clarkshomestead
01-04-2008, 09:15 AM
I suppose some of you know what a pump drill is.
Step 1 You take a straight stick about 2 ft. long and a half inch wide for a spindle. In the top or smallest end of the spindle you drill a small hole straight through. Haft (attach by sawing a notch in the end of the spindle and tieing on securely with sinew, rawhide or twine)a point of bone, stone, metal or any other suitable material to the other end.
Step 2 You make a fly wheel from a wooden disc about three quarters of an inch thick with a diameter of about 6 inches. Drill a hole in the center of the fly wheel large enough that it will fit over the smallest end of the spindle and become very tightly wedged about 2" from the larger end.
Step 3 Now you need a piece of wood about 2" wide x 1" thick x 12" long. Drill a hole through the center of this board on the 2" face. Hole should be slightly larger than the thickest part of the spindle. Then drill 2 holes on the same face center of the board and a half inch from each end (quarter inch diameter holes).
Step 4 Put the flywheel on the spindle and make it tight. Put the board on above the flywheel. Tie a piece of cordage onto the board at one of the end holes. Pass the cord through the hole in the spindle and tie off to the hole on the other end of the board. Tie it at a length that will keep the board off the flywheel by about 2 inches.
Step 5 To use place the point on some wood, holding the spindle in place spin the board till the cord is wound around the spindle. Now put both hands on the board and pump down releasing pressure just before all of the string is unwound. A steady rythmic pumping action rotates the spindle back and forth there by drilling a hole in your wood.
Man! I thought that explanation would be shorter sorry!
Edited by admin to separate paragraphs to make reading easier.
Step 1 You take a straight stick about 2 ft. long and a half inch wide for a spindle. In the top or smallest end of the spindle you drill a small hole straight through. Haft (attach by sawing a notch in the end of the spindle and tieing on securely with sinew, rawhide or twine)a point of bone, stone, metal or any other suitable material to the other end.
Step 2 You make a fly wheel from a wooden disc about three quarters of an inch thick with a diameter of about 6 inches. Drill a hole in the center of the fly wheel large enough that it will fit over the smallest end of the spindle and become very tightly wedged about 2" from the larger end.
Step 3 Now you need a piece of wood about 2" wide x 1" thick x 12" long. Drill a hole through the center of this board on the 2" face. Hole should be slightly larger than the thickest part of the spindle. Then drill 2 holes on the same face center of the board and a half inch from each end (quarter inch diameter holes).
Step 4 Put the flywheel on the spindle and make it tight. Put the board on above the flywheel. Tie a piece of cordage onto the board at one of the end holes. Pass the cord through the hole in the spindle and tie off to the hole on the other end of the board. Tie it at a length that will keep the board off the flywheel by about 2 inches.
Step 5 To use place the point on some wood, holding the spindle in place spin the board till the cord is wound around the spindle. Now put both hands on the board and pump down releasing pressure just before all of the string is unwound. A steady rythmic pumping action rotates the spindle back and forth there by drilling a hole in your wood.
Man! I thought that explanation would be shorter sorry!
Edited by admin to separate paragraphs to make reading easier.