*3D printed parts thread*

[HPR Pinball]

Pis en plus il sens bon!!
Je parlais de la pièce en plastique

[amona]

I have no idea who this guy is or where he is from - but he is building an EM pinball machine out of 3d printed parts, relays and micro switches! If you can forgive that fact that he says a player gets 4"lives" and not 3 or 5 balls, it's still a pretty impressive build.

https://www.thingiverse.com/thing:4819886

[World_of_Warships]

Amazing! That's one patient guy to CAD design and print everything..!

[cait001]

I have no idea who this guy is or where he is from - but he is building an EM pinball machine out of 3d printed parts, relays and micro switches! If you can forgive that fact that he says a player gets 4"lives" and not 3 or 5 balls, it's still a pretty impressive build.

https://www.thingiverse.com/thing:4819886

this is insanity and it actually looks fun

[Toeckeder]

Just finished the CADs, who recognizes these?
I will post pics of the finished product when done...

[HPR Pinball]

Ca va sûrement pas sur une vieille bally!

[Mindstorm88]

Just finished the CADs, who recognizes these?
I will post pics of the finished product when done...

Machine a bonbon ??

[World_of_Warships]

Machine à peanuts?!!

[Toeckeder]

Ben oui!

@AMX = Tu ne te plaindras plus d'avoir 3-4 M&M aux peanuts par 30 sous !!!

[Mindstorm88]

Ben oui!

avoir 3-4 M&M aux peanuts par 30 sous !!!

Même problème chez moi, malheureusement pas la même machine que toi ..

[Fifty]

I have no idea who this guy is or where he is from - but he is building an EM pinball machine out of 3d printed parts, relays and micro switches! If you can forgive that fact that he says a player gets 4"lives" and not 3 or 5 balls, it's still a pretty impressive build.

https://www.thingiverse.com/thing:4819886

This is amazing. The white light up drop targets look fantastic. I wonder how they would stand up to real gameplay?

[mrmikeman]

I have no idea who this guy is or where he is from - but he is building an EM pinball machine out of 3d printed parts, relays and micro switches! If you can forgive that fact that he says a player gets 4"lives" and not 3 or 5 balls, it's still a pretty impressive build.

https://www.thingiverse.com/thing:4819886

This is amazing. The white light up drop targets look fantastic. I wonder how they would stand up to real gameplay?

Transparent/light up drop targets have been around for some time. I have one in my WOZ. Holding up just fine.

[mad]

vraiment impressionnent se que vous faite avec c'est imprimante 3D.

[World_of_Warships]

Oui, vraiment cool! Je vais sans doute faire un CAD puis voir si ça donne des résultats.

Est-ce qu'on a un thread pour imprimer sur des plastiques puis couper des pièces au laser?

[Mindstorm88]

Here an idea for 3d printer owner, not only parts can be print , tools too, printed these stencil to help with black circle around inserts.

[Toeckeder]

Shopping my FP2, found out the eject hole shield was broken.

Thanks to the original designer, found the model on thingiverse.

Just reworked the STL a little, mounting holes too large and the groove around the spherical shape too deep for nothing, making it more fragile.
Final on the right side, also thumbs up for PolyWorks Modeler, working an existing STL is not that easy.

Printed with PETG, more robust. No light under it so no need to be translucid.

[necro_nemesis]

That existing .stl is a broken mesh. Easiest solution would likely be with Fusion 360 to convert to solid using Prismatic conversion but it still would require fixing the broken mesh and Prismatic conversion which is a paid feature in Fusion 360.

To get around that for something like this if you just want to fix up a shit broken mesh just enough to get what you want to modify and print it I have found DesignSpark Mechanical (free) able to do a reasonable mesh conversion while fixing broken meshes and in most cases without complaint in the process. You can then modify the solid with it's editing tools and export as .stl to print from. It does a reasonably good job of approximating the facets of the mesh when creating the solid and doesn't insist on you calling the cloud mothership at Autodesk every time you go to use it for a relatively simple job like this.

