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Unsere Laberecke - hier kommt alles rein was nicht in andere Foren passt aber dringend mal besprochen werden muss - gerne auch mit einem Augenzwinkern ;-)
Re: PSA bad endstops! - 8 Monate zuvor
... if thinking about resoldering - cut the legs of the switch at the "knee", then reverse it and fix the cuts by soldering ... schould be mechanically sturdy enough to work as meant to ...von VDX - General
Re: PSA bad endstops! - 8 Monate zuvor
... with this JST-connectors it's not really a problem to rearrange the wires (by releasing the nose with a needle and extract and reinsert the wires) - had to do this with a bunch of 20x connectors, when one of our suppliers "mirrored" an order of our PCB's for a sensor, we manufactured then for Siemens ... and they (Siemens) were in urgent need for a small series, before the "correct" PCB's couvon VDX - General
Re: [moved here] - some ideas about micro/nano-fabrication and such ... - 8 Monate zuvor
... it's not really meant for Joe average -- more for interested individuals or R&D groups ... either comercial or DIY/OSHWvon VDX - Tech-Talk
Re: [moved here] - some ideas about micro/nano-fabrication and such ... - 8 Monate zuvor
... and for "micro/nano-positioning" -- if you look in my first attached image - on the left, above "Positionierer" - this is a 3-axis nano-positioner, assembled from 3 "Piezolegs"-drives. This setup has a moving/positioning range of 23x23x23mm in XYZ with an overall accuracy of 150 nanometer per "step" or, when in "clamped" mode, even down to sub-nanometer resolution ... what it lacks in this vvon VDX - Tech-Talk
Re: [moved here] - some ideas about micro/nano-fabrication and such ... - 8 Monate zuvor
... by the way - with the galvanic approach you can easy manufacture any size and form of tips and probe-points, which you can get as "hollow form" in a plastic sheet. This would be a perfect use for the UV-LCD-3D-printers with roughly 25 microns big "voxels". With some tweaking you can get even finer resolution, if you modify a common data-beamer with an UV-LED as light source and adding a redvon VDX - Tech-Talk
Re: [moved here] - some ideas about micro/nano-fabrication and such ... - 8 Monate zuvor
... I had a cooperation (more I had to help them solve some handling issues), from where I've got a bunch of "nano-nailheads" -- it's essentially a halfsphere of gold or platinum with 30µm diameter with a 30 or 50µm long "nano-needle" centered at the flat side. This nano-needles were around 100 nanometers at the center-point connection and some nanometers at the tip - they were made galvanicallyvon VDX - Tech-Talk
Re: WIKI Clean up - 8 Monate zuvor
... from 1999 to 2006 I was busy with R&D for micro/nano-tech and too handling them (microscopy, micro/nano-positioning, micro-assembly, ...). If you'll need some help here -- have some of the parts and more in my basement (microscopes, grippers/tweezers, micro-positioning stages, ...) Here some related images:von VDX - Tech-Talk
Re: WIKI Clean up - 8 Monate zuvor
... with the "laser-thermo-transfer" some nanometer thick layers can be "sprayed" or more like "PVD" coated (as in Physical Vapor Deposition) - the lower limit are actually the spot sizes of down to 50 microns with laser diodes or down to 10 microns with fiber-lasers and such (have some UV-DPSS and actually an "green" picosecond laser for testing until end of May). What would help with finer latvon VDX - Tech-Talk
Re: WIKI Clean up - 8 Monate zuvor
... for some decent "microfabrication" in sort of a DIY approach you can use lasers with a fine spot - common fiberlasers have spot diameters around 30 microns, with different optics even down to below 10 microns. Here I was testing with "laser assisted thermo-transfer" of previously applied spray paint with a fiber laser (30 micron spot) and a blue laser-diode (80 micron spot) - in the videos wvon VDX - Tech-Talk
Re: WIKI Clean up - 8 Monate zuvor
... there is the "tech-talk" subforum, so I'll move it there ... but if there is some interest, I can create a forum related to "micro/nano-tech" too ...von VDX - Administration, Announcements, Policy
Re: thermistor calibration - 8 Monate zuvor
... so more like hiding the fact that they're knock-offs? With my knowledge nickel-sensors are named "NI(xxx)" for nickel ... and "PT" is meant for platinumvon VDX - General
Re: thermistor calibration - 8 Monate zuvor
... you can try with fluid metal with a low melting temp.von VDX - General
Re: thermistor calibration - 8 Monate zuvor
... I've done some temp. sensor development with PT100, PT1000 and Ni200, where the sensing target range was between 0°C to 1000°C -- is pretty easy, when the curve is nearly linear, as with the PT sensors ...von VDX - General
