• 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. Arbutus

    Benchtop Hobbing Machine - The BHM

    Lotsa learning this week. Mixed in with a load of Fusion Confusion. The F360 models are quite complex - 9 major subassemblies with around 350 parts and synchronized motion. Every once in a while, at random and for no possible cause and effect that I can find - an assembly will disintigrate. All...
  2. Arbutus

    Shop it seems simple, but I need help........ Hammer organization

    Horizontal Piling Spaces are at a premium in my shop, and I agree, hammers are a pest to store and find when you need one. Make a zip tie noose and hang 'em high.
  3. Arbutus

    Hello!

    And hello from Abbotsford!
  4. Arbutus

    Benchtop Hobbing Machine - The BHM

    And the root cause of the vibration under high load..... These things. I used these couplers on the X and Y axes. They are fine for light duty rotary transmission - but axially, they are springs! Under the light loads when cutting plastic and brass, any axial movement was not noticed, but...
  5. Arbutus

    Benchtop Hobbing Machine - The BHM

    So..... Brass m0.6 gears are not a problem but cutting a steel (1045) m0.8 gear was a real shakedown test. Literally. This is an m0.8 25 deg steel helical being cut just before I abandoned the job. I had it set to a full depth of cut (1.8mm) with a very tiny feed of 0.25mm/work...
  6. Arbutus

    Benchtop Hobbing Machine - The BHM

    Well that's a good question ! The T10 leadscrews I have seemed flimsy, and I really don't like brass running on steel. The leadscrews are a metric trapezoidal tooth form so they would transmit the load properly, but the brass nuts were sloppy, with a few thou backlash. OK for 3D printers but...
  7. Arbutus

    Benchtop Hobbing Machine - The BHM

    Well ! Thanks for all the kind words! I have managed to upload some videos to youtube of the BHM cutting a spur gear and a helical gear for your viewing pleasure. Spur gear: 15 deg Helical gear:
  8. Arbutus

    Benchtop Hobbing Machine - The BHM

    Yep all mine. The delrin gears are testers - the machine is quite solid and shouldn't have any trouble with steel gears - just like milling, with a slower feed rate. Next job is mitre/bevel gears with an involute cutter. Its all in the software!
  9. Arbutus

    Running Linux and which version in order to run WINE or some other WIN-7..WIN-10 option.

    Dual boot? It's a PITA of course. I use an external USB drive to save data when needed between Windoze apps and the Ubuntu apps. No more WINE.
  10. Arbutus

    Benchtop Hobbing Machine - The BHM

    The BHM - a benchtop hobbing and gear cutting machine. This project has been brewing for a couple of years and its now in a working, but not pretty stage, so I thought I would share a few details. Gear hobbing is a highly efficient and accurate machining process used to create teeth on gears...
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