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Thread: Ratchet Cog's
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15th Feb 2020, 10:10 AM #1
Ratchet Cog's
Got asked by Sue's friend to replace 2 poorly made ratchet cogs off a table loom these had been made from old chopping board material one had lost 3 teeth.
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Got some 6061 bar stock
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Drew up new cogs with 18 teeth machine blanks to size. Each cog had a slight .5mm rise to keep the cog away from the frame of the loom so it will not ware or rub against.
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Made an arbour to mount the 2 cogs on simultaneously cutting each in opposite directions when mounted, the flat faces together. Using 60^ cutter at depth of 3mm x 10mm into the quadrant to form the ratchet.
Not bad for my first milling job, just need to double check everything in future is tight before & during.
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15th Feb 2020, 11:01 AM #2Most Valued Member
- Join Date
- May 2011
- Location
- Murray Bridge S Aust.
- Age
- 71
- Posts
- 5,959
Great work Ray. Only problem is that the part is so strong, what will she break next.
KrynTo grow old is mandatory, growing up is optional.
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15th Feb 2020, 03:01 PM #3
Kryn she had not used it at all it was a recent acquisition and being an 8 shaft well worth the trouble to have a new one made. Besides the lady looks after me with sales to the spinners group and sometimes brings or send cakes home with Sue This job was $$ tho no cakes.
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