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  1. #1
    Join Date
    Aug 2009
    Location
    East Warburton, Vic
    Posts
    357

    Default Anyone willing to make some custom bolts?

    Hi guys

    I need some new bolts for my slasher so that I can put different blades on it.

    Existing blades are 10mm thick but need to put 13mm ones on.

    So the shoulder where the blade sits needs to be 3mm higher and the hole in new blade is 35mm instead of 32mm, so new shoulder needs to be 35mm instead of 32mm.

    Will send you a brand new existing bolt to copy. I’ve put rough measurements on the drawing to give you an idea of sizing. Most of the diameter measurements are actually 0.04mm shorter.

    Existing bolts on my invoice says material is 4140 peeled.

    Would be looking at getting 8 made, 4 in use and 4 spares for when they wear down.
    Attached Images Attached Images
    Cheers

    DJ

  2. #2
    Join Date
    Sep 2016
    Location
    Canberra
    Posts
    87

    Default

    Yeah I could do it, as Im sure a lot of members could, but Lord thats going to be pricey out of 4140!
    Do you need rolled threads or cut?
    The sample pics look cut to me.

    Cheers M

  3. #3
    Join Date
    Aug 2009
    Location
    East Warburton, Vic
    Posts
    357

    Default

    Definitely cut from looking at them.

    Yes I know they’re gunna cost a few dollars, original bolts cost me about $51 each landed at my doorstep from WA.

    Any idea on what you’d charge?
    Cheers

    DJ

  4. #4
    Join Date
    Sep 2016
    Location
    Canberra
    Posts
    87

    Default

    I charge $20/hr cos I love what I do and my machines don't own me anything anymore. Probs take me 1/2hrs to do each one, so 80 - 100 labor. But to make 8 of them you are going to need 750mm of bar stock which I just checked would come to $380 just on the material! I rekon i'd be cheaper to buy them. Honestly I'd love to the job but it's be more expensive than it would just to buy them

  5. #5
    Join Date
    Aug 2009
    Location
    East Warburton, Vic
    Posts
    357

    Default

    So that’s about $60 each if my calculations are correct.

    I can’t buy them cause they don’t make them, I’d have to pay for them to draw up a new cad program etc as they’re done on a CNC machine.

    I’d rather the work went to someone here, so they’d get some pocket or beer money.
    Cheers

    DJ

  6. #6
    Join Date
    Sep 2016
    Location
    Canberra
    Posts
    87

    Default

    If those heads can be slightly undersize from 50mm that material would be less expensive

  7. #7
    Join Date
    Aug 2009
    Location
    East Warburton, Vic
    Posts
    357

    Default

    Quote Originally Posted by BrazOmatic View Post
    If those heads can be slightly undersize from 50mm that material would be less expensive
    Rather go a bit bigger if anything, they take a flogging. The slasher is designed to cut tea tree up to 75mm but blades just don’t last, hence wanting to use slightly thicker blades
    Cheers

    DJ

  8. #8
    Join Date
    Sep 2016
    Location
    Canberra
    Posts
    87

    Default

    If they could be a little undersize or bang on 50mm material would come down to 260

  9. #9
    Join Date
    Aug 2010
    Location
    Toorloo Arm, VIC
    Age
    39
    Posts
    1,270

    Default

    Quote Originally Posted by BrazOmatic View Post
    I charge $20/hr cos I love what I do and my machines don't own me anything anymore. Probs take me 1/2hrs to do each one, so 80 - 100 labor. But to make 8 of them you are going to need 750mm of bar stock which I just checked would come to $380 just on the material! I rekon i'd be cheaper to buy them. Honestly I'd love to the job but it's be more expensive than it would just to buy them
    Might be time to have a hard word to your supplier... Edcon's website says about $135 for 1 meter of 55mm diameter peeled 4140, and even Collier Miller are 'only' $242/m for 2.125" bright 4140.....

  10. #10
    Join Date
    Aug 2009
    Location
    East Warburton, Vic
    Posts
    357

    Default

    What size is the material you said would be $380?

    The 50mm is fine in raw material, it’s gunna get smashed around anyway.
    Cheers

    DJ

  11. #11
    Join Date
    Sep 2016
    Location
    Canberra
    Posts
    87

    Default

    Thats exactly what I was thinking. 65mm was the pricey one. I cannot get 55 (that would be ideal) but if your happy for me to start with 50mm and leave the heads undressed then that would be easy to. Let me have a chat to another supplier tomorrow and see if I can't get material at a better price.

  12. #12
    Join Date
    Sep 2006
    Location
    Mallacoota,VIC,Australia
    Age
    53
    Posts
    1,010

    Default

    What about reducing the thickness of the blade by 3mm, but only where the bolt area is so that way you could stick with the same bolts. Another idea, but the blade might be too hard could the hole in the blade be counter bored by 3mm ?.
    All The Best steran50 Stewart

    The shortest way to do many things is to do only one thing at once.

  13. #13
    Join Date
    Aug 2009
    Location
    East Warburton, Vic
    Posts
    357

    Default

    Quote Originally Posted by BrazOmatic View Post
    Thats exactly what I was thinking. 65mm was the pricey one. I cannot get 55 (that would be ideal) but if your happy for me to start with 50mm and leave the heads undressed then that would be easy to. Let me have a chat to another supplier tomorrow and see if I can't get material at a better price.
    Sounds good, 55mm would be ideal
    Cheers

    DJ

  14. #14
    Join Date
    Aug 2010
    Location
    Toorloo Arm, VIC
    Age
    39
    Posts
    1,270

    Default

    Quote Originally Posted by BrazOmatic View Post
    Thats exactly what I was thinking. 65mm was the pricey one. I cannot get 55 (that would be ideal) but if your happy for me to start with 50mm and leave the heads undressed then that would be easy to. Let me have a chat to another supplier tomorrow and see if I can't get material at a better price.
    I believe Edcon ship all over the country if you have no luck locally.

    For those in Melbourne, Bright Steels in Braeside are about the same price (or slightly cheaper) as Edcon, and have a pretty good range of stuff.

  15. #15
    Join Date
    Aug 2009
    Location
    East Warburton, Vic
    Posts
    357

    Default

    Quote Originally Posted by steran50 View Post
    What about reducing the thickness of the blade by 3mm, but only where the bolt area is so that way you could stick with the same bolts. Another idea, but the blade might be too hard could the hole in the blade be counter bored by 3mm ?.
    Material is Boron, only way for me to reduce thickness is with an angle grinder. Holes are punched.
    Cheers

    DJ

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