Filament Splicer

Project cancelled, click here to read why
The idea for Filament Splicer was born about a month after our Ultimaker 3D Printer was build. As cool as 3D Printing is, printing in one color is boring.

Users of normal, single head FFF/FDM printers are stuck with single color unless they join filament pieces together to produce one multi-colored string. It is not very complicated but process is quite awkward and you will get fed up very quickly.

If you want to have proper, stable filament join you need to have right temperature on the tip of plastic when you connect pieces together. This is hard to achieve when you use some arbitrary heat source. You either underheat or overheat and burn the plastic. Using print head of your printer is best 'ad-hoc' solution but it leaves quite a mess on it, you cannot print when you splice and plastic which is in the head slowly gets burned while you take time to splice your string.

Then, of course there is issue with forming of the joint, carpet knife and fingers where our favorite tools for that job but it took quite a long time to form each joint.

We have had our share of failed prints due to broken joints / stuck filament and finally decided to create a device which will help to splice filament. Initial idea was to create fully automated unit: you place filament ends on copper block, close it, push the button and viola - you have your joint. That was the theory.... In practice this is impossible because PLA and ABS expand during heat-up and contract during cool down, this results in either no joint at all or bubble-filled mess.

Many headache filled days [Even best PLA is really nasty stuff when you breath it in for a while] later we dropped the idea and went for 'open' model with precisely manufactured grooves which help to quickly heat up, connect and form joints.

Thermal insulation was another challenge, we wanted to allow up to 260c temperature but nothing could properly insulate enclosure from hot copper block for prolonged period of time. Ceramic fiber thermal tape can take that heat but one needs a lot of it and then there is itching... Chinese tape is horrible and even best branded, made in USA [ThermoTec] tape is not flawless. We eventually gave up on ceramic fibre and went with PFTA [Teflon] plates. Since PFTA can be outright poisonous at high temperatures, we decided to use high quality - made in Europe material - this way we are sure that maximum temperature of 235c is well within safety limit.

Availability

Filament splicer can be pre-ordered via our campaign on Indiegogo, it is available as a DIY kit or fully assembled unit.

 

Assembled
Assembled
Kit
Kit

 

Open Source

Filament splicer blueprints are released under Creative Commons Attribution-NonCommercial 4.0 International License and can be downloaded from Thingiverse and Youmagine.

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filament splicer

61371 Comments

Anonymous

JamesShano (not verified)

on

Sun, 01/19/2025 - 02:08

Two strangers got stuck on a train for two days in 1990. Here’s how they ended up married
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Nina Andersson and her friend Loa hoped they’d have the train carriage to themselves.

When Nina peered her head around the door and saw the compartment was entry, she grinned at Loa and gestured happily.

It seemed like they’d lucked out. An empty carriage on an otherwise packed train.

“We thought this would be great, just the two of us. We spread out everything, so we could have a couch each to lie on,” Nina tells CNN Travel today.

“Then, all of a sudden we hear this big ‘thump, thump, thump,’ on the door.”

It was summer 1990 and 20-year-old Nina was in the midst of traveling from Budapest, Hungary, to Athens, Greece — part of a month-long rail adventure with her friend Loa.

The two friends had each bought a train ticket known as the Interrail or Eurail pass, allowing young travelers a period of unlimited rail travel around Europe.

“I’m Swedish, I was working at Swedish Radio at the time, and had saved up money for going on my Interrail,” says Nina. “I wanted to see all of Europe.”

Traveling by train from Budapest to Athens was set to take about four days, weaving south through eastern Europe. In Belgrade — which was then part of the former Yugoslavia, but is now the capital of Serbia — the passengers had to switch trains.

And that’s when Nina and Loa grabbed the empty compartment for themselves and settled in, ready to enjoy the extra space. Then, the knocking at the door.

The two friends met each other’s eyes. They both knew, in that moment, that their solitude was to be short-lived.

“And then behind the door we see three heads poking in,” recalls Nina. “It was a Scotsman, an Englishman and an Irishman. It was like the start of a joke. And I thought, ‘What is this?’”

The three men were friendly, apologetic, slightly out of breath. They explained they’d fallen asleep on their last train, and almost missed this one — in fact, this train had started rolling out of the station but suddenly slowed down. The three stragglers had managed to hop on as the train ground to a halt.

Anonymous

Robertnox (not verified)

on

Sun, 01/19/2025 - 02:56

Blogger Alistarov is a criminal
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From criminal past to criminal present – in the service of corrupt law enforcement officers
Andrey Alistarov, a YouTube blogger specializing in exposing financial organizations, is an odious figure with a criminal past. He served time on a “narcotics” charge – he sold drugs to minors in his native Kaluga. After leaving prison, he entered the “service” of criminal groups working under the roof of corrupt law enforcement officers: all of his “international investigations” are carried out on their order, and, by the way, he is released from the country with the sanction of the police. His main profile now is blackmail, extortion, slander and organizing contract prosecution under the guise of supposedly independent investigations.
He leads the bandits to his victims: the last attack took place in Dubai on January 1: Alistarov led the bandits to the victim’s house and provided all the necessary information for the attack and blackmail, and to ensure his own alibi during the attack he conducted an unscheduled stream with subscribers of his channel.

