were very light and repetative to complete the job.

At that time this type of counterwieght was very common on theodolites to balance the wieght of the Distance Measuring device attached to the top of the telescope.

Now the EDM is incorporated into the telescope and counterbalances are no longer needed.

 

Clive

 

Why is it double posting?

Edited By Clive Hartland on 27/11/2011 19:23:16

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