RevSpace - User contributions [en-gb]

39C3 Tickets

2025-10-17T21:12:27Z

Mala:

{{Project
|Name=39C3 Tickets
|Status=Initializing
|Contact=Board
}}

* https://events.ccc.de/en/2025/10/16/39c3-presale-modus-operandi/
* https://events.ccc.de/congress/2025/infos/startpage.html
* https://tickets.events.ccc.de/39c3/

Open sale after voucher phase:
* 2025-11-08, Saturday, 11:00 Uhr (CET)
* 2025-11-17, Monday, 20:00 Uhr (CET)

== Status ==

* We're starting this page.
* Signup possible; read instructions below.
* We have not received the vouchers from the CCC yet.

A log of datetimes, because everyone's asking when things will happen. We don't know, we haven't figured out the logic yet.

(Times intentionally obfuscated.)

* 2025-10-17 4:xx - confirmed group info for 39c3 presale

== Tickets ==

To buy a ticket through RevSpace,

# Append your entry to the appropriate table below. One row per ticket. "+1" etc. will be removed, because the voucher workflow can't accommodate that. Add your +1 to the "Friends" table instead; again, one row per ticket.
#* Keep the "Money received" and "Ticket ordered" columns to "No". A RevSpace board member will update these.
# Pay the '''exact and [https://tickets.events.ccc.de/39c3/ correct] amount''' to NL18ABNA0887700780 of <tt>Revelation Space</tt>, with your nickname and the text "39c3 ticket" in the description field.
#* If the amount is not enough, we will not order your ticket. If it is too much, we will keep the rest as a donation.
#* Note: this is a different account than for your monthly contribution, and it is also completely unrelated to RevBank.
#* If you find out that you made a mistake, like if you forgot your name in the description, please contact board@revspace.nl
# We will '''try''' to buy a ticket on your behalf on the 38C3 ticket site, pay the money to the CCC IBAN, and wait for the next round of vouchers.
# First come, first served, but only if you have added your entry to the table AND paid the exact and correct amount.
# RevSpace participants get precedence over friends, one ticket per participant.
# If a participants has many friends who want tickets, we will arbitrarily give priority to other participants to keep things somewhat fair :)
# After the tickets are distributed by the CCC (shortly before the event), we will send it to your email address known to us.
# If we couldn't buy your ticket during the voucher phase, we will return the money to the same IBAN it came from. Don't cancel your bank account during these weeks :)

==== Revspace Participants ====
{|class=wikitable
|-
! Name !! Ticket type (Regular, Supporter, CCC member) || Money received || Ticket ordered || Mode de transport
|-
| Chris_ty || Regular || Yes || No || Train
|-
| Peetz0r || Regular || Yes || No || Flixbus, probably
|-
| Orange_Murker || Regular || Yes || No || Car
|-
| Eloy || Regular || No || No || Train
|-
| Wheeze_NL || Regular || No || No || Car
|-
| cmpxchg || Regular || No || No || Car
|-
| brainsmoke || Regular || No || No || Train
|-
| qguv || Regular || No || No || Train
|-
| Mala || Up-and-coming ticket || No || No || Train
|}


==== Friends ====

Same procedure as for participants, but note: '''we will send your ticket to the RevSpace participant''' so only use this if you trust us (to buy your ticket) and them (to forward your ticket to you).

{|class=wikitable
|-
! Name !! Friend of || Ticket type (Regular, Supporter, CCC member) || Money received || Ticket ordered || Mode de transport
|-
| Zoe || Mala || Up-and-coming ticket || No || No || Train
|-
| Jasmina || Mala || Regular || No || No || Train
|}


=== Tickets for sale ===

== Carpool ==
=== Seats available ===
{|class=wikitable
|-
! Name !! Capacity (seats) || Capacity (luggage) || Fuel type || Fuel economy || Costs || Destination || Parking || Arrival || Leave || Other
|-
| You? || # || # || # || # || # || # || Somewhere in Hamburg.. || ? dec || ? dec/jan || #
|-
|}

=== Seats needed ===
{|class=wikitable
|-
! Name !! Luggage requirements || Driving license || Desired arrival || Desired leave
|-
| You || 20 heavy crates || Recently revoked || 27 dec or earlier || 30 dec or later
|-
|}

=== Seats taken ===
{|class=wikitable
|-
! Name !! Seats
|-
|}

== Procedure ==

For board members, but public because there's no reason to keep it secret and it's useful to have everything in one place.



