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Update: 06/1  7:23am... Catalog updated *115 Print Ready Items* are now available... in .docx & .pdf

Please, help guide other members to this thread for Access & Information about the Repository.  Thank You!

The 3D Repository Files... 3D Repository   -    O-Scale Catalog Download... O-Scale Catalog

What is the 3D Repository?
The O-Scale 3D Repository is a group of like-minded people who are giving their time and money to assist others involved in the O-Scale Model Railroad Hobby that we are so enthusiastic about.  Firstly, *inclusivity* all OGR members have access to the Repository.  There is no need to conduct file sharing vis-à-vis PM… this allows the modest members access to knowledge without having to ask… thanks to the generosity of the Contributors.  Secondly, we would like new comers to 3D printing to have *early successes* and not become frustrated, even by adjusting the scale... and, for modelers not to *have* to constantly reinvent the wheel freeing them up for more creative endeavors.  Thirdly, to keep tightly knit to the OGR community where knowledge, enthusiasm and sharing abound.

How does the 3D Repository work?

It is a flat file server set up as a *Cloud*… it is *not* a website and does not have a URL address.

Do I have to register/sign-up with a username and password to use the Repository?

No… it does not require a login.

Can I view an Image while using the Repository?

No… you can view an image *if* you use NetGear’s Client software *and* login… however, there is no login.   All images are in the O-Scale Catalog which you can download and view.  The Catalog listings are in the same order as the folders/file’s directory in the Repository.

If you view the files as a tree (i.e., in Detail or List view… first icon upper right-hand corner) you will be able to see the entire folder name.  It should then be consistent with and in the exact order as laid out in the Catalog.

The system is *evolving* (it was set up in a day) so, it will change over time...

Is it only for 3D printing?

Other machine technologies are encouraged and welcomed... i.e., Laser cutting, Engraving, etc.  Please include .stp files with your .stl files or .svg files for laser cutting/engraving.

Why don’t you set up the Repository on Thingiverse?

Thingiverse or any other similar on-line service are very good services.

I do not want to sign-up on Thingiverse or any other similar on-line service.  I do not want others within the OGR community to *have* to sign-up for any on-line service.

I encourage *Anyone* who would like to create a Group for the OGR community on Thingiverse or any other similar service to do so.  I will assist you if you need assistance/guidance in doing so.



          A HUGE THANK YOU!!

         TO THE *CONTRIBUTORS*

         FOR THEIR TIRELESS DEDICATION AND GENEROSITY TO *OUR* HOBBY!!

--dennis

If, you would like to Contribute to the 3D Repository... shoot me an email ... and, I will set you up!

Thank you!



DISCLAIMER…

THE FILES CONTAINED WITHIN THE REPOSITORY ARE FREE AND SHARED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT SHALL THERE BE UNDER ANY CIRCUMSTANCES LIABILITY FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE FILES OR THE USE OR OTHER DEALINGS IN THE FILES CONTAINED THEREIN.

Have Fun!

Last edited by Dennis-LaRock
Original Post

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Just a quick thank you for doing this, and a question.  I am relatively new to 3D printing, and thus far have relied on the kindness of others providing files to print.  The design aspect of 3D printing is beyond me at the moment, which brings me to my question... has there been any discussion or thought to a "request" section where those who are proficient at the designing of 3D objects might be able to help out those looking for items that they cannot find.

Bill

Bill,

Yes, and, oddly enough that discussion is taking place at this very moment.   So, hear is one of the questions (there are many) that we are discussing...

Are you (the, Requester) able to provide *good* information/description/measurements/plans/drawings/photos etc. of the item you would like… to me, via email?

If you would like to try a test... please post the best *set* of descriptors that you can (normally, you would email them to me).  This would certainly go a long way in establishing the type of assistance that you and we are considering.  We want to be helpful... but, we do not want it to become a laborious task.

So, if you would like let's practice here... post your information here and, don't be shy ...we are here to help.

dennis

Last edited by Dennis-LaRock


Funny you should choose to do this now. I started looking at 3D printers on the 9th. Great minds and all that?

I noticed the catalog is in Word (docx) format. So for those that don't have Microsoft office, there are 2 open source office suites you can download that WILL let you access those documents- LibreOffice and OpenOffice.

LibreOffice is now updated way more often than OpenOffice, so I'd recommend that one. It's available for Windows, Linux, and Mac OSX v10.10 or later. There is a help file you can download and install too. Lot's of public support for the program. Will also print any document in pdf directly from the program. Does an incredible job of both importing and exporting Word and Excel documents. Power Point occassionaly will have a problem, as will Visio.
Download page:
https://www.libreoffice.org/do...p;pk_campaign=update


Last edited by Quietman

Checked and the catalog displays w/o a hitch in LibreOffice.

I have 2 comments on some items in the catalog.
First OMG How long would it take and how many spools of filament would you go through to print the Cincinnati Terminal in O scale?

Second- Ray must have worked in a brewery. I do instrumentation and control work and pages 36 and 37 are very much representative of some microbreweries I've worked at.

