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  1. Johnwa

    Sand blasting? Bead blasting?

    The same thing on alibaba is $15000 https://www.alibaba.com/product-detail/Factory-Price-Metal-Rust-Removal-100W_60774607033.html?spm=a2700.7724857.normalList.91.36d066af0wtBba Too bad. Sent from my iPad using Tapatalk
  2. Johnwa

    Sand blasting? Bead blasting?

    John You needed one of these. Seems too good to be true. https://tooonelyone.com/products/ggboom23
  3. Johnwa

    1st Milling Machine......which

    I’ve often wondered why the OEM didn’t incorporate a triangular gib in the RF-45, or whether it is possible to add one. A large mill would be required to cut an accurate slot in the column, the cost might be prohibitive but it is a pretty simple cut. A similar slot would need to be broached in...
  4. Johnwa

    Allen wrenches (aka hex keys)

    I bought duplicate metric and imperial sets from PA so I could have sets in the shop and in the basement. Nice bright orange handles but I still managed to misplace a 4.5mm one. SIGH
  5. Johnwa

    Shop Built Steady Rest

    I found this post on practical machinist. It includes a sectional drawing of the finger assembly for a South Bend. It’s a little different than Brian’s but the concept is the same. “For what it's worth... Here's a cross-section I did of the jaw assembly for a 9" telescoping steady: It's an...
  6. Johnwa

    Shop Built Steady Rest

    That looks really good! In Addison to Tom’s questions, how did you manage to get the fingers to line up properly? Did you pre-machine the round parts or did you do that after they were welded?
  7. Johnwa

    Mini Mill DRSs

    I’ve only used the bolt circle and the divide by 2. With divide by 2 you can touch off each side and then move to the Center. Anything else will require interpreting the chinglish manual and trial and error.
  8. Johnwa

    Mini Mill DRSs

    if I understand what you mean by independent vs integrated then the one advantage of an integrated DRO is that it is easy to do bolt circles.
  9. Johnwa

    Group Sourcing Metal Ideas

    I’ve got the same setup. I’ve never timed it but I don’t think it should take anywhere near that long. You might want to check your speed and pressure adjustment Ok, I went out a cut a piece of 1”x3/4”. It took 40 seconds. I’m running mine on the middle pulleys.
  10. Johnwa

    Small generator project

    I wish my projects came out half as good as this one.
  11. Johnwa

    Light bracket

    Another way is to use the holesaw to cut a 4 ½” hole in a piece of ½-¾” plywood and clamp that to the metal. Use the 4 ½ hole to guide the saw.
  12. Johnwa

    4x6 bandsaw $50

    I found a good thread on copper friendly lubes. https://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2554764 GL-4 appears to be the answer.
  13. Johnwa

    4x6 bandsaw $50

    I have some of that to but less than 10years old Some of the additives in gear oil can dissolve copper alloys. My worm wheel is brass or bronze so I’m not sure whether this is safe or not.
  14. Johnwa

    4x6 bandsaw $50

    Grizzly recommends a grease for their similar sized saw. https://cdn0.grizzly.com/manuals/g0622_m.pdf Mobilux EP 2 Moly My busybee saw has a bronze worm wheel and uses oil. Sent from my iPad using Tapatalk
  15. Johnwa

    4x6 bandsaw $50

    I have a bigger table as well. I can leave the 2x2 in place and still do a horizontal cut. The table only has to support your workpiece right at the saw teeth anyway. It might be different if you’re using a narrow blade and cutting curves.
  16. Johnwa

    4x6 bandsaw $50

    PS There is a good video somewhere on YouTube that shows how to adjust the guides so it cuts square. Sent from my iPad using Tapatalk
  17. Johnwa

    4x6 bandsaw $50

    I think you will like it. I made a very small table maybe 2”x2” that I leave attached for when I use it vertically. Sent from my iPad using Tapatalk
  18. Johnwa

    4x6 bandsaw $50

    https://www.kijiji.ca/v-power-tool/calgary/misc-:-commercial-charger-metal-bandsaw-loading-ramp/1426450782?enableSearchNavigationFlag=true
  19. Johnwa

    Internal and external gear tooth profiles

    No, the flycutter is the same shape as the space between the teeth. It has a concave shape while the teeth are convex. There’s some diagrams on this page that illustrate the differences. https://khkgears.net/new/gear_knowledge/gear_technical_reference/calculation_gear_dimensions.html Sent...
  20. Johnwa

    Internal and external gear tooth profiles

    I’m pretty sure the answer is no. I think that the shape of the internal broach has to be the same as the external gear “tooth”. The flycutter cuts the spaces between the external teeth