Printed on a simple bambu A1 , 1/8 scale 650mm

4 servo motors, Arduino nano, Leds, sounds. (included)

Hi everyone,

I'm one of the founders of Faber, and we're building a new desktop SLS 3D printer from the ground up.

Before we lock in key engineering decisions, we'd love to hear from the community.

Whether you're an experienced SLS user, an FDM enthusiast who's always been curious about SLS, or someone who has never considered it before, your perspective is valuable. We're especially interested in understanding what would make SLS practical, accessible and genuinely useful for more people.

We've put together a short survey that takes about 5 minutes to complete. Every response helps us make better engineering and product decisions.

Help shape the future of Desktop SLS

Thanks a lot for your time and feedback!

Hi everyone! Long time lurker, first time poster over here.

So a few weeks ago, it was kind of a perfect storm of three things:

• I finished watching My Dress Up Darling
• I was in the middle of the first cycle of 3D modeling and printing classes I teach at the local community college
• I saw conversations about printing full size props on small printers in a popular cosplay Discord server

I had a couple hours to mess around with 3D printable threads in Fusion 360 one afternoon and the results made me think I was on to something. Now here we are a few weeks down the road, and I just published all of the process to design and print custom-sized, reliable 3D printed threads that:

• print reliably with basic settings on basic printers
• have nice tolerances
• don't need supports
• don't get stuck
• don't break
• can be used with screwdrivers
• can be printed even in PLA

All of this is based off of 3D printing tips, tricks and methods that have been floating around the Internet for years, some still valid, some outdated. On top of that, I went ahead and came up with some of my own.

My biggest tip for print reliability: I trimmed the sides of the threads and print them horizontally with a high vertical resolution (0.12mm always works). Having a trim on both sides also gives just enough room to grab, twist and extract the part with a pair of needle nose pliers if it ever breaks!

My biggest tip for tolerances: I add a negative offset that's a multiple of the Fine print resolution in my slicer on both mating parts. On my slicer and with my A1 Mini that's multiples of 0.12mm. A negative offset of 0.06mm was a little tight, but that might have been because the threaded part was hard to "grip" and didn't have any lubrication.

My biggest tip for fragility: Because the threaded parts are printed sideways and the tolerances are generous, the threads never catch on each other enough to cause major stress. The shearing force is distributed across the whole length of the thread, not its width!

That's it. Oh yeah, and I added a notch both tips of my threaded parts so you can use a screw driver with them.

I shared everything on my website. Dig in, download the test runner sheets I designed, play with it, and let me know what you think!

A Titanium ring that I printed on one of the LPBF metal 3D printers at my company a while ago. We decided to leave the outer surface a raw as-printed finish (with a little etching to brighten it), while the inside was machined and sanded down for a smooth fit. We mostly print industrial tooling/fixturing on these machines (along with the occasional automotive intake manifold or other customer part), so printing jewelry is an interesting change of pace.

[ Removed by Reddit on account of violating the content policy. ]

Hey everyone,

I've been doing some work with orthotic devices and am experimenting with printing ColorFabb Varioshore TPU (the foaming TPU whose properties change with temperature). I'm printing this alongside Bambu Lab PLA Basic on my H2D.

All the strings you see on the print bed and prime tower are from the right nozzle oozing into the nozzle blocker. The photo is of my most recent test print, and things seem to be getting worse before they get better.

Here are a few settings I’ve tweaked that may have led to this madness:

Retraction & Temp Settings:

• Retraction Length: 1.4mm
• Z-hop: 0.4mm (Type: Normal)
• Retraction Speed: 15 mm/s
• Retract on layer change: On
• Wipe while retracting: On (Wipe distance: 5mm)
• Precooling target temp: 155°C
• Nozzle temp: 220°C
• Max Volumetric speed: 4 mm³/s

Wall & Infill Settings:

• Seams: Aligned, Scarf joints on
• Wall generator: Classic
• Wall order: Outer/Inner
• Avoid crossing walls: On
• Wall loops: 3
• Infill: Embedded wall into infill / Infill-wall overlap = 30%
• Shells: 5 top layers, 3 bottom layers
• Other: Detect narrow internal solid infill (On), Detect floating vertical shells (On)

Supports:

• Tree hybrid, 40-degree angle (These remove pretty easily, so they seem to be irrelevant).

The filament was dried for a few hours before printing and is kept running in the dryer during the print.

Let me know if you spot anything that may be causing issues or if you have any advice!

Hi, I am currently pivoting away from the end customer with Gerridaj.com, but I could keep the configurator if there is any demand for it. So I want to ask the community.

My questions:

Would you buy configurable files? How much would you pay compared to a static STL, for example 5 dollars for static versus what price for adjustable?

What kind of models interest you most? Lamps, vases, wall art, functional parts, furniture, or robot programs?

If you are a designer, would you use this to sell your work? Do you worry about customers breaking the model and blaming you?

I am also trying to figure out pricing for the tool itself, whether subscription, pay per download, or one time fee. Any feedback is welcome.

And if you know of other 3D printing communities where this discussion would fit, feel free to share or crosspost.

Would anybody be interested in designing and selling configurable workflows on the platform?

Any help is very appriciated.

Thanks.

I wanted to share a project I've been working on for quite a while: a stepper-driven syringe actuator with a motorized Z-axis.

