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thefrog

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thefrog last won the day on February 28 2016

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  1. thefrog
    Been busy with exams and university in general ... Need to get the AC wiring done, then I can test if it works well. Yes I did all the machining on a 3-axis CNC. All CNC programs written by hand, no CAM involved ... wouldn't do that again The feeder is much better to be printed than machined. If I had a CNC at hand I would much rather do a redesign to integrate the Hotend into the extruder body and maybe watercool that. Also I'm doing a more or less regular write up of the build in the Reprap forum, if youre interested: http://forums.reprap.org/read.php?336,757011
  2. thefrog
    @foehnsturm did you scrap your CoreXY? I'm currently building mine: Oh and I've made this:
  3. thefrog
    So now onto parts. You'll need : 1x 13t gear modul 1 1x 60t gear (modul 1, 4mm wide) -> I machined one side down so its only 3.6 wide but has a small hub part thats 4mm wide, Ø4 bore 1x Extruder drive gear (MK8 wheel) Ø9 OD, ca. Ø7-7,5 on the theeth diameter, 8mm wide, Ø4 bore (I've just hobbed the wheel with a M6 tap like ) -> if you switch to a different bore size (e.g. Ø5-6) you can buy MK8 wheels here 1x Ø4x18 axle (or whatever bore you did choose) -> cylindrical pin 2x flanged bearing 4x8x3 MF84 2RS -> here 1x 3x10x4 bearing 2RS version -> here 1x M3x7,5 threaded pin 1x ca.51,2-51,5 length Ø4 PTFE 1x Ø8x16 spring medium/high strength
  4. thefrog
    Thats what I used ... It's rated at ≥25 N/mm² after 24h. So I suppose I'm good
  5. thefrog
    Would still be to big ... You have to remove the hub part of the gear completely Both gears are glued onto the axle so I'm not 100% sure if they hold up well ... but I'm working on a mechanical connection between the two gears much like a claw clutch. But my glue is capable of much higher torque, I'm just not sure about surface area :/
  6. thefrog
    Here are the STLs for main body parts Mechanical Parts will follow tomorrow
  7. thefrog
    BTW you need to manufacture/machine some parts yourself to make this design work !!! e.g. the hub of the 60t Gear has to be shortened
  8. thefrog
    Haven't had the time to test it yet. But everything goes together nicely, so would be nice if someone could confirm if it works alright. Will upload some STL's and instructions in a minute.
  9. thefrog
    I've been working for a while on a derivative of the slim Extruder ... Really great design foehnsturm It's for a big CoreXY I build at work. And maybe a second one for me Let me know what you think of my design
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