Mechanique
1 sub-album and 96 images in this album on 6 pages.
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Cutting in the dogs on the next batch of bottom bracket tap bodies using a two inch diameter shell endmill in my 1958 Bridgeport milling machine.  The tap bodies are held in a three jaw chuck on the super indexing spacer which allows the tap body to be rotated 180 degrees after the first milling pass is completed.
Cutting in the dogs on the next batch of bottom bracket tap bodies using a two inch diameter shell endmill in my 1958 Bridgeport milling machine. The tap bodies are held in a three jaw chuck on the super indexing spacer which allows the tap body to be rotated 180 degrees after the first milling pass is completed.
Viewed: 85 times.
Tapper bodies have moved from the lathe where a 20 degree chamfer was turned and are back on the Bridgeport milling machine for step no. 11 -milling the flats for the stainless steel handles.  The bodies are secured in the Super Indexing Spacer and a two inch diameter shell endmill is used to machine a 2mm deep x 40mm long flat.
Tapper bodies have moved from the lathe where a 20 degree chamfer was turned and are back on the Bridgeport milling machine for step no. 11 -milling the flats for the stainless steel handles. The bodies are secured in the Super Indexing Spacer and a two inch diameter shell endmill is used to machine a 2mm deep x 40mm long flat.
Viewed: 59 times.
A wider view of step no. 11.
A wider view of step no. 11.
Viewed: 62 times.
A vertical shot of my 1958 vintage Bridgeport milling machine.  Next year she turns 60!  My shop turns 70 in 2018 and I'll turn 72 years young at least in my mind.
A vertical shot of my 1958 vintage Bridgeport milling machine. Next year she turns 60! My shop turns 70 in 2018 and I'll turn 72 years young at least in my mind.
Viewed: 70 times.
BR41921 is the serial number of my trusty Bridgeport milling machine which corresponds to a manufacturing date of 1958.
BR41921 is the serial number of my trusty Bridgeport milling machine which corresponds to a manufacturing date of 1958.
Viewed: 77 times.
Tap bodies for the SILVA machine taps are in the final stage - 1/2-13 threading with the Vertex tapping head.  The body is held in the super indexing spacer, 27/64" tap drilled and then tapped.  Next off to Blackline for black oxide treatment.
Tap bodies for the SILVA machine taps are in the final stage - 1/2-13 threading with the Vertex tapping head. The body is held in the super indexing spacer, 27/64" tap drilled and then tapped. Next off to Blackline for black oxide treatment.
Viewed: 69 times.
48 and 50.8 brazed carbide mitre cutters back from Paul Brong Machine.  How to cut through heat treated cycle tube including Reynolds 953 with an ultimate tensile strength range 1750-2050 MPa (254,000 psi - 297,500 psi) in  approximately eleven seconds without a laser.  The hardness of 953 is so close to the hardness of HSS mitre cutters to preclude success.  These brazed carbide cutters are resharpenable and if fractured can be repaired - return to Strawberry.
48 and 50.8 brazed carbide mitre cutters back from Paul Brong Machine. How to cut through heat treated cycle tube including Reynolds 953 with an ultimate tensile strength range 1750-2050 MPa (254,000 psi - 297,500 psi) in approximately eleven seconds without a laser. The hardness of 953 is so close to the hardness of HSS mitre cutters to preclude success. These brazed carbide cutters are resharpenable and if fractured can be repaired - return to Strawberry.
Viewed: 127 times.
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