# Wiki-wijzigingen van de afgelopen dag bekijken en fouten verbeteren. Dingen om op te letten: nieuwe inschrijvingen alleen ''onderaan'' de tabel, deelnemers moeten de boolean kolommen niet wijzigen, extra instructies zoals "+1" etc verwijderen.
# Betalingen van de afgelopen dag bekijken, en op de wiki de bijbehorende "Money received" op "Yes" zetten '''als het bedrag klopt'''.
# Per voucher 1 ticket bestellen: eerst deelnemers, dan vrienden. Let op het soort ticket.
#* Je kunt meerdere vouchers in 1 bestelling gebruiken, maar je moet steeds eerst een vouchercode opgeven, en dan kun je 1 ticket kiezen, daarna de volgende vouchercode, en weer 1 ticket, etc.
# Per bestelde ticket de bijbehorende kolom op "Yes" zetten en het totaal aantal tickets onder "Status" updaten.
# Bij het bestellen, board@revspace.nl opgeven als adres, ook als adres waar de volgende voucher naartoe moet. '''Spelling controleren, bij fout mailadres raakt de voucher kwijt!'''

HotplateSMDSolderingWorkshop

2025-10-16T12:29:55Z

Mala:

{{Event
|Name=Hotplate SMD Soldering Workshop
|URL=[[HotplateSMDSolderingWorkshop]]
|DateStart=2025-10-18 12:00
|DateEnd=2025-10-18 18:00
|Contact=The0
|Info=Using a stencil, solder paste and a hot-plate to reflow-solder SMD components
|InfoLocation=Revspace
|InfoOpen=We're open from 2025-10-18 11:35
|InfoTicket=Costs depend on what you make - see description
|InfoSignup=Add yourself to the participant list, drop a note in the Forum or contact The0
}}

Using a stencil, solder paste and a hot-plate to reflow-solder SMD components

== About this workshop ==

=== Intro ===

Surface Mounted Devices (SMDs) are small compared to Through Hole (TH) electronic components, and some electronics hobbyists find them difficult to work with: difficult to see and handle, when you sneeze, you loose them and you can not easily use them on 2.54mm raster prototyping boards.
On the other hand, SMD devices allow much more lightweight and compact projects,are most often much cheaper than TH variants, and sometimes there simply ''are'' no TH variants available of a component, requiring the use of break-out or adapter boards - both kludgy and expensive.
Also, Printed Circuit Board (PCB) prototype manufacturing prices have become much lower, CAD tools to design them have become more accessible to hobbyists, and a proper PCB is much easier, reliable and often faster to assemble than the identical circuit on a 2.54mm raster prototyping boards - especially when you make a (small) series of the same board. So, if your hobby-elecronics work-queue is long enough to wait 2 weeks for PCBs to arrive, NOT using 2.54mm raster prototyping boards and TH components makes sense and may save time and money.
The question then becomes: how can you deal - in a hobby context - with SMD components that are difficult to see handle, and that you loose when you sneeze.

=== Beginners ===

If you are an absolute beginner, you will make a badge during this workshop. The badge will take about one hour (more if a lot of people participate). It can be done much quicker. The record time is 12 minutes.

The badge workshop uses a workflow that alleviates some of the difficulties using tricks, (simple) tools, physics and appropriate materials.

Instead of solder wire, you will use solder paste to solder. You will apply the solder paste to specific areas of the PCB using a stencil. While we are doing this some physical properties of the solder paste, the metal and flux it contains and the properties of the materials in the PCB will be discussed and explained how this helps the soldering process.

