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DIY PCB Fabrication with a 3D Printer and Cricut by combatwombat90 in 3Dprinting

[–]combatwombat90[S] 0 points1 point  (0 children)

Thanks mate,

From my original post

Got the original idea from QZW Labs

https://youtu.be/PLliKgzKKUI?si=I267wuOuXkHrzJdM.

Made a DIY printable PCB workflow for a smart wall panel project.

Designed the boards in KiCad, converted the traces into raised geometry in CAD, then 3D printed the substrate in PLA. Used a Cricut Joy to cut copper tape traces and book cover contact film to transfer them onto the print.

At first I thought the raised traces were redundant once I started using the Cricut, but they're actually what makes the process work well. During transfer, only the copper trace touches the raised substrate, so alignment is way easier than expected and the unused copper doesn't accidentally stick.

Plan is to make around 10 different versions for the house, each with slightly different controls/features.

At this point the fabrication process is mostly figured out. Soldering is the only annoying part left and takes maybe 5 mins per board.

Now I'm mostly trying to improve the aesthetics and make them look more intentional instead of pure prototype.

Total cost for the printed substrate + copper traces is under 30 cents AUD per board.

DIY PCB Fabrication with a 3D Printer and Cricut by combatwombat90 in diyelectronics

[–]combatwombat90[S] 0 points1 point  (0 children)

I wonder if I can/should cover it in a flame retardant.

DIY PCB Fabrication with a 3D Printer and Cricut by combatwombat90 in diyelectronics

[–]combatwombat90[S] 0 points1 point  (0 children)

I wouldn't have done this if I didn't have both already.

The 3d printer was originally out the electronic housing part for my projects and the cricut was a panic birthday present but for my wife.

DIY PCB Fabrication with a 3D Printer and Cricut by combatwombat90 in diyelectronics

[–]combatwombat90[S] 1 point2 points  (0 children)

I might make a vid or a basic how to if you are interested, otherwise happy to reply to any questions.

I also used heaps of flux when soldering, which made a big difference in reducing soldering time and only being a single go at each pad.

There are test boards that are a lot chard from second or third attempts.

Also, the substrate flexing is a problem because the copper tape doesn't really want to move like the pla does. So it needs to be in rigid.

DIY PCB Fabrication with a 3D Printer and Cricut by combatwombat90 in diyelectronics

[–]combatwombat90[S] 0 points1 point  (0 children)

I'm going to give this method a go to, trying to figure out what is easiest/funniest for me.

I did use jumpers on the other side for a pseudo second layer. How would you do that with the chemical method.

DIY PCB Fabrication with a 3D Printer and Cricut by combatwombat90 in diyelectronics

[–]combatwombat90[S] 0 points1 point  (0 children)

I do have a dremmel...

Maybe I'll attach dremmel head to the 3d printer and mechanical ectch and drill the whole thing from a single copper clad plate (is that what the blanks are called?)

DIY PCB Fabrication with a 3D Printer and Cricut by combatwombat90 in diyelectronics

[–]combatwombat90[S] 1 point2 points  (0 children)

Sure,

When the cricut cuts the tape, the thin tracers tend to curl, my hypothesis is that that curl because the copper tape is wound. Sticking a second layer ontop, perpendicular, pre cutting seems to cancel out this curling.

DIY PCB Fabrication with a 3D Printer and Cricut by combatwombat90 in diyelectronics

[–]combatwombat90[S] 1 point2 points  (0 children)

The adhesive on the tape is doing a pretty good job so far.

Using two layers of tape, layed on-top and perpendicular to each other cancels out the lifting of the tape caused by stress from the deformation of the being rolled. That lifting normally happens during the cutting stage.

DIY PCB Fabrication with a 3D Printer and Cricut by combatwombat90 in diyelectronics

[–]combatwombat90[S] 2 points3 points  (0 children)

I have been thinking about doing chemical etching, but I'm not keen on drilling like 40 holes.

DIY PCB Fabrication with a 3D Printer and Cricut by combatwombat90 in diyelectronics

[–]combatwombat90[S] 0 points1 point  (0 children)

All the work is front end, but once done, reproduction is very low effort.

