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kevin-osborn

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  1. NOTE: THIS PROJECT REQUIRED MESSING WITH HIGH AMPERAGE ELECTRICITY, AND THE DANGER OF FIRE IS HIGH! DO NOT ATTEMPT!!! (Unless you absolutely know what you are doing.) I have a modified UM2 (olsson, Meduza/Rober feeder, 1.75mm conversion) which has been working well for about 4 years. A month or so ago, my power supply just stopped working, 0V, no blue light. The printer still worked if I plugged my UM3 PSU in. I needed to keep printing, and I happened to have a high amp 24V PSU that I'd been saving for a CNC project. After opening the brick and determining that there was nothing I could fix, I removed the output wires/cable, soldered some leads to the end and connected to my power supply. Mostly because the replacement is pretty expensive, and the new supply was working, I decided not to order a new one. the only downsides were that the new powersupply wasn't very portable, and was very loud (it has a fan) During this, @gr5 told me that these supplies sometimes they come back to life when you let them sit over night. Sure enough I plugged the brick back in and it was working again. I didn't trust it enough to reverse my "borrowing" of the cord so I came up with a different solution: install a female barrel jack in the brick, and also on the new power supply. Putting a plug on the cord, I could swap back and forth as I see fit. I designed the adapter in Autodesk Fusion360 (it was pretty simple) It had to be printed with support on my UM3. BTW, That breakaway material is the bomb! Speaking of which, my cautionary tale: I've been cleaning my office and I couldn't find any heavy gauge wire. I decided to snipe some from a pc power supply harness, and well, I should have trusted my instinct, as it looked a little weedy once I stripped it. (thick insulation, but the wires weren't so thick.) As a result, the first time I powered on, the printer came on fine, but when I drew serious current (bed heating up) by starting a print, the wires vaporized. Fortunately for me nothing caught on fire (though the smoke detectors did go off). I ran to my local electronics store and got some 16 Ga wire. and everything has been running fine. If you do attempt this, (please don't) I think you should use at least 18 gauge stranded wire. Also, the PCB isn't the greatest quality and it's very easy to lift a trace pulling the original wires out when desoldering. The design will be up in youmagine https://www.youmagine.com/osbock/designs
  2. kevin-osborn