Tom,  If it will fit on a Glowforge Plus (Joanne's), Shapeways... or the like, I would think you could put it up (we can note printing facilitation).  It certainly does not have to be printed/cut/engraved at home.  Let me show my ignorance, can they be saved as .svg(s)?  I know very little about this (or any) process.  If anyone would like start a Topic on Cutting/Engraving that would be great... I have a lot to learn (and, maybe a few other folks do as well).

We are a very small group at the moment... the more we can teach and reach out is a tremendous benefit to all in our hobby.

dennis

Have a Anycubic Mega S coming. Got me to thinking. A number of years ago I did 3D modeling for video as a hobby. Is there a utility to take such models and convert them directly into a format the printer can use?

Which brings up another thread that would be useful. One on free 3D CAD / modeling software and converters. Would be interesting if you could take, for example, a Blender 3D object (most used open source 3D modeling and animation package) or a Sculptris model (great for organic modeling), and then convert them into some thing Cura or other slicer software could use if they don't output in a format directly importable in the slicer..

Quietman

If you have a computer model it should already be in a file like stp or iges etc.

You can open that in a CAD type program then export it as an STL, OBJ ,AMF etc. and these should be importable to almost any slicer program.

If you want to know about CAD software you certainly could bring up a specific question.

I also have another printer coming, the Prusa Mini. I have the MK3 already and it is great, the Mini is supposed to be as good if not better, now that they have the production problems straightened out, we will see it about the middle of January.

i will be very interested in ur experience with the mini especially with regard to mk3. i got my mini end of october and haven’t really experienced lots of the issues others had early on but still not happy with the amount of stringing it produces. it will be great to have someone to compare with especially as i am new to the 3d printer world and not sure what to expect. maybe my expectations were too high lol.  i am sure there r some prusaslicer parameters that can help i have found a few but still not happy. at least it cleans up fairly easily.

@sidehack posted:

Quietman

I also have another printer coming, the Prusa Mini. I have the MK3 already and it is great, the Mini is supposed to be as good if not better, now that they have the production problems straightened out, we will see it about the middle of January.

I spent a little more money  than I intended to on train stuff the last couple of weeks, and told my wife I'd dial back my expectations on my Christmas present. When I found the Mega S for only$220 with a 1 kg spool, it kind of made up my mind for me.

Depending on how far I go with this, a Prusa may end up being in my future.

Last edited by Quietman
@Quietman posted:

Which brings up another thread that would be useful. One on free 3D CAD / modeling software and converters.

I could see a whole array of threads, one each to share experiences with each of the major tools.

I am a journeyman FreeCad user, and would love to have a place to share experiences and skills in that platform. FreeCad is kind of a nightmare--hugely complex, constantly changing, inconsistent interfaces, and buggy. However, it is incredibly powerful and genuinely free. By this I mean, there are no strings attached forbidding commercial use, etc. Very few of the "free" systems have this property. I wanted a system that supported fully-parametric models, has no recurring license fees, was truly free of usage limitations, and runs on a Mac. FreeCad was pretty much the only choice that met all those criteria, so I bit the bullet and dug into it. I am no expert, but I have managed to become reasonably productive.  Any other FreeCad fans out there?

Last edited by Avanti
@stubbygda posted:

i will be very interested in ur experience with the mini especially with regard to mk3. i got my mini end of october and haven’t really experienced lots of the issues others had early on but still not happy with the amount of stringing it produces. it will be great to have someone to compare with especially as i am new to the 3d printer world and not sure what to expect. maybe my expectations were too high lol.  i am sure there r some prusaslicer parameters that can help i have found a few but still not happy. at least it cleans up fairly easily.

I am using 3D Solutech PETG Real Grey, Started with Prusa PETG Parameters and only made a few changes, temperture is 220/215  and bed 85/80 C and using  .15mm or .20 both Quality.

I don't have any major stringing problems, this MK3 has been running 61 day 13 hrs that's 1477 hours with no problems so if the Mini is as good and dependable I'll be pretty happy.

Ray aptly described this as a hobby within a hobby.   I am at the point where I would like to start modeling... but, where to begin?  I'm a programmer... not a CAD guy.  I'm interested in mechanical and architecture (animation/morphing/sculpting is not my thing).  I did the tutorials with TinkerCAD which gave me a primer and then a couple of tutorials with Fusion 360.  Now, which CAD program?  I installed Rhino, AutoCAD, FreeCAD, Blender and others... there are so many!   I decided that I do not want a browser based CAD program.  I do not think it matters greatly which program you use initially... the key is to get started!!!  Blender is what I'm going with.

PLEASE, Create any Topic you would like!@!

Last edited by Dennis-LaRock
@stubbygda posted:

i will be very interested in ur experience with the mini especially with regard to mk3. i got my mini end of october and haven’t really experienced lots of the issues others had early on but still not happy with the amount of stringing it produces. it will be great to have someone to compare with especially as i am new to the 3d printer world and not sure what to expect. maybe my expectations were too high lol.  i am sure there r some prusaslicer parameters that can help i have found a few but still not happy. at least it cleans up fairly easily.

