• 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

    Tips/Techniques Printed worm drive rotary table

    I do both. There are some very good gear generator add-ins for Fusion which can generate tooth profiles correctly, or sometimes I will design from scratch - for example creating a cycloidal drive epitrochoid tooth profile. McMaster-Carr, KHK Metric, SPI and many other retailers have good...
  2. Arbutus

    Tips/Techniques Printed worm drive rotary table

    Could be. In previous tests one of the concerns I had was oil creeping between laminations over time. Exposure to oil and stress is not a good environment for most 3DP parts. That doesnt seem to happen with vaseline. I'll try other greases on the next round of tests. The Nylon10 and PA-GF i'm...
  3. Arbutus

    Tips/Techniques Printed worm drive rotary table

    And after another long run, there is some noticeable wear and the gearing now spins more freely. The input shaft backlash is now about 2 degrees, whereas before it was friction locked. The output shaft backlash (back driven free play) is extremely small and probably better than my mill's RT...
  4. Arbutus

    Tips/Techniques Printed worm drive rotary table

    M3 embedded inserts from the back side. They are 5.4mm OD and melt perfectly into a 5.2mm hole.
  5. Arbutus

    Tips/Techniques Printed worm drive rotary table

    The job was to build a modular rotary mount as part of a synchronized camera positioning system. This stage is a horizontal base mount for large (2Kg +) cameras costing more than my car, so it has to be sturdy and do the job reliably. Previous iterations were made from CNC milled 6061with...
  6. Arbutus

    Plug identification

    JST-SH series
  7. Arbutus

    Bambu Labs to implement an authorization and authentication protection mechanism

    Same here. No LAN mode. Crap. That means the printer is worthless when the Telus WAN dies.
  8. Arbutus

    Ender 3 Max extruder upgrade options

    MicroSwiss make a direct drive extruder and hotend system that accepts the standard nozzles. I use one on an Ender5 Pro and it has worked without any issues for about 2 years so far. It uses the extruder motor from the original printer.
  9. Arbutus

    Schematics and Circuit Board layout with Fusion 360

    FWIW, I am using MQTT with ESP32 based hardware nodes to provide local compute/actuate/sense functions with a distributed broker system running on a Teensy 4.1 MCU. The benefit is a much simpler m/c control system that is inexpensive and easily extended, even between machines and their support...
  10. Arbutus

    Adding an emergency stop button on 3 phase motor, yes or no

    General question - does the VFD stop the motor abruptly when this LV eStop is used? If not, would the addition of an active shaft brake make sense ? Asking for a friend
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