    UM2 Built Plate not heating up

    Yikes, I guess one of the wires had worked loose and was shorting. I had my wires come unsoldered from the buildplate itself. Difficult to solder because of so much metal, but it's been working for a couple of years since the repair.
  3. -- IC INFO ------------------------------ # IC manufacturer: NXP Semiconductors # IC type: NTAG216 -- NDEF ------------------------------ # No NDEF data storage populated: -- EXTRA ------------------------------ # Memory size: 888 bytes user memory * 222 pages, with 4 bytes per page # IC detailed information: Full product name: NT2H1611G0DUx Capacitance: 50 pF # Version information: Vendor ID: NXP Type: NTAG Subtype: 50 pF Major version: 1 Minor version: V0 Storage size: 888 bytes Protocol: ISO/IEC 14443-3 # Configuration information: UID ASCII mirror enabled: * Page 0x0B, byte offset 0 NFC counter: disabled (no tearing) No limit on wrong password attempts Strong load modulation disabled # Originality check: Signature verified with NXP public key -- FULL SCAN ------------------------------ # Technologies supported: ISO/IEC 14443-3 (Type A) compatible ISO/IEC 14443-2 (Type A) compatible # Android technology information: Tag description: * TAG: Tech [android.nfc.tech.MifareUltralight, android.nfc.tech.NfcA, android.nfc.tech.NdefFormatable] * Maximum transceive length: 253 bytes * Default maximum transceive time-out: 618 ms # Detailed protocol information: ID: 04:8F:63:3A:CB:52:80 ATQA: 0x4400 SAK: 0x00 # Memory content: [00] * 04:8F:63 60 (UID0-UID2, BCC0) [01] * 3A:CB:52:80 (UID3-UID6) [02] . 23 48 00 00 (BCC1, INT, LOCK0-LOCK1) [03] . E1:10:6D:00 (OTP0-OTP3) [04] . 9C 15 6C 01 |..l.| [05] . 75 6C 74 69 |ulti| [06] . 6D 61 6B 65 |make| [07] . 72 2E 6E 6C |r.nl| [08] . 3A 6D 61 74 |:mat| [09] . 65 72 69 61 |eria| [0A] . 6C 31 00 00 |l1..| [0B] . 30 34 38 46 |048F| [0C] . 36 33 33 41 |633A| [0D] . 43 42 35 32 |CB52| [0E] . 38 30 41 D6 |80A.| [0F] . 3D B9 07 57 |=..W| [10] . 54 2A 3E E7 |T*>.| [11] . 0A 86 77 D8 |..w.| [12] . 4B 87 80 05 |K...| [13] . E4 A1 BC 57 |...W| [14] . D2 CE 00 17 |....| [15] . 70 6C 61 2D |pla-| [16] . 62 6C 61 63 |blac| [17] . 6B 2D 37 35 |k-75| [18] . 30 67 2C 31 |0g,1| [19] . 36 30 39 2D |609-| [1A] . 31 37 30 30 |1700| [1B] . 34 00 00 00 |4...| [1C] . 00 00 00 00 |....| [1D] . 00 00 00 00 |....| [1E] . 00 00 00 00 |....| [1F] . 00 00 00 00 |....| [20] . 00 00 00 00 |....| [21] . 00 00 00 00 |....| [22] . 00 00 00 00 |....| [23] . 00 00 00 00 |....| [24] . 00 00 00 00 |....| [25] . 00 00 11 03 |....| [26] . 02 53 69 67 |.Sig| [27] . 20 00 1C 11 | ...| [28] . 14 01 75 6C |..ul| [29] . 74 69 6D 61 |tima| [2A] . 6B 65 72 2E |ker.| [2B] . 6E 6C 3A 73 |nl:s| [2C] . 74 61 74 32 |tat2| [2D] . 00 00 02 00 |....| [2E] . 0B 71 B0 00 |.q..| [2F] . 00 00 00 00 |....| [30] . 00 00 00 00 |....| [31] . 01 B0 77 E5 |..w.| [32] . 5C 11 14 01 |\...| [33] . 75 6C 74 69 |ulti| [34] . 6D 61 6B 65 |make| [35] . 72 2E 6E 6C |r.nl| [36] . 3A 73 74 61 |:sta| [37] . 74 32 00 00 |t2..| [38] . 02 00 0B 71 |...q| [39] . B0 00 00 00 |....| [3A] . 00 00 00 00 |....| [3B] . 00 00 01 B1 |....| [3C] . 20 52 00 00 | R..| [3D] . 00 00 00 00 |....| [3E] . 00 00 00 00 |....| [3F] . 00 00 00 00 |....| [40] . 00 00 00 00 |....| [41] . 00 00 00 00 |....| [42] . 00 00 00 00 |....| [43] . 00 00 00 00 |....| [44] . 00 00 00 00 |....| [45] . 00 00 00 00 |....| [46] . 00 00 00 00 |....| [47] . 00 00 00 00 |....| [48] . 00 00 00 00 |....| [49] . 00 00 00 00 |....| [4A] . 00 00 00 00 |....| [4B] . 00 00 00 00 |....| [4C] . 00 00 00 00 |....| [4D] . 00 00 00 00 |....| [4E] . 00 00 00 00 |....| [4F] . 00 00 00 00 |....| [50] . 00 00 00 00 |....| [51] . 00 00 00 00 |....| [52] . 00 00 00 00 |....| [53] . 00 00 00 00 |....| [54] . 00 00 00 00 |....| [55] . 00 00 00 00 |....| [56] . 00 00 00 00 |....| [57] . 00 00 00 00 |....| [58] . 00 00 00 00 |....| [59] . 00 00 00 00 |....| [5A] . 00 00 00 00 |....