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Re: BOLTS, a standard parts library for OpenSCAD and FreeCAD - 11 years ago

Ah, and another question. Do you have any idea how copyright and license issues apply to the case of the SolidWorks configurations? For example consider the case that someone contributes a model file that is licensed under GPL. Now someone creates a larger model or a assembly that contains configurations derived from the GPL model file. Does he have to license the larger model or assembly under

by jreinhardt - 3D Design tools

Re: BOLTS, a standard parts library for OpenSCAD and FreeCAD - 11 years ago

Hi again, I did not manage to finish the SolidWorks Backend last week, a bit of refactoring turned out to take longer than expected. But now I think I got most of the exporter done. To setup a table for generation, one needs a model file (lets call this one nut.model for the sake of this explanation) and a base file (the manifest) and put it into the folder corresponding to the collection from

by jreinhardt - 3D Design tools

Re: BOLTS, a standard parts library for OpenSCAD and FreeCAD - 11 years ago

If you want to, you can maintain a set of separate manifest files and recreate the design tables, all the tools are/will be on github.

by jreinhardt - 3D Design tools

Re: BOLTS, a standard parts library for OpenSCAD and FreeCAD - 11 years ago

QuoteDale Dunn Some metadata, especially pitch, will be necessary for minimum functionality across all platforms, I think. Especially for users who can't free themselves from inch hardware, where multiple pitches of a nominal size are much more commonly used. This is something that has to (and can) go into the blt file. I life in metric land, so I never had to deal with multiple pitches. QuoteD

by jreinhardt - 3D Design tools

Re: BOLTS, a standard parts library for OpenSCAD and FreeCAD - 11 years ago

Very nice! What remains to be done until we got a complete "BOLTS for SolidWorks": * I need to think of a file format for the manifest file (".base file"), so that the parameter names for design tables can be easily configured * I need to write a backend for BOLTS that generates the Excel design tables in a controllable and robust way from the backend independent data that BOLTS contains (in t

by jreinhardt - 3D Design tools

Re: BOLTS, a standard parts library for OpenSCAD and FreeCAD - 11 years ago

Hi, thank you for the example spreadsheets, they were helpful. I hacked together a proof of concept script that writes an excel file using the excellent xlwt library from . I attach the one resulting from the BOLTS data on DIN934. Could you please check whether this works. If this works than it is very easy to export the BOLTS data to Design Tables automatically, the proof of concept was only

by jreinhardt - 3D Design tools

Re: BOLTS, a standard parts library for OpenSCAD and FreeCAD - 11 years ago

I had a stab on STEP export yesterday, and came surprisingly far. I think I will try to get this ready. As the roadblocks are similar for SolidWorks support, we could try to do see what we can do, if you want. If I understand correctly, the first step would be to generate Excel Spreadsheets from the BOLTS data in a form that SW understand. If you can tell me how such a spreadsheet should look or

by jreinhardt - 3D Design tools

Re: BOLTS, a standard parts library for OpenSCAD and FreeCAD - 11 years ago

You raise a lot of interesting points. Thank you for your input. I will try to summarize how I understand the SolidWorks situation: The user would download a set of SolidWorks files with the parametrized geometry (one for each class of files) and a set of corresponding spreadsheets. The user would put all of them in a folder called e.g. BOLTS0.3. To get a certain part (e.g. a M4 washer DIN125A),

by jreinhardt - 3D Design tools

Re: BOLTS, a standard parts library for OpenSCAD and FreeCAD - 11 years ago

I would like to have the general process as automated as possible, and also as upstream oriented as possible. The reason for the first is that this allows to handle large amounts of data, avoids neglected and forgotten stuff and makes frequent releases painless. The reason for the second one is that I want information to flow back as much as possible. If someone is adding some data to a configura

by jreinhardt - 3D Design tools

Re: BOLTS, a standard parts library for OpenSCAD and FreeCAD - 11 years ago

So it seems that these configurations are the way to go for SolidWorks. If I understand correctly, someone would need to model the geometry in a parametric way, and we need to get the data from BOLTS YAML files into the spreadsheats in SolidWorks. It seems SW can read excel files, so I think there should be a way. I handle non-standardized sizes by letting the user specify it freely. This is obv

