Talk:Oliver Log

Fri, May,26,2017

Lesson learned: I tried in Kicad unsuccessfull different ways to import the 3d .wrl-files automatically, eg. by environment path-variable $KISYS3DMOD, but it is however possible to assign manually a 3d-form towards a footprint by editing its parameters (right mouseclick over footprint, then choose the footprint and in its 3d-settings the "add form" button) and let it point towards your local library-path .wrl-file. There you can also correct wrong orientations of the object, e.g. in a diode.

Tue, May,23,2017

Some links related to the torchtable height controler:

Working document [1] AD7747 [2] Dummy page (?) [3] Pauls log [4]

---

Trying to re-use Pauls KiCad-Files run into the problem of beeing an older Version, what means all links are broken, see all the question marks in

• Reimport-problem on older Kicad files
• 

  All default parts are in the newer Kicad version replaced by smaller ones, so the links are broken

This is a known problem and theoretically there exists a way to fix it, see https://rheingoldheavy.com/new-stable-kicad-10-steps-to-import-an-old-kicad-project/, but its way to complicated to go through this procedure. Meaning, since Pauls circuit is not too complicated its probably far less work to simply rebuild it from scratch.

---

what about mechanical probing ? https://www.indiegogo.com/projects/bltouch-auto-bed-leveling-sensor-for-3d-printers#/ Answer: probably not well suited because of the heat.

--

Master-thesis on capacitive sensors: [5]

Mon, May,22,2017

Preparation for torchtable-workgroup meeting on 23.05.:

Suggestions for the long axis:

- supportet Rails [6] would be nice for better stiffness and rigidity, . Makes a price difference of about 20,- EUR or less per m .

* Instead of one 1"-shaft we could use two 1/2"-shafts to resemble the recent unversal axis design as is.

* Or instead we can use just one 1"-shaft and place the stepper onto the carriage (like shapeoko) 
  ==> simplyfied end-pieces (they are only needed to fix the belt).

- Universal Controler: Powerlolu as stepperdriver for heavier loads ?

* Was already discussed on OSE in 2013, see [7]

* sources are available at 
  GitHub [8] and 
  Upverter [9] and
  Allegro [10] and
  Cuteminds [11] and
  Balestrino [12].  

* new breakout board from OSH park at [13]

* I tested them already [14] [15] in combination with RAMPS and so far they seemed to work well.