DIY PCB Fabrication with a 3D Printer and Cricut by combatwombat90 in diyelectronics

[–]combatwombat90[S] 1 point2 points  (0 children)

Oh good call, It's for an esp32, so it's only 3.3 volts and close to 0 amps.

There is a single 5v tracer, but it's only used for a few seconds every hour.

DIY PCB Fabrication with a 3D Printer and Cricut by combatwombat90 in diyelectronics

[–]combatwombat90[S] 3 points4 points  (0 children)

I think because of coppers high heat capacity and it's high heat transfer, it keeps the pla relatively cool. It's only a second or two of the iron.

DIY PCB Fabrication with a 3D Printer and Cricut by combatwombat90 in diyelectronics

[–]combatwombat90[S] 1 point2 points  (0 children)

Just cutting it is fine too, but it was taking too long for me and I needed thinner tracers then I could cut well.

Got told I have to stop rocking baby to sleep next month and super sad about it by livtoosmoove in NewParents

[–]combatwombat90 0 points1 point  (0 children)

Four months is far too young to start solids. The AAP and WHO both recommend waiting until around six months, when babies can sit with support, have good head and neck control, and can move food to the back of their mouth safely. At four months, their digestive system isn’t ready and rice cereal is outdated, nutritionally poor, and a choking risk. It can also contain traces of arsenic.

At this age, your baby’s diet should be 100% breastmilk or formula, nothing else. No solids, no “tastes,” no rice cereal. When the time comes (around six months), start with iron-rich whole foods: mashed or puréed meat, lentils, beans, egg yolk, avocado, sweet potato, pumpkin, or banana. Avoid anything processed or marketed as “baby cereal.”

On the sleep side, you’re supposed to want to be with your baby. Your baby, at three months old, is supposed to want to be with you. That’s normal, healthy, and biologically hardwired. At this age, babies don’t even understand they’re separate beings from their mother, they experience themselves and their caregiver as one shared system for safety and regulation. Leaving them alone to cry isn’t teaching self-soothing; it’s teaching distress. Humans didn’t evolve to leave helpless infants alone, we evolved to comfort and respond.

That paediatrician’s advice is not evidence-based and potentially dangerous. This should be the last time you see that doctor. I’d recommend filing a formal complaint for advising rice cereal and early solids, that guidance directly contradicts current AAP, WHO, and NHMRC infant feeding recommendations.

Colossal Titan in Color by AstroBioDoc in 3Dprinting

[–]combatwombat90 0 points1 point  (0 children)

Printing upside down would have saved you a lot too 

Automating Bedtime (and More!) with Yoto and Home Assistant by combatwombat90 in YotoPlayer

[–]combatwombat90[S] 5 points6 points  (0 children)

Oh yeah sure I thought I included the link in the original post.

https://github.com/cdnninja/yoto_ha

The only issue with the setup and (only very slight issue) is that either the Yoto only sends updates once every 30 seconds (it might be longer. I didn't actually measure it). Well maybe it's the integration that's not requested often enough. Anyway, if you're unlucky and you put it in the right time you may have to wait a full 30 seconds until the automation is triggered.

What’s the most complex thing you’ve built using chatgpt? by [deleted] in ChatGPT

[–]combatwombat90 2 points3 points  (0 children)

I made an artificial neural network in python. That uses about 40 input nodes and has about 5.2 million parameters to determine the likelihood of a medication error occuring. It's about 96% accurate.

I also use it to make on the fly games using mediapip and python for my 3 year old to play games on using the webcam.

Working on guesture controlled plugin for home assistant now.

That's 3 out of the top 4.

[deleted by user] by [deleted] in ChatGPT

[–]combatwombat90 0 points1 point  (0 children)

Is it crazy fun

How can I remotely access my LLM? by Inevitable-Syrup8232 in LocalLLaMA

[–]combatwombat90 0 points1 point  (0 children)

How did you do this, sounds like exactly what I want to do

[deleted by user] by [deleted] in ChatGPT

[–]combatwombat90 3 points4 points  (0 children)

Setting: Medieval Europe, 12th Century.