Pictured here is what DesignSpark arrived at for a solid while not able to arrive at perfectly rounded circles for holes this is largely due to how rough the original .stl was. For demonstration I punched a random larger hole in the lower left corner with a circle draw tool and extruding it through to show it being modified from that solid form. I don't use DS Mechanical for making models from scratch but do for fixing them. It's another free tool in the toolbox you might want to add.

[Toeckeder]

Good to know!

My professional job is being an application specialist for Innovmetric, the software company behind PolyWorks.
PolyWorks Modeler is our reverse engineering solution (not a CAD software, but the CAD software best companion for such tasks). It has a ton of tools for polygonal modeling such has hole filling, subdividing/reducing the number of triangles, model slicing with curves or planes, boundary extrusion, create rolling ball filets, sculpting, etc.
I feel privileged to work with these great tools everyday.

https://www.innovmetric.com/products/polyworks-modeler

Here are the main steps of my workflow:

1- Extract the 4 circles and 1 plane from the model.
Numerically modify the circles diameter and create an offset plane (to the groove depth I<m looking for)

2- To help the model manipulation, subdivide the triangles in these areas (top and bottom) (long narrow triangles sucks)
Before:

After:

3- Reconstruct the mesh in the 4 holes areas (delete, then fill holes, done in 4 clicks)

4- Cut and extrude holes in the model using the 4 new circles of 4mm

5- Select the vertices(triangle end points) at the bottom of the groove, project them into the new plane. (this will literally lift the bottom of the groove)

6- End result is a "Watertight" polygonal model, STL from start to finish that can be exported. Done in less than 10 minutes.
(Note, original .stl was also watertight, not broken)

Modeler also have tools to section a model and create sketches using the outlines. These sketched are using 2D features, dimensions and constraints as you would do in your CAD software. The idea is to create the sketches in Modeler, then complete the job in your CAD software (we have plugins for Catia, NX, Creo, SolidWorks and Inventor). I could have re-created a full prismatic model in SolidWorks with 5-6 sketches, would have take about 1 hour.
The corvette bracket was done with sketches in Modeler + work completed in SolidWorks.

This was my starting point when I did the Corvette for DavidC. We have access to a ton of digitizing/scanning equipment but my coworker did a shitty job...holes and missing data. PolyWorks Modeler magic did it. End result was a nice watertight STL, Solidworks not required.

[necro_nemesis]

Nice write up. The final Corvette part looks ideal.

Similarly if I want to do more customization to an existing design I will often will convert to solid, clean up extra facets and then project faces onto various sketch planes as 2d sketches. If those 2d projected sketches are not precise I will then redraw them with a sketch tool on the projected plane using what's there to approximate the angle and shape. From there I extrude, loft or use what ever applicable solid creation tool from 2d sketch that I require to create a new solid which is now made from dimensionally correct 2d sketches and doesn't have any unwanted artifacts from the initial .stl conversion. From there I split, merge, subtract etc. with the help of other 2d sketches to create the solids that make up a new solid. So basically the original part is completely recreated. As I say I do this in cases where I want to have a proper model to work with but in some instances all really want is something good enough to modify slightly and produce one part and that's where DS Mechanical comes into play.

[AMX]

Ben oui!

@AMX = Tu ne te plaindras plus d'avoir 3-4 M&M aux peanuts par 30 sous !!!

Vieux post mais ben hate d'aller manger des M&M au peanuts chez vous!!!

[AMX]

Et, vraiment impressionnant ce que vous faites!!!

[Toeckeder]

Tu vas vider la machine avec 2 $

[Mindstorm88]

Little upgrade for my Space Station.
Still need colors, fresh off the printer

[Mindstorm88]

Other small upgrade New Whomobile switch cover for Doctor Who

[mad]

super bien fait, beau travail Bruno il est hot..