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  1. Arbutus

    UHMW

    Not my favourite material, but here's my $0.02: Just keep the swarf clear or there will be a spaghetti ball you will regret making. Lower the spindle speed, take deeper cuts than normal and pull the swarf away often. If you need a lube, try Johnson's Baby Oil, it works well on plastics and...
  2. Arbutus

    Schematics and Circuit Board layout with Fusion 360

    My PIC18F877 controller died. It used a WinDoze UI which refuses to run on Win10 or 11, and anyway I no longer have a Microchip programmer to fix things.... so it is joining more old windows stuff heading to the junk bin soon. The Teensy and the new Espressiv chips are light years ahead of the...
  3. Arbutus

    another mill: vise 4" $60

    https://www.facebook.com/marketplace/item/2241317392932792/?ref=search&referral_code=null&referral_story_type=post&tracking=browse_serp%3A02aa86f3-9044-4d79-803a-afa1280490ecMachine Vice - Coquitlam, BC
  4. Arbutus

    Schematics and Circuit Board layout with Fusion 360

    As someone who makes A LOT of smd boards, may I offer two suggestions which will make this a whole lot easier for those doing this for the first time... 1) buy a stencil. That makes the solder paste placement extremely easy, and accurate. The board manufacturer will supply those for a small...
  5. Arbutus

    CA-ON Large copper tubes?

    34" piece of 3" L grade copper tube, 0.1" wall thickness. Abbotsford BC. DM Me.
  6. Arbutus

    JCDammeyer's 42 projects

    Trade for some M8 taps? :)
  7. Arbutus

    Tips/Techniques Drill/Grind small hole in very hard steel

    The drill as you would expect, is very hard and brittle. A mag drill would be needed to apply high pressure and slow speed. And flooded with a good lubricant. Slow is the key point - this drill produces tiny chips (like an end mill) so it is very prone to chatter.
  8. Arbutus

    Tips/Techniques Drill/Grind small hole in very hard steel

    HiRoc drill will cut through that like butter. Just take the time to learn how to use one first. https://www.kbctools.ca/itemdetail/5-100-20340 HiRoc drill
  9. Arbutus

    Electronics Help

    Looking at the MachTech documentation - that is a 5V device. It produces a 0-5v TTL signal. docs: >> 4. Why would I need the VFD Filter? Sometimes machines that have a VFD or other frequency drive motor controller create a noisy electrical environment. This is similar to static on a radio when...
  10. Arbutus

    Electronics Help

    Are you asking for a circuit diagram? Or a PCB board layout? Is this single phase power or three phase?
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