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  1. This is a question, not a suggestion. Using WEDM,...

    This is a question, not a suggestion. Using WEDM, leave three points connected and do this with as many passes as needed:

    https://pbase.com/d_a_v_i_d/image/171634749.png
    ...
  2. Replies
    4
    Views
    368

    Factory Whistle, In 1959, the Eclipse Counterbore...

    Factory Whistle, In 1959, the Eclipse Counterbore Company was...
  3. Thread: Saw upgrade

    by David_M
    Replies
    16
    Views
    1,053

    Do your Lennox blades have carbide teeth? Are you...

    Do your Lennox blades have carbide teeth? Are you running the saw close to 328 surface feet per minute, already?
    Have you tried an amp meter on the five-horsepower motor to see how much reserve you...
  4. Here is an inline thermal fuse (from ebay;...

    Here is an inline thermal fuse (from ebay; $30.00). 1768 degree melting point. Put it between the power coming into the oven and the nichrome heating element.
    ...
  5. Fusible link/Thermal fuse used as an additional...

    Fusible link/Thermal fuse used as an additional failsafe.
  6. What about a real NSK right-angle head? This...

    What about a real NSK right-angle head?

    This is a video showing one attached to a Lyndex-Nikken tool:

    Lyndex-Nikken - Modular Angle Head Demo With NSK Adaptor - YouTube
  7. My first Dentist had a belt-driven drill: ...

    My first Dentist had a belt-driven drill:

    https://pbase.com/d_a_v_i_d/image/171577195.png

    What about a belt drive for the horses that looks somewhat like this:...
  8. Replies
    14
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    785

    11-tooth stub on a 12-tooth-stub blank: ...

    11-tooth stub on a 12-tooth-stub blank:

    https://pbase.com/d_a_v_i_d/image/171559154.png
    12-tooth standard stub:

    https://pbase.com/image/171559189.png
  9. Replies
    14
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    785

    Measure distance between x (more is better)...

    Measure distance between x (more is better) number of teeth divided by x on the rack to get the circular pitch. Depth of teeth to find out if you are looking at a stub tooth and pressure angle since...
  10. Replies
    15
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    754

    I was talking about just the Collis stuff on the...

    I was talking about just the Collis stuff on the list I linked to.

    I looked at my stuff and this is what I have:

    13/16 / M20 on compound and 3/4 in tailstock. And they are different....
  11. Replies
    15
    Views
    754

    What's available from Collis (not including...

    What's available from Collis (not including specials):

    Tool Holders, Mill Holders, Collets: Collis Toolholder Iowa

    It seems odd that the M20 can't be had in 4MT.
  12. Replies
    15
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    754

    COLLIS #70401 3/4" to MT4 Heavy Duty Tap Driver ...

    COLLIS #70401 3/4" to MT4 Heavy Duty Tap Driver | eBay

    COLLIS #74452 3/4" Tap Size to MT4 Split Sleeve Tap Driver | eBay

    3/4" shank and square are supposed to be the same as M20 (according...
  13. Cartoon of miter gears in motion: ...

    Cartoon of miter gears in motion:


    https://youtu.be/kcCvGxdeMtQ
  14. The stuff I posted in post #62 is wrong and my...

    The stuff I posted in post #62 is wrong and my response to Marcus in post #65 Is wrong too. Sorry for the misinformation.

    I tried doing some bevel gears on paper with a 90 degree included angles...
  15. What is drawn would be bound up. It could only...

    What is drawn would be bound up. It could only have suspension travel by having a component flex in a way that would cause cracking, in my opinion.
  16. dian, The material is 1.3344 heat treated to...

    dian,

    The material is 1.3344 heat treated to 60rc. See below, then look at post #53.

    https://pbase.com/d_a_v_i_d/image/171521723.png
  17. Thread: OT: Ever Given

    by David_M
    Replies
    178
    Views
    11,269

    **For release this Thursday** The owners of...

    **For release this Thursday**

    The owners of Ever Given are setting up a Go Fund Me account to help defray the costs incurred during the ship's recovery and upcoming repair.

    More details and an...
  18. Thread: OT: Ever Given

    by David_M
    Replies
    178
    Views
    11,269

    No Fs Ever Given

    Tug Far Samson has a continuous bollard pull of 423 tonnes. 47,627 BHP.

    I saw where one engineer estimated that it would take 33,000 tonnes of pulling force to free the ship.
  19. Back to 45 degree pitch angle gear to show how...

    Back to 45 degree pitch angle gear to show how the grinding wheel could clear. This is just my imagination working. I am most likely wrong about this.
    ...
  20. For them to be called miter gears (miter gears...

    For them to be called miter gears (miter gears are always same tooth count and have 45 degree pitch-cone angles as you stated), that's true. It's allowed (just call them bevel gears, now) and it...
  21. You can also change the bevel-gear angle and its...

    You can also change the bevel-gear angle and its mate to clear the pilot.
    https://pbase.com/d_a_v_i_d/image/171519945.png
  22. Yes, they are:...

    Yes, they are:
    https://pbase.com/d_a_v_i_d/image/171515723.png
    https://pbase.com/d_a_v_i_d/image/171515724.png
    Nitriding?
  23. Nice. I00w at 230v English link: PROXXON -...

    Nice.

    I00w at 230v

    English link: PROXXON - LHW
  24. Think about having the Dentist change how he...

    Think about having the Dentist change how he operates the drill. If he keeps the drill running under full load for an extended period, a grease free channel is created where there needs to be...
  25. Maybe pneumatics and an inline lubricator using a...

    Maybe pneumatics and an inline lubricator using a food grade oil (castor oil?) if it can be exhausted to the outside. Also DLC coating on the gears.

    I like your idea of using tiny ports possibly...
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