by jreinhardt - 3D Design tools

Re: BOLTS, a standard parts library for OpenSCAD and FreeCAD - 11 years ago

I do not know SolidWorks, so I do not know how BOLTS could be best integrated. But is there no standard parts library in SolidWorks? I thought the commercial packages usually have that. One possibility (that would also benefit other CAD packages) is to create STEP files for all parts. This results in a huge number of files as e.g. a simple bolt has a length and a diameter, and one would need to

by jreinhardt - 3D Design tools

Re: BOLTS, a standard parts library for OpenSCAD and FreeCAD - 11 years ago

The data (dimension tables, ...) is stored in YAML files, so I see no problems that would prevent one to write a interface to your CAD application in the language of your choice. The particular geometries of the parts however are not specified, so it would be necessary to add parametric representations of the parts to the mix in a form that the CAD application understands. BOM functionality is d

by jreinhardt - 3D Design tools

BOLTS, a standard parts library for OpenSCAD and FreeCAD - 11 years ago

Hi everybody, in the last few months I worked on a standard parts library for open source CAD tools. The idea is that much of the data you need to create a standard part are things like dimension tables and standard names. The idea of BOLTS is to collect this information in a human and machine readable format and reuse it to easily create standard part libraries for different CAD tools with. You

by jreinhardt - 3D Design tools

Re: Messen mit dem Infrarot-Thermometer - 13 years ago

Das könnte auch noch interessant sein:

by jreinhardt - Altes Forum

Re: Messen mit dem Infrarot-Thermometer - 13 years ago

Infrarotthermometer verwenden meistens einen pyroelektrischen Sensor mit einem entsprechenden Bandfilter davor, der nur Infrarot durchlässt. Der Sensor reagiert auf winzige temperaturänderungen, die durch die einfallende Infrarotstrahlung entsteht (misst also "Menge der einfallenden Strahlung). Das wird unter Annahme eines schwarzen Strahlers in eine Temperatur umgerechnet. Wenn man keinen Schwa

by jreinhardt - Altes Forum

Re: Funkenerodieren - 13 years ago

Ich hatte neulich das mal entdeckt das umgeht die Vorschubproblematik relativ elegant. Möglicherweise könnte man das verwenden, um Düsen ohne Drehbank herzustellen.

by jreinhardt - Neue Ideen - Archiv

Re: Wie die Rillen glätten oder ausspachteln ? - 13 years ago

Potassium hydroxide ist aber Kaliumhydroxid, nicht Natriumhydroxid. Ein paar der Kommentare hier sind noch zum thema (das hatte ich in Erinnerung gehabt):

by jreinhardt - Altes Forum

Re: Wie die Rillen glätten oder ausspachteln ? - 13 years ago

Es gibt das hier: Und irgendwo hab ich mal gelesen, dass NAtriumhydroxid mit PLA wohl funktioniert, das ist in Rohrreiniger drin. Achtung, ist aber sehr aggresiv, Handschuhe und Schutzbrille sind eine gute Idee, wenn man damit hantiert. Und es gibt wasserlöslichen Kunststoff zum Drucken

by jreinhardt - Altes Forum

Re: Printrun unter Win7 keine Vorschau - 13 years ago

Die aktuelle Printrun Version hat einen Fehler in Zeile 1028 von pronterface.py. Da stimmen irgendwelche Tupeldimensionen nicht überein, sollte nicht schwer zu fixen sein, aber man kann auch einfach 1028-1031 auskommentieren, dann gehts.

by jreinhardt - Altes Forum

Re: Erfahrungen Shops - 13 years ago

Ich hab gute Erfahrungen (jeweils1 Bestellung) mit den folgenden shops gemacht, jeweils schnelle und problemlose Lieferung: reprap-fab (es waren zum Teil neuere Versionen von den Plastikteilen noch zusätzlich dabei, die Qualität ist sehr gut), grrf (haben zum Teil deutsche Anleitungen in ihrere Wiki), reprapsource, watterott.com Außerdem hab ich bei Mendelparts.com bestellt. Das werde ich nicht

by jreinhardt - Altes Forum