Next we will use a mirror and tweezers to place the SMD components on the PCB in their correct position and orientation, with an explanation of tricks, tools, rituals and environmental factors that make this more enjoyable. In addition, while we are doing this, the function of the electronics components will be briefly explained and what to watch out for.

After we have finished placing the SMD components, the assembled PCB will be "baked" on a stove. Again, there are a few do's and dont's, but in general this part is quick, and somewhat "magical" if this is the first time you see reflow soldering in action.

If necessary, small problems will be fixed, a battery holder attached using a normal soldering iron, and the badge will be tested. Success rate is almost 100%

Finally you will return the tools, discard your garbage, clean-up your workspace and wash your hands.

=== Experienced ===

If you have some experience with the workflow and can work independently, you may opt to make a game. This will take about two hours. It can be done much quicker. The record times is 41 minutes.

If you want to make the game, it is assumed that you have worked with solder paste and a stencil before. You may pick up a few tricks, but there is less time for explanation.

After finishing you will return the tools, discard your garbage, clean-up your workspace and wash your hands.

=== Warnings ===

During this workshop you may come into contact with potentially harmful materials and tools like lead, flux and soldering equipment. Please,
* Do NOT eat or drink during the workshop UNLESS you wash your hands with soap first.
* Do NOT pick your nose, ears or rub your eyes during the workshop UNLESS you wash your hands with soap first.
* Do NOT go to the toilet during the workshop UNLESS you wash your hands with soap first.
* DO wash your hands with soap AFTER the workshop
* When using pliers to cut component leads, HOLD the wire-end you are cutting to prevent it from being launched at someone or something
* Be careful with the stove. If you touch the hot stove your hand, it may stick to it. This can be painful and may require an emergency room visit
* In general: treat tools (litteral and figurative) with respect - "accidents" can be painful

== About the Projects ==

During the workshop you will make either a badge or a 'blocktris' game. The badge contains a ''larger variety'' of different components. The game contains a ''larger number'' of components. Neither is very difficult to make, but I consider the badge better for beginners: you learn more, and it costs less.

The workshop can also be fun for more experienced people: how quickly can you make a badge or a game, and how well does it look? (hint: rework must be avoided). The current record times for succesful hotplate reflow soldering are 12 minutes for a badge and 41 minutes for the game. The record time for succesful hand soldering the badge is 21 minutes. So far no one has even attempted to hand-solder the game.

=== The Badge ===
Contains 24 blinking RGB LEDs, various support components, a microcontroller and you can actually write your name on it.

[[File:hackwinkelbadge.jpeg|thumb|alt=Badge image|image of the hackwinkel badge]]

You can see it in action in [[https://hackwinkel.nl/tag.mp4 this video]]

Both [https://github.com/hackwinkel/tag-hardware | hardware] and [https://github.com/hackwinkel/tag-software | software] of the badge are MIT licensed open source.

=== The 'blocktris' game ===

The game contains 200 RGB LEDs in an array of 20 x 10 pixels controlled by an ESP32-C3 microcontroller module, ideal for playing 'blocktris'.

[[File:blocktris.jpeg|thumb|alt=Blocktris game image|Image of the blocktris game]]

You can see it in action in [[https://hackwinkel.nl/blocktris.mp4 this video]]

Both [https://github.com/hackwinkel/10x20_LED_screen | hardware software] of the game are BSD 3-Clause licensed open source.

== Costs of this workshop ==

The Costs depend on what you do:
* Badge: 0 euro + a voluntary donation to the space each
* Game: 8 euro + a voluntary donation to the space each

== Participating ==

=== general notes ===

If you want to join the workshop, please write your name in the table below noting what you would like to make (badge and/or game). '''Add more lines if necessary. Depending of the number of people, we can do multiple sessions'''

Doors open 11:35, first session start: 12:00, last session start: 16:00

'''Note:''' The "ideal" number of participants per session depends: Beginners/kids (with adult supervision): 5-10, People with some prior experience working with stencils, solder paste and a hot-plate: ~15, Experts: 20 (tools bottleneck). The maximum for a session so far was 42, and that was only possible because there were lots of experts helping others out, but the tooling (stencil and hotplate) bottleneck resulted in an overrun of ~ 2 hours.
'''If this is your first time working with stencils, solder paste and a hot-plate OR if you are younger than 14 OR if you have never done any soldering before, put this in the remark'''s - it is definitely not a problem, but affects how the workshop flows.