I have a MK3S and get some stringing too. In my (somewhat limited) experience, it's more related to the print than the filament - lots of tall parts next to each other (individual pieces or parts of the same piece) will have stringing in between. There are some test prints and settings you can tweak to dial in your printer. However my advice is to purchase a heat gun and just hit the stringy prints with that after the print is complete. Total game changer!

Hi, glad I ran across this. I have an Ender 3 and AnyCubic Photon. I've printed pieces as small as signal heads for N scale, to pieces to construct my 4'x8' CNC machine. I've done a lot of design work in Fusion 360, some for modeling, some for real-world items.  It's awesome to see an O scale repo being put together.  I don't want to step on anyones toes, but I see two things missing, or clarifications that need to be made with these models.

The submissions in the catalog have the person's name with the picture, however there are 2 Carl's who have contributed.  So, which Carl contributed the "Block and Dwarf Signals". Might be better to keep the member usernames there.  The other thing that is missing is a readme, or a text blurb that should go in the actual repo with each model.  Again, using the "Block and Dwarf Signals", there is no citing of what he used for the post. It would be useful to ask for such information since the model heavily depends on what piece was used there.

Other submissions such as the Bidirectional Signal by Alan, is a single STL. It probably should be broken up into separate components for printing, or a STEP file, rather than an STL should be provided so a user can perform more manipulation to split it apart themselves.  It was also seem that parts of that model could only be printed using a resin printer, based on how the parts and orientations are, using the arm with signal head attached as an example.

I'd make sure as people submit models that they have to describe how it's printed (if it's not obvious), and what other components must be used if they aren't included in the STL packages themselves.

If you need any help, feel free to reach out, I do the 3d printing and design stuff in my spare time, but Linux admin on servers, and web design is my primary job function these days.

@AlanRail posted:

Alan Here: I did break up the signal into parts; never used .step files though perhaps I should?

Hi Alan, I like the part, but the one on the server is a single STL with all the pieces floating in it.  The biggest difference between the STL and STEP is that the STL is basically defines the vertices and surfaces and doesn’t understand the actual geometry , not something that can be edited (easily). A STEP file will define the actual geometry, how it relates and allow it to be pulled apart, remixed, or whatever in programs like Fusion 360 or whatever. Easier than supplying the actual CAD file.

We have encouraged folks to include .stp files with their .stl(s) both in posts in threads and in the *Best Practices* .doc which is in the Repository along side the Catalog.  There are 98 .stp files in the Repository with their associated .stl(s).  We certainly haven't deleted or discouraged anyone from providing STEP files.

Please!!!  By all means, provide STEP(s) with your .STL(s)... they are Welcomed and Encouraged!!!

The easier that we can make this for the end user... especially for the beginner ...the better.  We are all teachers.  The best we can do for our hobby is share our experiences and knowledge.

STEP/.stp:  STEP is a file extension for a 3-D graphic file used by CAD software. STP stands for Standard for the Exchange of Product model data. STP files are used to store 3D image data in an ASCII format, following the standards defined in ISO 10303-21 : Clear Text Encoding of the Exchange Structure.

Last edited by Dennis-LaRock

I have a question about contributing.

I’ve wanted a ballast spreader and found one on thingverse I believe and printed it. I quickly found that it didn’t fit my needs and wouldn’t do what I wanted.

I’ve modified it on tinkercad numerous times and am currently printing my 4th version of it. When I finally get it the way I want it and doing what I need it to do I would like to share it, but it’s technically not my base design and I wouldn’t want to basically plagiarize whoever the original designer is.

What would be the best and basically most morally correct way to share it? That is, if I’m ever truly happy with it. I know they are cheap to buy but it’s been fun messing with it and seeing it come to life.

there are two rights to consider 1) Patent and 2) Copyright.

If the original is patented, then your modification may violate the original owners patent rights; Can't help you without reading the patent. If it was patented the photos must say so and provide the patent number(s) or say "patent pending." To be patent-able the design must be unique and not violate any others' patent or is something that is NOT already existing in the art. (of ballast spreaders} If it is patented, within the patent life you may not make, use or sell.

As to a copyright, you don't need to say anything. A copyright is a unique interpretation of an idea fixed in a medium. So, the idea of a ballast spreader is not copyrightable.

The infringement question to ask is two-fold:

First, is the existing design unique meaning is it copyrightable or not? A lot of these spreaders I have seen are fairly similar.

Second question to ask is whether your modification to the existing interpretation was developed without seeing that interpretation. It sounds like you modified the existing design.

Update: 01/31 3:57pm... Catalog updated  (docx & .pdf)

*109 Print Ready Items* are now available.

Please, help guide other members to this thread for Access & Information about the Repository.  Thank You!

First I would like to think all the more talented people creating the items to print. I was wondering if there was any way to get boms for some the listed items in the catalog. Like the signals there is a tube 4x250mm I believe not listed in the catalog.  BOMS the for the different buildings would be great.

Last edited by Shawn_Chronister

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