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**Updated Oct 27th** DIY forge & belt grinder for knife making newb ** First quench video inside**

Discussion in 'Homesteading' started by Zbizzle911, Oct 15, 2019.

  1. Zbizzle911

    Zbizzle911 Charter Freedom Lover Charter Member Supporting Member

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    So I’ve decided to try my hand at knife making. I wanted a forge and belt grinder. Saw plenty of videos of people making them so here’s my take on it. The forge I loosely followed the essential craftsman on YouTube plans . I’m still waiting on my burner for it. This thread will be where I post my progress on these projects.

    [​IMG][​IMG]




    For the grinder I’ve got a treadmill motor and ordered the stuff to make the variable speed control and will have to fab the rest. More updates at they come.


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    Last edited: Oct 15, 2019
  2. Brian K

    Brian K Resident Douchenozzle Charter Member Supporting Member

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    Where'd you get the LWFB and how expensive was it?
     
  3. Zbizzle911

    Zbizzle911 Charter Freedom Lover Charter Member Supporting Member

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    eBay. I got 8 bricks for $60 shipped. Only problem is three came in broke. Didn’t open package until today so I’m going to email seller and see if they’ll do anything. Couldn’t find anyone local who had them. If someone knows a place in triad let me know.

    Edited to add that the seller is sending me 3 more bricks at no charge. I would still like to find a localish place to buy them for future upgrades.


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    Last edited: Oct 15, 2019
  4. Brian K

    Brian K Resident Douchenozzle Charter Member Supporting Member

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    Dang. 6-7 bucks per brick. I need that price to be closer to $1/ea.

    I seem to remember a pottery supply place in Ashville that sold them. I'll see if I can find them again.
     
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  5. Zbizzle911

    Zbizzle911 Charter Freedom Lover Charter Member Supporting Member

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    If you do please let me know. These are the k23 bricks


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  6. Zbizzle911

    Zbizzle911 Charter Freedom Lover Charter Member Supporting Member

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    So today had a bit of free time. I wired up the treadmill motor that I got for free to the bridge rectifier $9 ( https://www.amazon.com/gp/product/B07S4D5WSZ/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 ) and the SCR controller $14 ( https://www.amazon.com/gp/product/B00MKU4W3Y/ref=ppx_yo_dt_b_asin_title_o00_s01?ie=UTF8&psc=1 ) and what do you know it works just fine. Now to build the stand and order the wheels for the grinder. So far I've got less than $25 in the belt grinder! Below is a video I made of it working.



     
    Last edited: Oct 16, 2019
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  7. Brian K

    Brian K Resident Douchenozzle Charter Member Supporting Member

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    Highwater Clays, Inc. Main Store
    600 Riverside Drive
    Asheville, NC 28801


    upload_2019-10-16_14-49-30.png upload_2019-10-16_14-49-30.png
     
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  8. Zbizzle911

    Zbizzle911 Charter Freedom Lover Charter Member Supporting Member

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  9. Zbizzle911

    Zbizzle911 Charter Freedom Lover Charter Member Supporting Member

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    [​IMG]

    Roughed this out today. It is 1095. Copied a knife I already have for the template. Drilled the holes first and then used the angle grinder to rough out my the shape. Then hit it with a bastard file to smooth it out a bit.


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  10. Zbizzle911

    Zbizzle911 Charter Freedom Lover Charter Member Supporting Member

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    Got my burner put in today and after messing around with the regulator got it fired up for the first time. It seems to heat pretty well. I put a piece of round stock in it and it was cherry red in these than 5 minutes. Had Zbizzle911 jr video me lighting it for the first time.




     
  11. fieldgrade

    fieldgrade Well-Known Member Benefactor Charter Life Member

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    In case you have to buy more, I bought firebrick for $2 each at the local stone yard in Fuquay. I think they were $2.50 ea at the big yard in south Durham on 55.

    4x9 2” thick
     
    Last edited: Oct 22, 2019
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  12. B00ger

    B00ger Das B00G Charter Member Supporting Member

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    I have nothing productive to add other than I am very impressed. I have always wanted to get into knife making, but have let life get in the way. I look forward to seeing the progress as you hone your skills!
     
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  13. Jeppo

    Jeppo Very LARGE Member Supporting Member

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    How much weight have you lost? o_O
     
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  14. Carolinatlc

    Carolinatlc Member Charter Member Supporting Member

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    There is a company, Resco Products in Greensboro that makes refractory products. I'll probably be by there in the next couple weeks and see what they do with seconds or scraps. Wouldn't surprise me if I can get some bricks from them if anyone would like them.
     
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  15. Zbizzle911

    Zbizzle911 Charter Freedom Lover Charter Member Supporting Member

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    These have to be the lightweight kiln bricks, they're different than the ones put in fireplaces. Almost feel like styrofoam.

    Thanks buddy.

    Almost 40lbs crazy huh?

    That would be awesome @Brian K was looking also
     
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  16. fieldgrade

    fieldgrade Well-Known Member Benefactor Charter Life Member

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    I figured it was apples/oranges
     
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  17. Zbizzle911

    Zbizzle911 Charter Freedom Lover Charter Member Supporting Member

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    I wish those would work. Much easier to get and cheaper.
     
  18. bigfelipe

    bigfelipe Phil-osopher... Charter Life Member

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    Why wouldn't firebrick work?
     