=== Participant list ===
{| class="wikitable"
|+ Date Poll
|-
! # || name/nick !! 2025-10-18 !! What || remark
|-
| 0 || The0 || Yes || Both || Organizer
|-
| 1 || Host? || || Example || Example
|-
| 2 || Wheeze_NL || No || Badge || After 14:00
|-
| 3 || Juerd || Yes || Badge || After 14:00
|-
| 4 || Oops0 || Yes || Badge || Absolute beginner, done SMD once for the n-teller - Will co-host: Open up the space around 11:30 and set out materials and equipment
|-
| 5 || Oops1 || Yes || Game || Absolute beginner (under 14), only TH experience - from noon
|-
| 6 || BigMistake || Yes || Both || Beginner
|-
| 7 || noopwafel || Yes || Game || -
|-
|
|-
| 9 || Mystery || Yes || Badge || Complete beginner
|-
| 10 || Boots || Yes || Game || All SMD experience known by The0
|-
| 11 || miniboots || Yes || Game || <14 (9)
|-
| 12 || u103 || Yes ||Game || dno
|-
| 13 || jubo || Yes || Badge || Soldered before
|-
| 14 || JuKi || Yes|| Game || yes
|-
| 15 || Ries || Yes || Badge || Soldered before
|-
| 16 || bamidiscus || Yes || Game || Experienced, up for the lead-free challenge
|-
| 17 || Petr S0 (guest of Oops) || Yes || Game || Experienced
|-
| 18 || Petr S1 (guest of Oops) || Yes || Game || Complete beginner, under 14 - from noon
|-
| 19 || Eloy || Yes || Game || Have to leave 17:30
|-
| 42 || Example || Example || Example || Example
|}

== What if... ==

=== You can not add your name to the participant list ===

Please drop a line with your details in the [https://forum.revspace.nl/t/interest-in-a-hotpate-smd-reflow-soldering-workshop/702 | relevant forum topic]

If you can't, please get in touch with the organizer (The0), for instance on IRC (OFTC)

=== You put your name on the list but can't come ===

Shit happens. No problem, do nothing. Maybe see you next time.

=== You only noticed this workshop at a late date ===

Try getting in touch, and we may work out something. If you just show up and it is busy, then you may not be able to join. If there are places available: FCFS

=== Your badge or game doesn't work ===

You will be the first. We may try to fix it, but no refunds

HotplateSMDSolderingWorkshop

2025-10-16T12:29:31Z

Mala: Removed myself because i cannot attend sadly enough

{{Event
|Name=Hotplate SMD Soldering Workshop
|URL=[[HotplateSMDSolderingWorkshop]]
|DateStart=2025-10-18 12:00
|DateEnd=2025-10-18 18:00
|Contact=The0
|Info=Using a stencil, solder paste and a hot-plate to reflow-solder SMD components
|InfoLocation=Revspace
|InfoOpen=We're open from 2025-10-18 11:35
|InfoTicket=Costs depend on what you make - see description
|InfoSignup=Add yourself to the participant list, drop a note in the Forum or contact The0
}}

Using a stencil, solder paste and a hot-plate to reflow-solder SMD components

== About this workshop ==

=== Intro ===

Surface Mounted Devices (SMDs) are small compared to Through Hole (TH) electronic components, and some electronics hobbyists find them difficult to work with: difficult to see and handle, when you sneeze, you loose them and you can not easily use them on 2.54mm raster prototyping boards.
On the other hand, SMD devices allow much more lightweight and compact projects,are most often much cheaper than TH variants, and sometimes there simply ''are'' no TH variants available of a component, requiring the use of break-out or adapter boards - both kludgy and expensive.
Also, Printed Circuit Board (PCB) prototype manufacturing prices have become much lower, CAD tools to design them have become more accessible to hobbyists, and a proper PCB is much easier, reliable and often faster to assemble than the identical circuit on a 2.54mm raster prototyping boards - especially when you make a (small) series of the same board. So, if your hobby-elecronics work-queue is long enough to wait 2 weeks for PCBs to arrive, NOT using 2.54mm raster prototyping boards and TH components makes sense and may save time and money.
The question then becomes: how can you deal - in a hobby context - with SMD components that are difficult to see handle, and that you loose when you sneeze.

