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Percussion drill DY design Need help and ideas
Percussion drill DY design Need help and ideas
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Old 14th January 2011, 02:37 PM   #1
irenesg is offline irenesg
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Join Date: Jan 2011
Default Percussion drill DY design Need help and ideas

Here i try to build cheap Percussion driller for drilling 40m deep well.
i already bought 3000RP diesel engine (very old for $50).
i drafted here sample. my worry is it wont work i need at least 2m pull and free drop to drill.
please guys help me out with ideas thank you.
here attached the file
Click the image to open in full size.
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Old 14th January 2011, 03:23 PM   #2
BigE is offline BigE  Canada
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Location: Toronto
Make sure you've stepped down the gearing so that the rpm of the motor does not lift the cutting head prematurely.

You could decrease the drop and free-fall time by making the cutting tool heavier...
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Old 16th January 2011, 12:41 AM   #3
mickeymoose is offline mickeymoose  Canada
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Join Date: Nov 2008
2 Qs:
How do you intend to remove the loose material in the bore-hole and what happens if you hit bedrock? E
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