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Type: Posts; User: MattiJ

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  1. Replies
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    547

    ENGINEERING.com | Beam Deflection Calculators...

    ENGINEERING.com | Beam Deflection Calculators
    Structural Beam Deflection and Stress Calculators
  2. Replies
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    2,411

    1 million revolutions, 10% failure rate is the...

    1 million revolutions, 10% failure rate is the baseline.
    Oversizing has very profound effect as failure rate goes up on third power of load. Running the bearings at 25% of rated load gives 64 times...
  3. "that is barely a scratch" :D 24% VAT in here,...

    "that is barely a scratch" :D
    24% VAT in here, Denmark and Sweden 25%
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    1,615

    Main competitor for sharp HSS in my "shop" is...

    Main competitor for sharp HSS in my "shop" is sharp carbide inserts 10 usd per box of ten
    Or sharp cheap-o WNMG alu inserts 15 usd per box, giving me 60 cutting edges at 25 cents per edge. Can't...
  5. Add Kemmler to your list: Collet chuck SK...

    Add Kemmler to your list:
    Collet chuck SK 40-2/20-50 ER32 DIN 2080 | ISO 40 | Collet chucks ER | DIN 2080 | Kemmler Prazisionswerkzeuge
  6. Not UK member but: APT has around here reputation...

    Not UK member but: APT has around here reputation for reasonably priced & usable quality for hobby*/small shop use.

    *digger doug should arrive any minute to tell you about the discussion...
  7. Replies
    52
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    2,930

    Cordless tool batteries are usually easy to open...

    Cordless tool batteries are usually easy to open up unlike laptop batteries. For example Makita opens up with torx screwdriver.
    Internals are usually lot more complicated than fuse, usually sort of...
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    723

    Makes no sense in this case. And (gas)pipe thread...

    Makes no sense in this case. And (gas)pipe thread is usually abbreviated with single "G"
    And Gg would be according to some sources some funny earth drilling equipment thread. "kegeliges...
  9. You need 7018 hot glue for that.

    You need 7018 hot glue for that.
  10. Replies
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    Links=left handed Withtworth 14mm diameter 10tpi...

    Links=left handed
    Withtworth 14mm diameter 10tpi bastard thread?
  11. Replies
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    2,930

    Contrary to common beliefs totally discharging...

    Contrary to common beliefs totally discharging nicad and especially nimh before charging them is bad for them. Weakest cell discharges to zero volts and after that reverses polarity and it kills...
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    2,930

    FYI: Dewalt 20v battery is actually same voltage...

    FYI: Dewalt 20v battery is actually same voltage as 18v makita and milwaukee batteries. Just cheap marketing trick from Dewalt, they quote maximum battery voltage and others quote average voltage...
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    2,930

    Milwaukees M12 and M18 lines seem to be pretty...

    Milwaukees M12 and M18 lines seem to be pretty good value for money with ample of options. Makita and Milwaukee seem to be the most common "professional" cordless tools around here. Some Bosch around...
  14. Replies
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    1,029

    Maybe I figured out the misunderstanding. You...

    Maybe I figured out the misunderstanding.

    You are probably thinking of placing the diode parallel to switch contacts. (not working or at least there is good risk of toasting the diode with high...
  15. Replies
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    1,029

    No surprise there, can't use parallel diode with...

    No surprise there, can't use parallel diode with motor if you want to reverse the motor direction. But again this was garden tractor clutch, not autopilot motor nor fuel injector.
  16. Replies
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    1,029

    Diode clamps the reverse voltage spike to less...

    Diode clamps the reverse voltage spike to less than 1 volt when the contacts open and there is not going to be any sparking.

    Capacitor has been used traditionally in ignition points either because...
  17. Replies
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    1,029

    Shouldn't really matter in this application. ...

    Shouldn't really matter in this application.
    Makes difference if you need really fast action like fuel injectors or reed relays switching in millisecond range but not much issue in garden tractor...
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    spray some lube like wd-40 to screws, "tighten"...

    spray some lube like wd-40 to screws, "tighten" to get most of thread to "tool side" and lop off the screws with angle grinder. No need to dick around with them if they are already badly mushroomed.
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    AFAIK "furnace brazed" is yet different type of...

    AFAIK "furnace brazed" is yet different type of grinding wheel and it has some actual "meat" for trueing.

    From thinner to thicker:
    Electroplated
    Brazed
    Resin bonded
  20. I can only imagine if you would have said that...

    I can only imagine if you would have said that you bought 200$ HF TC grinder and had 0.001" oversize spindles... :D
    "Why didn't you buy a proper tool like Baldor instead of chinese shit" .. "Totally...
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    Not much material left for truing if corners are...

    Not much material left for truing if corners are already "gone" on plated wheel.
  22. Tough crowd here, either its too much hobby grade...

    Tough crowd here, either its too much hobby grade question or bizniz secrets.

    What we have left is Viagra and boats :D
  23. Historical reasons are the biggest single...

    Historical reasons are the biggest single motivation for 50 or 60hz.
    Germany was seriously considering switching to 400hz after the WW2 as lots of the infrastructure needed to be rebuilt anyways.
    ...
  24. Did digger doug just hack into Bob's account or...

    Did digger doug just hack into Bob's account or what? :D
  25. Old news: Ford bringing back buttons after...

    Old news:
    Ford bringing back buttons after touchscreen distraction fears - SlashGear

    2-Second Rule for Distracted Driving Can Mean Life or Death - The New York Times
    IRRC the NHTSA...
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