=== Beginners ===

If you are an absolute beginner, you will make a badge during this workshop. The badge will take about one hour (more if a lot of people participate). It can be done much quicker. The record time is 12 minutes.

The badge workshop uses a workflow that alleviates some of the difficulties using tricks, (simple) tools, physics and appropriate materials.

Instead of solder wire, you will use solder paste to solder. You will apply the solder paste to specific areas of the PCB using a stencil. While we are doing this some physical properties of the solder paste, the metal and flux it contains and the properties of the materials in the PCB will be discussed and explained how this helps the soldering process.

Next we will use a mirror and tweezers to place the SMD components on the PCB in their correct position and orientation, with an explanation of tricks, tools, rituals and environmental factors that make this more enjoyable. In addition, while we are doing this, the function of the electronics components will be briefly explained and what to watch out for.

After we have finished placing the SMD components, the assembled PCB will be "baked" on a stove. Again, there are a few do's and dont's, but in general this part is quick, and somewhat "magical" if this is the first time you see reflow soldering in action.

If necessary, small problems will be fixed, a battery holder attached using a normal soldering iron, and the badge will be tested. Success rate is almost 100%

Finally you will return the tools, discard your garbage, clean-up your workspace and wash your hands.

=== Experienced ===

If you have some experience with the workflow and can work independently, you may opt to make a game. This will take about two hours. It can be done much quicker. The record times is 41 minutes.

If you want to make the game, it is assumed that you have worked with solder paste and a stencil before. You may pick up a few tricks, but there is less time for explanation.

After finishing you will return the tools, discard your garbage, clean-up your workspace and wash your hands.

=== Warnings ===

During this workshop you may come into contact with potentially harmful materials and tools like lead, flux and soldering equipment. Please,
* Do NOT eat or drink during the workshop UNLESS you wash your hands with soap first.
* Do NOT pick your nose, ears or rub your eyes during the workshop UNLESS you wash your hands with soap first.
* Do NOT go to the toilet during the workshop UNLESS you wash your hands with soap first.
* DO wash your hands with soap AFTER the workshop
* When using pliers to cut component leads, HOLD the wire-end you are cutting to prevent it from being launched at someone or something
* Be careful with the stove. If you touch the hot stove your hand, it may stick to it. This can be painful and may require an emergency room visit
* In general: treat tools (litteral and figurative) with respect - "accidents" can be painful

== About the Projects ==

During the workshop you will make either a badge or a 'blocktris' game. The badge contains a ''larger variety'' of different components. The game contains a ''larger number'' of components. Neither is very difficult to make, but I consider the badge better for beginners: you learn more, and it costs less.

The workshop can also be fun for more experienced people: how quickly can you make a badge or a game, and how well does it look? (hint: rework must be avoided). The current record times for succesful hotplate reflow soldering are 12 minutes for a badge and 41 minutes for the game. The record time for succesful hand soldering the badge is 21 minutes. So far no one has even attempted to hand-solder the game.

=== The Badge ===
Contains 24 blinking RGB LEDs, various support components, a microcontroller and you can actually write your name on it.

[[File:hackwinkelbadge.jpeg|thumb|alt=Badge image|image of the hackwinkel badge]]

You can see it in action in [[https://hackwinkel.nl/tag.mp4 this video]]

Both [https://github.com/hackwinkel/tag-hardware | hardware] and [https://github.com/hackwinkel/tag-software | software] of the badge are MIT licensed open source.

