• 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!

Search results

  1. Matt-Aburg

    Making Ingots

    Even if there is not much benefit in terms of oxidation, time saved from dumping less volume into the crucible will save gas. I will take you up on the comparison, once I get to melting.. There is also experiments to see what is the best flux too. See volume comparison.
  2. Matt-Aburg

    Making Ingots

    This thread continues my previous one on "press questions". I have a process for making briquettes down and also have other material to try. Briquette density is 68 % of solid. The compression ratio for fill is 7-1 over loose and is much easier to handle, and less air to oxidize. This is the...
  3. Matt-Aburg

    Aluminum Chips press?

    Conclusion to this thread, and the beginning of a new one.. Here is a picture of some pucks I made last night. The one on scale is 384 grams and is Dia 2.5 x 2.600 long. Puck density is 147 grams / inch. 6061 solid is 216 gram / inch for 2.5 dia. Ratio for compressed puck to solid is 68%. The...
  4. Matt-Aburg

    Aluminum Chips press?

    Very little air... we will soon find out. Alslo ton, I did not max it... I will check on the next puck
  5. Matt-Aburg

    Aluminum Chips press?

    Finally T1, This was two full fills. The piece feels like a solid almost.
  6. Matt-Aburg

    Aluminum Chips press?

    Nope. I have a 50 ton electric hydraulic press. All the tooling is ready and I will try it out this weekend. pics very soon.
  7. Matt-Aburg

    Aluminum Chips press?

    What is your flux? I saw on YouTube, people using salt.
  8. Matt-Aburg

    Aluminum Chips press?

    This tubing is 2.49 ID. It is called DOM, Draw over Mandrel. The wall is thicker than schedule 80, and is 0.250. The OD is 3.00. I made a ring that's 4.00 OD x 3.00 ID and 1.0 thick as a flange and welded onto the pipe. This is for 2 reasons, one that The bore on the press is 3.125, and second...
  9. Matt-Aburg

    Aluminum Chips press?

    I am finally getting the die and punch ready .. real work does put a hold on things at times. I have a question if anyone knows. My die is made of DOM tubing at 2.490 DIA ID. How much clearance should the punch have? I currently have it a 4.485 (.005 less) I think the clearance should be small...
  10. Matt-Aburg

    An excellent free (for makers) CAD

    This software can bring in a full assembly from NX (also siemens). I am going to evaluate the free viewer now to see if this will help my boss at work. The bonus part would be that it does not have to be converted like using the JT viewer, enabling him to open the latest and greatest.
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