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  19. Zbizzle911

    Zbizzle911 Charter Freedom Lover Charter Member Supporting Member

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    The regular off white colored fire brick that are used for fireplaces and such are very dense like regular bricks. The light weight ones are super light and remind you of styrofoam. They are made by mixing this stuff with organic matter then firing them which burns the organic matter away leaving a bunch of air pockets which is what keeps the heat in. I let my forge burn for 20 minutes at full blast and could put my hand on top of the bricks and they were barely warm. They are great insulators. I guess the regulars would work fair but not as well as the lightweight ones. It would take longer to heat up and thus use more fuel and might not reflect as much heat back into the forge so it wouldn't be as efficient.
     
    Last edited: Oct 22, 2019
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  20. NKD

    NKD Senior Member Benefactor Kimberless Supporting Member

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  21. NKD

    NKD Senior Member Benefactor Kimberless Supporting Member

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    Is there a dude anywhere in the world who wouldn't want to make a knife?

    Not including that Trudeiua blackface overly feminine dork or that Beta democrat guy.
     
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  22. bigfelipe

    bigfelipe Phil-osopher... Charter Life Member

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    You lived close enough to Berkeley to know the answer to that question...
     
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  23. NKD

    NKD Senior Member Benefactor Kimberless Supporting Member

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    I don't consider any of those people "dudes".

    You have to travel a couple miles into deep Oakland before men appear.
     
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  24. Zbizzle911

    Zbizzle911 Charter Freedom Lover Charter Member Supporting Member

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    So I put the bevels in today with a file and I know why its called a bastard file now. Heres the video of my first ever quench. The edge skates a chainsaw file so I guess its on to tempering.
     
  25. Zbizzle911

    Zbizzle911 Charter Freedom Lover Charter Member Supporting Member

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    Here’s a couple still pics from tonight. First is the quenched blade second is thermal cycling it.

    [​IMG]
    [​IMG]


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    Last edited: Oct 26, 2019
  26. J R Green

    J R Green Member Charter Life Member

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    Nice. One thing though, I'm against stirring the blade in the quench. That steel is as pliable as spaghetti when it's hot and stirring or even quenching it at an angle can cause warpage. I go straight down and hold it still.
     
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  27. Zbizzle911

    Zbizzle911 Charter Freedom Lover Charter Member Supporting Member

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    I wasn't stiring it. I was moving straight forward and back no side force just forward and back.
     
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  28. Zbizzle911

    Zbizzle911 Charter Freedom Lover Charter Member Supporting Member

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    Got my scales shaped and glued up. Used orange white and black g10 with black micarta pins. Now to let the epoxy cure and finish it up.

    [​IMG][​IMG]


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  29. Average Joe

    Average Joe Just A Everyday Joe Life Member Supporting Member

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    I don't have time right now but one day I want to get into making some blades. Never really thought about stirring or moving the blade around during the quench.
     
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  30. Average Joe

    Average Joe Just A Everyday Joe Life Member Supporting Member

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  31. Zbizzle911

    Zbizzle911 Charter Freedom Lover Charter Member Supporting Member

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    Thanks man. Hope to have it done this week we will see.
     
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  32. Zbizzle911

    Zbizzle911 Charter Freedom Lover Charter Member Supporting Member

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    Got the handle scales done today. Now to sharpen it and do some testing to see how I did on my heat treatment.


    [​IMG]

    [​IMG]


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  33. Zbizzle911

    Zbizzle911 Charter Freedom Lover Charter Member Supporting Member

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    Lessons I've learned in this knife.

    1.) Get all the file marks out before quenching
    2.) I need tongs
    3.) I need more clamps for glue up
    4.) Got to build a knife sanding clap jig thing lol
    5.) Hell im sure there's more these are just the highlights
     
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  34. Zbizzle911

    Zbizzle911 Charter Freedom Lover Charter Member Supporting Member

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    Got another bigger motor today. This is 4.5 hp lol. Should be plenty of power. Ordered my wheels and now to build the frame and stuff. [​IMG]


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  35. JimP42

    JimP42 Mostly harmless Benefactor Charter Life Member

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    RTP-ish
    An honest 4.5 HP is about 50 amps at 120 or 25 amps at 240.
     
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  36. Zbizzle911

    Zbizzle911 Charter Freedom Lover Charter Member Supporting Member

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    Yeah this one is 120. It’s from a nordictrack treadmill. Already powered it up with my variable speed control works fine


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  37. cold1

    cold1 Member Supporting Member

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    I hear Tim the Toolman Taylor, more power! Once built you'll have to paint Binford tools on it. :)
     
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  38. hp468

    hp468 Member Supporting Member

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    Is this an actual 4.5hp or is this "shop vac" horse power?

    4.5 real hp on a belt grinder will be pretty dang impressive/destructive, certainly shouldn't have to worry about bogging that down.
     
  39. JimP42

    JimP42 Mostly harmless Benefactor Charter Life Member

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    I was hinting at that before. Clearly not a 50A 120v motor, if there is even such a thing. Definitely "shop-vac" (stalled torque) HP.
     
  40. VA_GENTLEMAN

    VA_GENTLEMAN Gone Galt Benefactor Charter Life Member

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    Yeah.. the HP conversion for Shop-Vacs are hard to nail down as they just don't really compare with moving air. But on the flip side.. get one of the SX2 motors... those are pretty torqued...