=== The 'blocktris' game ===

The game contains 200 RGB LEDs in an array of 20 x 10 pixels controlled by an ESP32-C3 microcontroller module, ideal for playing 'blocktris'.

[[File:blocktris.jpeg|thumb|alt=Blocktris game image|Image of the blocktris game]]

You can see it in action in [[https://hackwinkel.nl/blocktris.mp4 this video]]

Both [https://github.com/hackwinkel/10x20_LED_screen | hardware software] of the game are BSD 3-Clause licensed open source.

== Costs of this workshop ==

The Costs depend on what you do:
* Badge: 0 euro + a voluntary donation to the space each
* Game: 8 euro + a voluntary donation to the space each

== Participating ==

=== general notes ===

If you want to join the workshop, please write your name in the table below noting what you would like to make (badge and/or game). '''Add more lines if necessary. Depending of the number of people, we can do multiple sessions'''

Doors open 11:35, first session start: 12:00, last session start: 16:00

'''Note:''' The "ideal" number of participants per session depends: Beginners/kids (with adult supervision): 5-10, People with some prior experience working with stencils, solder paste and a hot-plate: ~15, Experts: 20 (tools bottleneck). The maximum for a session so far was 42, and that was only possible because there were lots of experts helping others out, but the tooling (stencil and hotplate) bottleneck resulted in an overrun of ~ 2 hours.
'''If this is your first time working with stencils, solder paste and a hot-plate OR if you are younger than 14 OR if you have never done any soldering before, put this in the remark'''s - it is definitely not a problem, but affects how the workshop flows.

=== Participant list ===
{| class="wikitable"
|+ Date Poll
|-
! # || name/nick !! 2025-10-18 !! What || remark
|-
| 0 || The0 || Yes || Both || Organizer
|-
| 1 || Host? || || Example || Example
|-
| 2 || Wheeze_NL || No || Badge || After 14:00
|-
| 3 || Juerd || Yes || Badge || After 14:00
|-
| 4 || Oops0 || Yes || Badge || Absolute beginner, done SMD once for the n-teller - Will co-host: Open up the space around 11:30 and set out materials and equipment
|-
| 5 || Oops1 || Yes || Game || Absolute beginner (under 14), only TH experience - from noon
|-
| 6 || BigMistake || Yes || Both || Beginner
|-
| 7 || noopwafel || Yes || Game || -
|-
|
|-
| 9 || Mala || Yes || Badge || Complete beginner
|-
| 10 || Boots || Yes || Game || All SMD experience known by The0
|-
| 11 || miniboots || Yes || Game || <14 (9)
|-
| 12 || u103 || Yes ||Game || dno
|-
| 13 || jubo || Yes || Badge || Soldered before
|-
| 14 || JuKi || Yes|| Game || yes
|-
| 15 || Ries || Yes || Badge || Soldered before
|-
| 16 || bamidiscus || Yes || Game || Experienced, up for the lead-free challenge
|-
| 17 || Petr S0 (guest of Oops) || Yes || Game || Experienced
|-
| 18 || Petr S1 (guest of Oops) || Yes || Game || Complete beginner, under 14 - from noon
|-
| 19 || Eloy || Yes || Game || Have to leave 17:30
|-
| 42 || Example || Example || Example || Example
|}

== What if... ==

=== You can not add your name to the participant list ===

Please drop a line with your details in the [https://forum.revspace.nl/t/interest-in-a-hotpate-smd-reflow-soldering-workshop/702 | relevant forum topic]

If you can't, please get in touch with the organizer (The0), for instance on IRC (OFTC)

=== You put your name on the list but can't come ===

Shit happens. No problem, do nothing. Maybe see you next time.

