My machine shop's primary
tool
is a 7 x 12 Chinese lathe imported by Micro-Mark.
The company has
a great selection of precision quality tools especially considering their
smallish size, which generally infers either poor quality or toy status -
definitely not the case with these tools. Sadly the Chinese lathe could be better quality, but in this size range, there is
little else except the English Myford, which is almost unobtainable due to high cost.
Prior to the Chinese (Sieg) lathe I had a Sakai lathe.
Sadly Sakai abruptly existed the market orphaning their
product. For those orphan owners in need
here is a PDF of the
Sakai manual.
In addition
there is a Sherline
vertical milling machine and other small power tools.
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Model engines
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Sherline Mill on homemade lazy susan. The lazy susan helps me access the machine for setup.
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Chinesse lathe. Note access for wheelchair under bench.
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Another work area with wheelcahir access.
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Models I have made from casting.
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PM Research dynmo from casting.
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Stuart Turner steam engine made from castings.
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Hot or miss engine based on Sears economy.
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More displays and misc junk
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DRO modification on Sakai lathe
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Modifyed handwheels for DRO
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Sakai lathe now replaced with Chinese lathe
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Completed DRO retrofit
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Small hand tools
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Staurt Turner engine I made from casting
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Tach for DRO
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The manual for Old Model Company OMC-5 motor.
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The little bits - neatly packed in numbered bags by build step.
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The walnut base overlayed with a copy of the hole template spray adhesived to the base. The red X just kept me from re-drilling the smaller holes..
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The base with the holes completed.
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The base with the coil mounts installed. The instructions suggest mounting the coils after the base but I will reverse that sequence.
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The base with mounts and coils.
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Flywheels with the 4 ferris bits forming the armature.
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Another view of the flywheel.
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More bits installed.
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The contacter points - assembeled (more photos later) they switch power to the coils which attract the ferris bits. Operated by a 4-sided cam.
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The main power switch - the little little bits.
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The motor mocked up - a few parts need to be test fitted - then disassemble for paint and fiinal finishing, though many of the bits are well finshed.
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Placing the contactor bracket onto the base. Precision drilling the holes made very clear at this step. Better done out of seq before cams on shaft.
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Contact assembly located and fastened to bracket with machine screws.
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Contact assembly installed onto bracket with slotted machine screws. Insulator not placed at this mock-up stage, needed during final assembly.
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Prototype assembly completed - about 2 hours or so, now will reflect on color of paint and breakdown for final finishing steps. Don't know when...
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Now will reflect on choice of color for paint and breakdown for final finishing steps.
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Side view of mocked up assembly. Somthing less than 2 hours time at this point. As a guess a good father (or mom) son project age 11-12 or so.
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The remaining little bits.
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By the mid 1800’s several versions of this arrangement had been tried and the OMC-5 Revolving Armature Engine is an such an example.
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