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  1. pavt

    OT - Why do metric bearings use inch balls?

    Because they sometimes have adequacy issues.
  2. pavt

    OT:- Its New Year, whos for losing some weight?

    I've added 3 new holes to my belt since October. The trick was to cut way back on the carbs and start doing this thing called "work". (I work in a rough, semi-outdoors heavy class 8 truck shop....) Its brutally physical at times. Not really counting calories, but keeping it down to ~2k or less...
  3. pavt

    Do heavier things fall faster than lighter objects ???

    No. Gravitational acceleration is constant. Galileo proved this between 1589 and 1592 in a series of experiments where he dropped different weights off the Leaning Tower of Pisa. Confusion arises because there might be different drag coefficients with the air: for example, a feather and a canon...
  4. pavt

    Alloy choice to match grade 8 bolts

    X2 on that, 4340 or 300M if you want to be expensive.
  5. pavt

    Whiners and know it alls

    I still can't figure out where I fit in. I'm a home gamer with all-American stuff, but I'm also a pro that does a bit of everything at my day job (heavy maint. shop, class 8 vehicles and cranes) Not a real "machinist", but I can do what I need. Not a certified welder, but I've done code work in...
  6. pavt

    Suggestions on Bringing Water Into New Shop

    I would go 1" PEX or PVC sch 80. 5 feet deep because of the frost line. Thru electrical easy bends as mentioned before.
  7. pavt

    My Radio Silence

    Well, I hope Limi sticks around, I need a few honest-to goodness Brits to teach me about Indian cuisine (very little of that in the US) and the finer points if the Industrial Revolution. Wishing you all the best, Sami!
  8. pavt

    My Radio Silence

    You could host a sporting event called the Super Bowel. Gordon can do the half-time show.
  9. pavt

    Is it just me or do drill bits suck now?

    I can back this up with my previous post, I bit the financial bullet and standardized on the Viking/Norseman brand in cobalt, split-point drills. Happy ever since, worth every penny.
  10. pavt

    Is it just me or do drill bits suck now?

    I think everyone on this site needs to become part of the rest of the world and call them drill bits. Because the material they are used in had ZERO to do with the fact that you still need to make a hole in something. And if you go to *any* supplier and ask to see their selection of drills, the...
  11. pavt

    Cutting gear teeth....I need the basics

    I can't find the link right now, but somewhere I had saved the websites for a few companies that make entire shafts with the gear teeth, just saw it off to length to get the width of gear that you need, but dammit I can't find it on my computer!!!!
  12. pavt

    Is it just me or do drill bits suck now?

    My employer buys in bulk from National Twist Drill. I bought my own (cobalt) from Norseman/Viking. They both perform better than Harbor Freight, and better than Binford Specials. There isn't anything radically new about twist drill manufacture that I'm aware of. I think it maybe just you. But...
  13. pavt

    Cutting gear teeth....I need the basics

    I do believe "module" is metric only, it is the metric way of calling gears and they tend to use whole numbers. That is an excellent book, BTW, I have read it a few times and it never gets old. If you don't feel like making your own, pre-made pinion shafting is a stock manufacturing item...
  14. pavt

    OFF TOPIC Weighted hem tarpaulins

    Is that what they call it nowadays? :nutter:
  15. pavt

    What kind of cast iron is a vise made of typically?

    Wow I didn't know they were still around -- thanks for the tip!
  16. pavt

    What kind of cast iron is a vise made of typically?

    My bench vise is cast steel. Spark test confirmed that. 1943 Prentiss Bulldog, if anyone is wondering. Has US Navy markings.
  17. pavt

    Free hobbing - a rogue method for spur gears

    You might be surprised. I've had coworkers like that, in person, in real life.
  18. pavt

    DC welder heating...why no luck?

    Thanks for the tip on the abrasive cord, I've never heard of it before. Are you sure you can't make a nut cheaper than $250? I bet you could.
  19. pavt

    WTF...a backplate costs almost as much as a chuck??

    Welcome to 2021. It sucks. :bawling: I don't even bother looking for back plates any more, instead I buy thick rounds of steel plate (offcuts, drop-offs) and make my own. Even with my time, it's still far cheaper.
  20. pavt

    DC welder heating...why no luck?

    That is just a weird, weird wear pattern. I would want to make a new nut, and then flip the screw end-for-end. (so you have a new wear surface) Then re-assemble and call it good.