| [5B] . 00 00 00 00 |....| [5C] . 00 00 00 00 |....| [5D] . 00 00 00 00 |....| [5E] . 00 00 00 00 |....| [5F] . 00 00 00 00 |....| [60] . 00 00 00 00 |....| [61] . 00 00 00 00 |....| [62] . 00 00 00 00 |....| [63] . 00 00 00 00 |....| [64] . 00 00 00 00 |....| [65] . 00 00 00 00 |....| [66] . 00 00 00 00 |....| [67] . 00 00 00 00 |....| [68] . 00 00 00 00 |....| [69] . 00 00 00 00 |....| [6A] . 00 00 00 00 |....| [6B] . 00 00 00 00 |....| [6C] . 00 00 00 00 |....| [6D] . 00 00 00 00 |....| [6E] . 00 00 00 00 |....| [6F] . 00 00 00 00 |....| [70] . 00 00 00 00 |....| [71] . 00 00 00 00 |....| [72] . 00 00 00 00 |....| [73] . 00 00 00 00 |....| [74] . 00 00 00 00 |....| [75] . 00 00 00 00 |....| [76] . 00 00 00 00 |....| [77] . 00 00 00 00 |....| [78] . 00 00 00 00 |....| [79] . 00 00 00 00 |....| [7A] . 00 00 00 00 |....| [7B] . 00 00 00 00 |....| [7C] . 00 00 00 00 |....| [7D] . 00 00 00 00 |....| [7E] . 00 00 00 00 |....| [7F] . 00 00 00 00 |....| [80] . 00 00 00 00 |....| [81] . 00 00 00 00 |....| [82] . 00 00 00 00 |....| [83] . 00 00 00 00 |....| [84] . 00 00 00 00 |....| [85] . 00 00 00 00 |....| [86] . 00 00 00 00 |....| [87] . 00 00 00 00 |....| [88] . 00 00 00 00 |....| [89] . 00 00 00 00 |....| [8A] . 00 00 00 00 |....| [8B] . 00 00 00 00 |....| [8C] . 00 00 00 00 |....| [8D] . 00 00 00 00 |....| [8E] . 00 00 00 00 |....| [8F] . 00 00 00 00 |....| [90] . 00 00 00 00 |....| [91] . 00 00 00 00 |....| [92] . 00 00 00 00 |....| [93] . 00 00 00 00 |....| [94] . 00 00 00 00 |....| [95] . 00 00 00 00 |....| [96] . 00 00 00 00 |....| [97] . 00 00 00 00 |....| [98] . 00 00 00 00 |....| [99] . 00 00 00 00 |....| [9A] . 00 00 00 00 |....| [9B] . 00 00 00 00 |....| [9C] . 00 00 00 00 |....| [9D] . 00 00 00 00 |....| [9E] . 00 00 00 00 |....| [9F] . 00 00 00 00 |....| [A0] . 00 00 00 00 |....| [A1] . 00 00 00 00 |....| [A2] . 00 00 00 00 |....| [A3] . 00 00 00 00 |....| [A4] . 00 00 00 00 |....| [A5] . 00 00 00 00 |....| [A6] . 00 00 00 00 |....| [A7] . 00 00 00 00 |....| [A8] . 00 00 00 00 |....| [A9] . 00 00 00 00 |....| [AA] . 00 00 00 00 |....| [AB] . 00 00 00 00 |....| [AC] . 00 00 00 00 |....| [AD] . 00 00 00 00 |....| [AE] . 00 00 00 00 |....| [AF] . 00 00 00 00 |....| [B0] . 00 00 00 00 |....| [B1] . 00 00 00 00 |....| [B2] . 00 00 00 00 |....| [B3] . 00 00 00 00 |....| [B4] . 00 00 00 00 |....| [B5] . 00 00 00 00 |....| [B6] . 00 00 00 00 |....| [B7] . 00 00 00 00 |....| [B8] . 00 00 00 00 |....| [B9] . 00 00 00 00 |....| [BA] . 00 00 00 00 |....| [BB] . 00 00 00 00 |....| [BC] . 00 00 00 00 |....| [BD] . 00 00 00 00 |....| [BE] . 00 00 00 00 |....| [BF] . 00 00 00 00 |....| [C0] . 00 00 00 00 |....| [C1] . 00 00 00 00 |....| [C2] . 00 00 00 00 |....| [C3] . 00 00 00 00 |....| [C4] . 00 00 00 00 |....| [C5] . 00 00 00 00 |....| [C6] . 00 00 00 00 |....| [C7] . 00 00 00 00 |....| [C8] . 00 00 00 00 |....| [C9] . 00 00 00 00 |....| [CA] . 00 00 00 00 |....| [CB] . 00 00 00 00 |....| [CC] . 00 00 00 00 |....| [CD] . 00 00 00 00 |....| [CE] . 00 00 00 00 |....| [CF] . 00 00 00 00 |....| [D0] . 00 00 00 00 |....| [D1] . 00 00 00 00 |....| [D2] . 00 00 00 00 |....| [D3] . 00 00 00 00 |....| [D4] . 00 00 00 00 |....| [D5] . 00 00 00 00 |....| [D6] . 00 00 00 00 |....| [D7] . 00 00 00 00 |....| [D8] . 00 00 00 00 |....| [D9] . 00 00 00 00 |....| [DA] . 00 00 00 00 |....| [DB] . 00 00 00 00 |....| [DC] . 00 00 00 00 |....| [DD] . 00 00 00 00 |....| [DE] . 00 00 00 00 |....| [DF] . 00 00 00 00 |....| [E0] . 00 00 00 00 |....| [E1] . 00 00 00 00 |....| [E2] . 00 00 00 BD (LOCK2-LOCK4, CHK) [E3] . 40 00 0B FF (CFG, MIRROR, AUTH0) [E4] . 00 00 -- -- (ACCESS) [E5] +P XX XX XX XX (PWD0-PWD3) [E6] +P XX XX -- -- (PACK0-PACK1) *:locked & blocked, x:locked, +:blocked, .:un(b)locked, ?:unknown r:readable (write-protected), p:password protected, -:write-only P:password protected write-only --------------------------------------
  4. kevin-osborn