=== You only noticed this workshop at a late date ===

Try getting in touch, and we may work out something. If you just show up and it is busy, then you may not be able to join. If there are places available: FCFS

=== Your badge or game doesn't work ===

You will be the first. We may try to fix it, but no refunds

HotplateSMDSolderingWorkshop

2025-09-10T14:26:19Z

Mala:

Using a stencil, solder paste and a hot-plate to reflow-solder SMD components

== About this workshop ==

=== Intro ===

Surface Mounted Devices (SMDs) are small compared to Through Hole (TH) electronic components, and some electronics hobbyists find them difficult to work with: difficult to see and handle, when you sneeze, you loose them and you can not easily use them on 2.54mm raster prototyping boards.
On the other hand, SMD devices allow much more lightweight and compact projects,are most often much cheaper than TH variants, and sometimes there simply ''are'' no TH variants available of a component, requiring the use of break-out or adapter boards - both kludgy and expensive.
Also, Printed Circuit Board (PCB) prototype manufacturing prices have become much lower, CAD tools to design them have become more accessible to hobbyists, and a proper PCB is much easier, reliable and often faster to assemble than the identical circuit on a 2.54mm raster prototyping boards - especially when you make a (small) series of the same board. So, if your hobby-elecronics work-queue is long enough to wait 2 weeks for PCBs to arrive, NOT using 2.54mm raster prototyping boards and TH components makes sense and may save time and money.
The question then becomes: how can you deal - in a hobby context - with SMD components that are difficult to see handle, and that you loose when you sneeze.

=== Beginners ===

If you are an absolute beginner, you will make a badge during this workshop. The badge will take about one hour (more if a lot of people participate). It can be done much quicker. The record time is 12 minutes.

The badge workshop uses a workflow that alleviates some of the difficulties using tricks, (simple) tools, physics and appropriate materials.

Instead of solder wire, you will use solder paste to solder. You will apply the solder paste to specific areas of the PCB using a stencil. While we are doing this some physical properties of the solder paste, the metal and flux it contains and the properties of the materials in the PCB will be discussed and explained how this helps the soldering process.

Next we will use a mirror and tweezers to place the SMD components on the PCB in their correct position and orientation, with an explanation of tricks, tools, rituals and environmental factors that make this more enjoyable. In addition, while we are doing this, the function of the electronics components will be briefly explained and what to watch out for.

After we have finished placing the SMD components, the assembled PCB will be "baked" on a stove. Again, there are a few do's and dont's, but in general this part is quick, and somewhat "magical" if this is the first time you see reflow soldering in action.

If necessary, small problems will be fixed, a battery holder attached using a normal soldering iron, and the badge will be tested. Success rate is almost 100%

Finally you will return the tools, discard your garbage, clean-up your workspace and wash your hands.

=== Experienced ===

If you have some experience with the workflow and can work independently, you may opt to make a game. This will take about two hours. It can be done much quicker. The record times is 41 minutes.

If you want to make the game, it is assumed that you have worked with solder paste and a stencil before. You may pick up a few tricks, but there is less time for explanation.

After finishing you will return the tools, discard your garbage, clean-up your workspace and wash your hands.

=== Warnings ===

During this workshop you may come into contact with potentially harmful materials and tools like lead, flux and soldering equipment. Please,
* Do NOT eat or drink during the workshop UNLESS you wash your hands with soap first.
* Do NOT pick your nose, ears or rub your eyes during the workshop UNLESS you wash your hands with soap first.
* Do NOT go to the toilet during the workshop UNLESS you wash your hands with soap first.
* DO wash your hands with soap AFTER the workshop
* When using pliers to cut component leads, HOLD the wire-end you are cutting to prevent it from being launched at someone or something
* Be careful with the stove. If you touch the hot stove your hand, it may stick to it. This can be painful and may require an emergency room visit
* In general: treat tools (litteral and figurative) with respect - "accidents" can be painful

== About the Projects ==

During the workshop you will make either a badge or a 'blocktris' game. The badge contains a ''larger variety'' of different components. The game contains a ''larger number'' of components. Neither is very difficult to make, but I consider the badge better for beginners: you learn more, and it costs less.

The workshop can also be fun for more experienced people: how quickly can you make a badge or a game, and how well does it look? (hint: rework must be avoided). The current record times for succesful hotplate reflow soldering are 12 minutes for a badge and 41 minutes for the game. The record time for succesful hand soldering the badge is 21 minutes. So far no one has even attempted to hand-solder the game.

