• Scam Alert. Members are reminded to NOT send money to buy anything. Don't buy things remote and have it shipped - go get it yourself, pay in person, and take your equipment with you. Scammers have burned people on this forum. Urgency, secrecy, excuses, selling for friend, newish members, FUD, are RED FLAGS. A video conference call is not adequate assurance. Face to face interactions are required. Please report suspicions to the forum admins. Stay Safe - anyone can get scammed.
  • Several Regions have held meetups already, but others are being planned or are evaluating the interest. The Calgary Area Meetup is set for Saturday July 12th at 10am. The signup thread is here! Arbutus has also explored interest in a Fraser Valley meetup but it seems members either missed his thread or had other plans. Let him know if you are interested in a meetup later in the year by posting here! Slowpoke is trying to pull together an Ottawa area meetup later this summer. No date has been selected yet, so let him know if you are interested here! We are not aware of any other meetups being planned this year. If you are interested in doing something in your area, let everyone know and make it happen! Meetups are a great way to make new machining friends and get hands on help in your area. Don’t be shy, sign up and come, or plan your own meetup!

Recent content by Gennady

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    Worn nuts for mill leadscrew

    This is complete nut yet to be machined. Surprisingly - core disintegrated right away - it was sand bounded with epoxy. Surface finish is not great, but nothing to worry - it will be turned and machined anyway.
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    Worn nuts for mill leadscrew

    There were many of unknowns - composition, oxidation, temperature, but I see Jeff managed that. Here bronze is cooling in the molds This one is complete with cavity and core This is just a cylinder for other type of nut restoration that I have in mind. Thisrd mold was half full but...
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    Worn nuts for mill leadscrew

    OK. So first and foremost - HUGE THANKS to Jeff. He was doing, everything - molds preparation, furnace, crucible load and actual pour. I was just a happy spectator. Sorry for being metaphorical - but it was like he is a Hephaestus and his furnace is a volcano, Here is a short video of...
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    Worn nuts for mill leadscrew

    I've seen guy on youtube creating pouring pool around lead screw and poring babbitt. To avoid babbitt sticking to lead screw he is covering it with soot from alcohol lamp. Pretty clever. I made nuts from HDPE for testing. Currently gearing up for melting some bronze - I have copper and tin/led...
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    Worn nuts for mill leadscrew

    Thanks Ironman. that was already suggested in earlier posts. Few caveats here - I don't have acetal (I asked few local suppliers - they are asking too much), second , I need nut with the flange - not sure how to press flanged cylinder equally and uniformly to the led screw. Is there...
  6. G

    Hello From SW Ontario

    Welcome from Ottawa.
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    Anyone using ChatGTP?

    Paid version really is. For coding . I tried that. I asked to create quite complex and functionally rich program for Arduino, was asking for additional features, refactoring and plenty of other stuff. I just loaded that into Arduino and it worked (small twicking included, LOL ). Afte that...
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    Anyone using ChatGTP?

    It is not your friend. It is you!!! good AI chat partner is able to adjust itself to your style, vocabulary, way of thinking , so - it is just your "alter ego". This is not a friendship.
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    Anyone using ChatGTP?

    Folks, don't need to look at AI as human being - it is not. It is just super powerful search engine, complier of data and collate engine. Nothing more. Try to ask questions about feeling, sensitivity, self awareness, conciseness, (God forbid - about love) you will see very dry prebuilt...
  10. G

    The ultimate filer

    And you should replay with heavy German accent - I'll be back!
  11. G

    Worn nuts for mill leadscrew

    It means - it is a lunch time !
  12. G

    Worn nuts for mill leadscrew

    It is close up camera barrel distortion. End is perfectly square , I verified :) Anyway, remember, I told it does not splitting or chipping - I jinx it :) I started to drill mounting hole in the flange and it broke. Had to rebuild one - luckily I had enough of the threaded block...
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    Worn nuts for mill leadscrew

    LOL . No any hidden agenda. I had several plastic bottles and containers made of HDPE with different colours. i chopped them into relatively small pieces, mixed altogether and then reheated and pressed into form. That has created that "marbleized" look. It holds together very well, though...
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    Worn nuts for mill leadscrew

    I prepared two round pieces of HDPE and cut internal thread in each. There was no any accidents or mishaps, though tension was very high - I was checking and rechecking cut depth and back to zero every time. It looks a bit messy due to "marbeling" colours and twirls, but profile and dimentions...
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    Alexander Deckel SO Clone

    Even candle paraffin works OK, Any petroleum based vax is very "liquidy" when molten. The trick is to create uneven heat - one part that is "outside" - hot , another part that is "inside" is still cold - that we free up these parts
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