    Adding 1.0mm nozzle to Cura 3

    My one negative on the Solex is the fit isn't perfect. It clicks right in, but the fan shroud won't stay closed. I ended up adding two small disk magnets to the end of the existing fan shroud magnets, and that works fine. I was sold on the Solex for two reasons, both nozzle related: 1. Much cheaper than extra cores for the occasional nozzle size swap. I'm mostly interested (today anyway) with printing big layers, faster. And as @kmanstudios says, nozzles do get cruddy and it's good to replace them now an then. 2. Filled filaments. Carbon fiber, metal filled, etc. Notoriously hard on nozzles. There are new sapphire/ruby nozzles and cheaper hardened steel that last longer. I figure I can go through a lot of steel nozzles or a few sapphire before having to replace a whole core. BTW, don't use a blow torch to clean a nozzle with bronzefill filament. It works great for regular PLA, but I ended up sintering the bronze in the nozzle. But hey, it was just a nozzle! < $20 to replace.
  5. kevin-osborn

    Adding 1.0mm nozzle to Cura 3

    Cool. I was just pleased to get such fast print times. A part that used to take 30 min at .15mm layers now takes 8 min with .5mm layers and 1mm lines. As you said, I had to make sure the walls in my design were a multiple of the nozzle width (plus a little for some reason when the multiple was 1). When I set the walls to be exactly 1mm in my design, I got gaps in the perimeter (in layer view, hence actual gaps in code) especially on circular features. Probably some sort of roundoff error. made the shell width 1.1mm and all is well. (though it may be going over some lines twice.)
  6. kevin-osborn