=== The Badge ===
Contains 24 blinking RGB LEDs, various support components, a microcontroller and you can actually write your name on it.

[[File:hackwinkelbadge.jpeg|thumb|alt=Badge image|image of the hackwinkel badge]]

You can see it in action in [[https://hackwinkel.nl/tag.mp4 this video]]

Both [https://github.com/hackwinkel/tag-hardware | hardware] and [https://github.com/hackwinkel/tag-software | software] of the badge are MIT licensed open source.

=== The 'blocktris' game ===

The game contains 200 RGB LEDs in an array of 20 x 10 pixels controlled by an ESP32-C3 microcontroller module, ideal for playing 'blocktris'.

[[File:blocktris.jpeg|thumb|alt=Blocktris game image|Image of the blocktris game]]

You can see it in action in [[https://hackwinkel.nl/blocktris.mp4 this video]]

Both [https://github.com/hackwinkel/10x20_LED_screen | hardware software] of the game are BSD 3-Clause licensed open source.

== Costs of this workshop ==

The Costs depend on what you do:
* Badge: 0 euro + a voluntary donation to the space each
* Game: 8 euro + a voluntary donation to the space each

== Planning / Poll ==

=== general notes ===

First of all we need to select a date, but also get some idea who may come and how much material is necessary.

If you want to join the workshop, please indicate your preferences for dates in the table below, and what you would like to make (badge and/or game). '''Add more lines if necessary. Depending of the number of people, we can do multiple sessions'''

Doors open 11:35, first session start: 12:00, last session start: 16:00

'''Note:''' The "ideal" number of participants per session depends: Beginners/kids (with adult supervision): 5-10, People with some prior experience working with stencils, solder paste and a hot-plate: ~15, Experts: 20 (tools bottleneck). The maximum for a session so far was 42, and that was only possible because there were lots of experts helping others out, but the tooling (stencil and hotplate) bottleneck resulted in an overrun of ~ 2 hours.
'''If this is your first time working with stencils, solder paste and a hot-plate OR if you are younger than 14 OR if you have never done any soldering before, put this in the remark'''s - it is definitely not a problem, but affects how the workshop flows.

=== (prospective) participant list ===
{| class="wikitable"
|+ Date Poll
|-
! # || name/nick !! 2025-10-18 !! 2025-10-25 !! What || remark
|-
| 0 || The0 || Yes ||Yes || Both || Organizer
|-
| 1 || Host? || Maybe || No || Example || Example
|-
| 2 || Wheeze_NL || No || No || Badge || After 14:00
|-
| 3 || Juerd || Yes || No || Badge || After 14:00
|-
| 4 || Oops || Yes || Maybe || Badge || Absolute beginner, done SMD once for the n-teller
|-
| 5 || Oops1 || Yes || Maybe || Badge || Absolute beginner (under 14), only TH experience
|-
| 6 || BigMistake || Yes || Yes || Both || Beginner
|-
| 7 || noopwafel || Yes || Yes || Game || -
|-
| 8 || Mystery || Yes || No || Badge || Beginner
|-
| 9 || Mala || Yes || No || Badge || Complete beginner
|-
| 10 || Example || Example || Example || Example || Example
|-
| 11 || Example || Example || Example || Example || Example
|-
| 12 || Example || Example || Example || Example || Example
|}

== What if... ==

=== You can not add your name to the participant list ===

Please drop a line with your details in the [https://forum.revspace.nl/t/interest-in-a-hotpate-smd-reflow-soldering-workshop/702 | relevant forum topic]

If you can't, please get in touch with the organizer (The0), for instance on IRC (OFTC)

=== You put your name on the list but can't come ===

Shit happens. No problem, do nothing. Maybe see you next time.

=== You only noticed this workshop at a late date ===

Try getting in touch, and we may work out something. If you just show up and it is busy, then you may not be able to join. If there are places available: FCFS

=== Your badge or game doesn't work ===

You will be the first. We may try to fix it, but no refunds