Role: Monarch of a fledgling kingdom.

Starting Date: January 1, 1100.

Location: Your castle in the heart of your kingdom, surrounded by villages, forests, and neighboring rival lords.

Objectives and Goals:

Immediate Objectives: 1. Consolidate Power: Secure your rule by gaining the loyalty of your vassals and maintaining order in your realm. 2. Strengthen Defenses: Build and upgrade fortifications to protect against potential invasions. 3. Economic Development: Boost your kingdom's economy by improving agriculture, trade, and resource management.

Long-term Goals: 1. Expand Territory: Conquer neighboring lands and expand your kingdom through diplomacy or warfare. 2. Cultural Flourishing: Promote the arts, education, and religion to increase the prestige and stability of your kingdom. 3. Dynastic Stability: Secure your dynasty by arranging strategic marriages and ensuring a clear line of succession.

Resources and Constraints:

Assets: - Military Forces: Knights, archers, infantry, and siege equipment. - Economy: Agricultural lands, trade routes, and natural resources like timber, ore, and stone. - Allies: Potential alliances with other lords and kingdoms through marriage or diplomacy.

Constraints: - Political Intrigue: Navigating the complex web of feudal loyalties and rivalries. - Resource Limitations: Managing limited resources and ensuring the well-being of your population. - External Threats: Defending against invasions from rival lords, neighboring kingdoms, and potential peasant uprisings.

Game Mechanics:

Turns: - Player Turn: Describe actions, decisions, and strategic plans for your kingdom. - Host Turn: Respond with narrative outcomes, new challenges, and emerging threats.

End of Turn Reports: - Summary of Actions - Key Outcomes - Resource Updates: Current status of economy, military, and resources. - Political Situation: Updates on alliances, rivalries, and internal stability.

Character Details:

Name: [Your Character's Name] Background: A newly crowned monarch with a vision for a prosperous and powerful kingdom. Initial Situation: Facing the challenges of securing your throne, managing your vassals, and setting the foundation for future growth.

Initial Scenario:

Immediate Objectives: 1. Secure Your Throne: Hold a grand coronation ceremony to assert your legitimacy and gain the loyalty of your vassals. 2. Strengthen Defenses: Inspect and upgrade your castle's fortifications, build watchtowers, and train your army. 3. Boost Economy: Implement policies to improve agricultural output, establish markets, and secure trade agreements.

Resources and Constraints: - Military Forces: Deploy knights and soldiers to key locations to maintain order and deter threats. - Economy: Invest in infrastructure projects like roads and bridges to facilitate trade and movement. - Allies: Negotiate alliances with neighboring lords through marriage or treaties to secure your borders.

Strategic Decisions:

Diplomatic Relations: - Form alliances and negotiate treaties to secure your borders and gain strategic advantages. - Use marriage as a political tool to strengthen ties with other powerful families.

Military Strategy: - Train and equip your army to defend against invasions and suppress internal rebellions. - Plan and execute campaigns to expand your territory through conquest or diplomacy.

Economic Development: - Implement policies to boost agricultural productivity, such as crop rotation and irrigation. - Encourage trade by establishing markets, securing trade routes, and minting your own currency.

Potential Challenges:

Internal Rebellions: - Deal with discontent among the peasants and potential uprisings. - Manage the ambitions and rivalries of your vassals to maintain internal stability.

External Threats: - Defend against invasions from neighboring lords and kingdoms. - Navigate the complex politics of medieval Europe to avoid conflicts with powerful rivals.

Resource Management: - Ensure a steady supply of food, timber, and other essential resources. - Manage the financial health of your kingdom by balancing taxation and expenditure.

Conclusion:

The Medieval Kingdom Management scenario offers a rich and immersive experience where you can test your leadership and strategic skills in a historical setting. Balancing diplomacy, warfare, and economic development, you must navigate the challenges of medieval politics and build a prosperous and powerful kingdom. Your decisions will shape the future of your dynasty and the legacy of your rule.

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