    Share your experience of Ultimaker 3

    I would say, if you are using it in an un-air conditioned environment and the humidity is high, you'll have problems with the PVA filament. You might be able to rig some kind of dry-box. The new breakaway filament is better and less moisture sensitive.
  7. kevin-osborn

    Adding 1.0mm nozzle to Cura 3

    It used to be you could just type in the Nozzle width. I think in an attempt to save us from ourselves, (and show only supported Ultimaker products) the interface only shows up to .8mm nozzle. I searched around in this forum and I managed to get a print out by settting the "line width" in cura. I grepped around and found a bunch of files in: /Applications/Ultimaker Cura.app/Contents/Resources/resources/variants Note: this is on the Mac, other platforms, YMMV.... and copied one of them and edited to add 1.0mm nozzle size It shows up in cura. From various forum readings, the setting machine_nozzle_tip_outer_diameter is used to determine the "squished"line width" I measured (as best I could) the tip outer diameter (this is the flat "ring" around the hole) Create a file for the printer you want to change (In my case UM2) I copied one of the other files and used the naming convention to follow: ultimaker2_1.0.inst.cfg [general] name = 1.0 mm version = 2 definition = ultimaker2 [metadata] author = Ultimaker type = variant setting_version = 4 [values] machine_nozzle_size = 1.0 machine_nozzle_tip_outer_diameter = 1.40
  8. kevin-osborn

    Welcome to Ultimaker Cura 3.0

    It's very confusing as I had nothing loaded for the second extruder. If I select PVA then I can select the layer height. There isn't an option for none selected. I even tried unloading the printhead, and that didn't do nothin'
  9. kevin-osborn

    Welcome to Ultimaker Cura 3.0

    Why can't I select the layer height from the "Recommended" mode for Ultimaker 3? works fine for Ultimaker 2
  10. kevin-osborn

    infill not what I set in Cura 2.7 with TPU95

    I think I see what's going on. The infill pattern does change but it's a 3D infill with slanted planes. I'll have to do some test prints to see if it does what i want.
  11. when I've done flexible filament in the past, I like changing the infill to change the squishiness of the model. With Cura 2.7, when I use the Ultimaker flexible filament, the infill seems to be something variable (layer to layer) instead of what I set. If I change it back to PLA, it gives me what I want.
  12. kevin-osborn

    Bizarre firmware feeder issue

    I'm posting this in case someone else runs across it. I can't reproduce it, and it may be a random fluke, but if it's not, there may be something else going on. I have an Ultimaker 2, and I had been printing all day, When suddenly I had started a new print and the Ultimaker started singing! (stepper motor music). The brim was being put down, but when I looked in the back, the feeder was turning rapidly and continuously, grinding the filament. Thinking it was some interaction between my model, settings, and whatever I tried printing several other things from my card (exact gcode, known to work, like stretchlet) and the same behavior, power cycled, etc. no luck. As a last resort, I reloaded the firmware (well, I guess I upgraded, since I don't know how long it's been) and all is well. What makes me curious, is that it is a specific failure. Perhaps some internal state was reached which triggered a bug, or a very specific, non-fatal corruption occurred. (much shoulder shrugging....)
  13. kevin-osborn

    A fix for Ultimaker 2 heated bed not working

    This is just for other's future reference. I've had my Ultimaker 2 for a little over a year. The heated bed suddenly stopped working. After checking the output at the motherboard (24V) and at the heatbed connector, I turned the bed over and when I measured at the solder pads, there was a little arc, and it started working. I resoldered the bed, and all is well now.
  14. kevin-osborn

    Ultimaker 2 Collet Locks

    I'll try that. I love your feeder design, btw, thanks for that! I frikken love this forum!
  15. kevin-osborn

    Ultimaker 2 Collet Locks

    BTW, I ordered some 1/4" PFA on ebay, and it seems a little too big in OD. I think UM probably gets it in metric (6mm) which is a bit smaller than 1/4". It slides into the top of the extruder unit, but doesn't exit to mate with the extruder like the original one did. ID seems fine, and maybe a bit better than the original (.1mm or so bigger)
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