Mark Goddard has been in constant pain since he was involved in a motorbike crash 16 years ago.
But after an unsuccessful two-year campaign to have his nerve shattered hand surgically removed, he decided to do it himself.
He rigged up a home-made guillotine using an axe with a weight strapped to it, to ensure it would have enough power to amputate his hand.
The first blow sliced though the bone but didn't sever all the tendons, leaving his hand hanging off a bloodied stump.
He then used a surgeon's scalpel to cut through the remaining tissues before dropping the remains into a bin, which he later filled with charcoal and set alight – in order to prevent his hand being re-attached.
Now the 44-year-old dad has issued an end-of-year deadline for doctors to amputate the rest of his arm from above the elbow - or else he will repeat the same drastic action.
Mr Goddard, from Newton Abbot in Devon, said today he says he was driven to the astonishing act after a 'put me out of my misery' ultimatum fell on deaf ears.
He said: “I should not have to go to such extremes to get my pain stopped.
“There was an alternative - and that was having it done properly in hospital. But no one would do anything to help me - so I did it myself.
“There should never have been any need for me to do this. It would have spared so much distress all round - but it was the only way.
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