Re: Independently, Manually Controlling Dual Axes - 9 Monate zuvor
... then maybe "Z", "ZA" and "ZB"? ... while A and B arent used otherwise, the parser could solve itvon VDX - Firmware - Marlin
Re: Independently, Manually Controlling Dual Axes - 9 Monate zuvor
... it's possible, but not so easy, to modify Marlin to do what you want - I had to tweak it for different reasons too some years ago. Essentially you'll have to add some G-codes and change the parser for moving the spezific motors separate -- e.g. something like using "Z", "Z1" and "Z2" in your moving G-codes. For example: "G1 X Y Z E F" will move both axes together - while ".. Z1 .." or ".. Zvon VDX - Firmware - Marlin
Re: 100:1 Geared nema 17 wont turn - 9 Monate zuvor
@maogeken -- you're added to the "eventually SEO-spammers" list - any more similar posts will remove the "eventually"von VDX - Stepper Motors, Servo Motors, DC Motors
Re: Some "serious" laser-marking with a fiber-laser ... - 9 Monate zuvor
... assembling another high quality "variant" for engraving and cutting "organic" materials -- it's a 10Watt-RF-CO2-laser with a galvohead, 2.5x-beam-expander and 50x50mm scan area. With the small scan area it's enough energy density to cut throug some mm acrylic ... for bigger working area the laser with galvohead will be set ontop of a 500x500mm XY-CNC -- the software is capable of splitting bvon VDX - Laser Cutter Working Group
Re: Laserdioden werden immer stärker - wofür verwenden? - 9 Monate zuvor
... ein paar Galvokopf-Anschraub-Adapter mit Aufnahmemöglichkeit für einen Beam-Expander habe ich noch - für den würde sogar die gekürzte Variante passen. Jetzt muß ich noch einen Klemmeinsatz mit 42mm Loch fräsen (die Faserlaser-Köpfe haben 35mm, die Dioden oder CW-Faserlaser-Köpfe 12mm) ... sowie einen Anschraub-Adapter fürs befestigen am CO2-Laser:von VDX - Laser-Ecke
Re: Laserdioden werden immer stärker - wofür verwenden? - 9 Monate zuvor
... bei den blauen Laserdioden habe ich aktuell 5W mit einem symmetrischen runden 0.05mm Spot (Lasertak-CNC-Laser) und zwei Sculpfun 10Watt-Module (S10 und S30 Pro) mit einem "quadratischen" 0.08mm Spot - ansonsten noch einen größeren Klotz mit 8x 4.5W-Dioden auf einen Spot vom um 0.2-0.3mm -- da lohnt sich für mich der Aufbau eines weiteren nicht mehr. In Richtung Faserlaser bin ich auch mehr avon VDX - Laser-Ecke
Re: Laserdioden werden immer stärker - wofür verwenden? - 9 Monate zuvor
... zum "Multi-Laser"-Aufbau mit dem 500x500mm-XY-Frame habe ich für die 10Watt-RF-CO2-Laser jetzt noch einen Galvokopf mit 50x50mm-Optik und 2.5x Beamexpander bekommen. Hier nochmal das Bild von dem "Multi-Laser"-Aufbau und die Komponenten des Galvo-Kopfs:von VDX - Laser-Ecke
Re: RepRap Samuel - A variation on the Mendel - 9 Monate zuvor
... thumbs up!von VDX - General Mendel Topics
Re: Marlin: Hotend per M42 aktivieren - 9 Monate zuvor
... hier, das englischsprachige Marlin-Forum -von VDX - Software
Re: Marlin: Hotend per M42 aktivieren - 9 Monate zuvor
QuoteStefan101010 Warum aktiviert der Heater 3 den Heater 1 mit? ... keine Ahnungvon VDX - Software
Re: Marlin: Hotend per M42 aktivieren - 9 Monate zuvor
... mit "I1" wird für den jeweiligen Pin die Prüfung, ob er vordefiniert ist, aktiviert oder deaktiviert: Quote (I) = Ignore protection on pins that Marlin is usingvon VDX - Software
Re: Marlin: Hotend per M42 aktivieren - 9 Monate zuvor
... schau mal, ob du ohne den I-Parameter auskommst, indem du "unbenutzte" Pins verwendest bzw. die verwendeten Pins aus der Kontrolle entfernst - evtl. hats ja damit zu tun ...von VDX - Software
Re: Druckkopf Ender3 S1 ----- hilfeee bitte an die Elektroniker hier - 9 Monate zuvor
... ja, das kann schon sein - gerade bei Kurzschlüssen sind die relativ empfindlich ...von VDX - Extruder, Hotends & verschiedene Materialien
Re: Try to make a 3D printing filament welding device for fused filament fabrication for multi-color printing - 9 Monate zuvor
... good work and thumbs up!von VDX - General
Re: TMC-Verbindungsfehler - 9 Monate zuvor
... zumFehler kann ich dir nicht weiterhelfen -- zu Bewegungen in die andere Richtung evtl. schon - mit G92 kannst du die aktuelle Position auf irgendeinen beliebigen Wert setzen, dann gehen auch Bewegungen in die "Gegenrichtung".von VDX - Elektrik & Elektronik
Re: Sparkcube 1.1XL goes Klipper - 9 Monate zuvor
... ich bin auch schon viel Jahre nicht mehr "am Puls der Zeit" -- meine Anlagen laufen entweder noch mit RADDS und Marlin4Due über ein von mir modifiziertes Pronterface, oder über "spezifische" Controller, je nachdem ob CNC-Fräse, Lasergravier oder Galvovon VDX - Elektrik & Elektronik