The original goal was to create a low-cost automatic solder paste dispenser, but the design could be adapted for many other applications that require precise fluid dispensing. The system uses two NEMA 17 stepper motors—one drives the syringe plunger and the other controls the Z-axis movement.

One interesting use is generating vacuum or suction. With a few modifications, it could potentially be used as a simple pick-and-place system for handling small components or other lightweight objects.

This is probably the model I've spent the most time designing and refining, so I'd love to hear what you think and get feedback from the community.

MakerWorld link:
https://makerworld.com/en/models/2969817-stepper-driven-syringe-actuator-z-axis#profileId-3330412

I'd love some support on MakerWorld if you like the project. Thanks for checking it out, and let me know if you have any ideas for improvements or other applications!

Titolo:
Cerco qualcuno che ricrei un copritasto Vimar Linea 31480 per stampa 3D
Testo:
Ciao a tutti,
sto cercando qualcuno che possa ricreare un copritasto Vimar Linea 31480 (1 modulo) partendo dal pezzo originale.
Posso fornire:
foto ad alta risoluzione;
misure precise con calibro;
qualsiasi dettaglio aggiuntivo necessario.
L’obiettivo è ottenere una copia identica all’originale, sia nell’aspetto sia negli incastri, in modo che possa essere stampata in 3D e montata senza modifiche.
Mi servono i file del modello e il file pronto per la stampa.
Successivamente vorrei creare anche versioni personalizzate con simboli incisi o in rilievo (ad esempio il simbolo Vimar S30.302).
Il lavoro è retribuito. Se avete esperienza nella riproduzione di componenti plastici di precisione, scrivetemi in privato con un preventivo o qualche esempio di lavori simili.
Grazie!

I’m looking to get a feel for what folks in manufacturing spaces are actually looking for out of a SLM machine right now. Whether you're running production, prototyping, or developing custom hardware, I'd love to know what boxes a machine needs to tick to actually fit your workflow and budget.

I want to leave this fairly open-ended, but here are a few specific points to kick off the discussion:

Build Volume: What is your sweet spot? Is a 300^3 or 400^3 build volume necessary for the parts you're eyeing, or are you constrained more by machine footprint and powder costs than build envelope?

Budget & Format: Where is the realistic price ceiling for a machine like this in your shop? If a machine hit the $20k to $40k range, would you be willing to look at a high-quality kit format to save on upfront capital, or is a fully assembled, turnkey system a better fit?

Material & Laser Flexibility: Are you looking for a dedicated single-material workhorse (e.g., just Stainless or Aluminum), or is open-parameter architecture a must-have for experimenting and prototyping?

Infrastructure & Safety: What are your biggest hurdles regarding facility integration? Power, footprint, air quality?
What are the biggest pain points keeping you from bringing metal 3D printing in-house right now? Looking forward to hearing your thoughts!

First test of Gerridaj toolpaths on a robotic arm at stoneflower3d
Adaptive extrusion rate has not yet been tested, as the extruder is currently not connected to the control interface. As expected, this leads to issues when printing with varying layer heights. Nevertheless, the generated toolpaths perform well overall.

Full 6-DOF motion is supported, although it is not required for such simple use cases.

We are currently looking for pilot users working with different robotic arm vendors to evaluate and validate the postprocessors. Gerridaj is not limited to additive manufacturing, it can be used for any type of offline machine programming.

If you are interested in exploring potential applications or participating as a pilot user, we would be happy to connect and discuss your use case

Last week, we tested the generation of robot arm toolpaths on a real robot from u/stoneflower3d. After a few tweaks, including setting a custom TCP on the physical robot, everything worked exactly as expected and matched the simulation results.

Non-planar printing and non-uniform layer heights require an extruder interface integrated with our software, so the adaptive extrusion rate could not yet be fully validated.

We are currently looking for additional pilot users with robotic arms from different vendors to test the remaining post-processors.

If you're interested, feel free to reach out here or visit gerridaj.com.

A fun heat exchanger that my company 3D printed for a Formula Student team recently. This was printed on one of our LPBF machines in Alsi10Mg, and uses a spiral outer loop to circulate oil and a central channel for coolant. This specific heat exchanger sees relatively low thermal loads, so the large central channel is designed to transfer just enough heat without adding unnecessary flow restriction to the rest of the coolant loop.

The fittings are all npt, and were trimmed to final size with a tap after printing. The thread profile was roughed in during printing so that we could limit cutting forces on the thin aluminum after printing so that the part would not get damaged.

Happy to answer any questions that I can about the printing process or (what I am allowed to) about the part design itself.

Gerridaj was created with the long-term goal of controlling any machine. The next major milestone is robotic arms, and the Digital Twin is already working successfully.

The vision is to build a vendor-independent, parametric robot control platform that can simulate and control virtually any robot, provided its post-processor is open or can be reverse-engineered.

Key capabilities include:

• Vendor-independent robot programming
• Parametric robot control
• Digital Twin simulation
• Offline programming
• Near Real-time robot control
• Collision detection and avoidance
• Path planning and optimization

Ultimately, Gerridaj aims to become a universal machine-control layer.

If you have a robotic arm and would like to be among the first to test these capabilities, I'd love to hear from you.

I am making a full scale / life sized human from 7 different 3d prints. i was recommended to model in some way to join the different pieces together, but do not want to do that lol. i do intend to use an adhesive/chemical bond to adhere the different parts together. is it necesarry that i also model in physical tabs/dowls/connections?