The Beginning of a New Project (1910 Singer 66 hand crank conversion)
12-04-2012, 07:22 AM
#21
Super Member
Join Date: Feb 2012
Posts: 8,091
Kittywolf13,
I haven't commented yet cos I've been playing with Rusty and his new hand crank.
Here is what I would try were I in your situation.
Since you have the new box get a piece of solid steel, "L" shaped, and cut it wide enough to be a strong support, but not wide enough to get in the way. Bolt it to the bottom and to the divider for stability. Bend it so that it runs right up next to the pillar of the machine with a tab at the top bent to keep it from bending inwards. Put a rubber cushion on that.
Drill a hole where the HC mounting bolt needs to be, then drill a smaller one above and below the mounting bolt hole to mount a small bolt or screw in to prevent the HC from pivoting. This is a substitute for the boss that's missing on your machine. Bolt the HC on and crank away.
Harder to describe than to do it.
Joe
I haven't commented yet cos I've been playing with Rusty and his new hand crank.
Here is what I would try were I in your situation.
Since you have the new box get a piece of solid steel, "L" shaped, and cut it wide enough to be a strong support, but not wide enough to get in the way. Bolt it to the bottom and to the divider for stability. Bend it so that it runs right up next to the pillar of the machine with a tab at the top bent to keep it from bending inwards. Put a rubber cushion on that.
Drill a hole where the HC mounting bolt needs to be, then drill a smaller one above and below the mounting bolt hole to mount a small bolt or screw in to prevent the HC from pivoting. This is a substitute for the boss that's missing on your machine. Bolt the HC on and crank away.
Harder to describe than to do it.
Joe
12-12-2012, 03:05 PM
#24
Banned
Join Date: Oct 2012
Location: San Lorenzo, CA
Posts: 5,361
Ok, I'm up for the challenge! Let's think through what would be the most useful and do-able design for a hand crank for Machines without motor bosses, that will work with the most amount of machines out there
Requirements:
Should have 3:1 gearing
Should mount to a portable case (or be able to be used WITH a portable case.
Should be SOLID
Should be reasonably priced
Possibilities:
Might be able to be made to work with solid hand wheels
Adjustable/changeable gearing would be a plus
Possibly reuse some existing crank (orig or modern) with adapter
Requirements:
Should have 3:1 gearing
Should mount to a portable case (or be able to be used WITH a portable case.
Should be SOLID
Should be reasonably priced
Possibilities:
Might be able to be made to work with solid hand wheels
Adjustable/changeable gearing would be a plus
Possibly reuse some existing crank (orig or modern) with adapter
Last edited by SteveH; 12-12-2012 at 03:18 PM.
12-12-2012, 03:13 PM
#25
Power Poster
Join Date: Mar 2011
Location: Somewhere
Posts: 15,506
Ok, I'm up for the challenge! Let's think through what would be the most useful and do-able design that will work with the most amount of machines out there
Requirements:
Should have 3:1 gearing
Should mount to a portable case (or be able to be used WITH a portable case.
Should be SOLID
Should be reasonably priced
Possibilities:
Might be able to be made to work with solid hand wheels
Adjustable/changeable gearing would be a plus
Possibly reuse some existing crank (orig or modern) with adapter
Requirements:
Should have 3:1 gearing
Should mount to a portable case (or be able to be used WITH a portable case.
Should be SOLID
Should be reasonably priced
Possibilities:
Might be able to be made to work with solid hand wheels
Adjustable/changeable gearing would be a plus
Possibly reuse some existing crank (orig or modern) with adapter
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