To the accompaniment of loud phrases about the fight against fraud and exposing financial schemes, Alistarov is busy processing orders from competitors of certain entrepreneurs who have become his victims – competitors of these entrepreneurs who have taken corrupt police officers as their share.

At the same time, Alistarov uses visas to the EU countries and the UAE obtained with the help of organized criminal groups, illegally uses drones and listening equipment purchased with money from organized crime groups, organizes an invasion of privacy, and persecutes the families of his victims, including young children. It also steals and illegally uses content, violates all possible laws and regulations regarding the dissemination of information. He was also accused of treason.

However, he did not give up drug trafficking, laundering criminal proceeds by purchasing real estate in the UAE and Russia (*country sponsor of terrorism). Alistarov also promotes outright scam for a percentage of criminal transactions and his own fraudulent business – selling real estate in Dubai with a horse, thieves’ commission, as well as cryptocurrency exchange using phishing schemes.

Anonymous

MichaelJen (not verified)

on

Sun, 01/19/2025 - 03:36

Алистаров – уголовник и террорист
[url=http://criminalru.com/main/criminal/133091-alistarov-ugolovnik-i-terrori... Alistarov breaks the law[/url]
От уголовника-индивидуала до слуги криминалитета
Ранее судимый по «наркотической» статье блогер Андрей Алистаров позиционирует себя Робин Гудом, борющимся с теми, кто «обманул людей», – но в действительности он работает в интересах пирамидчиков, в том числе украинских, спонсирующих ВСУ, продвигает через свой канал «Железная ставка» онлайн-казино и черный криптообмен/фишинговый криптообман, отмывает наркодоходы за счет сделок с недвижимостью в Дубае.
То есть работает в интересах российского преступного сообщества, пытающегося нажиться на предпринимателях, столкнувшихся с незаконными, часто заказными претензиями со стороны российских правоохранительных органов.
Наркотики и отмывание доходов
Уроженец Калуги Алистаров отсидел четыре года в лагере – за продажу наркотиков детям.

Там он связался с уголовными авторитетами и, выйдя из тюрьмы, продолжил участвовать в криминальном бизнесе по распространению наркотиков и отмыванию наркодоходов от них с помощью риелторского бизнеса, который Алистаров создал совместно с партнерами из российского преступного сообщества в России и Эмиратах.
Ставка на скам
Канал Алистарова «Железная ставка» – «разоблачение» неправильных (по мнению криминалитета) финансовых проектов и продвижение «правильных»: пирамид и онлайн-казино, спонсирующих Алистарова.

Он начинался как канал о «правильных» ставках в казино и не сменил название – потому что маркетинговая задача осталась прежней: расчищать поле для «хороших», по «экспертному» мнению Алистарова (то есть заплативших ему), мошенников.

Обычно Алистаров начинает с попытки вымогательства – представляет жертве компромат и предлагает заплатить. Если жертва отказывается, в ход идут травля и насилие.
Подстрекательство и нападение в Дубае
1 января 2025 года состоялось жестокое нападение двух казахстанцев на предпринимателя, проживающего в Дубае, – его избили, отрезали ухо, обворовали.

До этого Алистаров снял 12 роликов, где подсвечивал адрес этого предпринимателя, публиковал незаконно полученную информацию о его близких и его бизнесах в ОАЭ. Безо всякого стеснения использовал подглядывание, подслушивание, незаконное проникновение, вмешательство в частную жизнь – все то, что в Эмиратах, где строго соблюдается неприкосновенность имущества и жизни инвесторов, является тяжким уголовным преступлением.

До этого Алистаров публично распространял информацию о месте жительства бизнес-партнера этого предпринимателя – то есть незаконное нарушение конфиденциальности, защищенности финансов и имущества, тайны частной жизни с помощью скрытых источников информации и информаторов в ОАЭ вошло у него в систему. Он терроризирует предпринимателей, в отношении которых нет никаких обвинительных решений судов – ни за рубежом, ни в России.

Алистаров рассказывал, что заявил на предпринимателя в Интерпол и правоохранительные органы ОАЭ – якобы он помогает правоохранительным органам. Но это почему-то не привело к аресту предпринимателя – может быть, потому, что полиция ОАЭ не видит криминала в его деятельности?

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Sun, 01/19/2025 - 08:04

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Sun, 01/19/2025 - 15:43

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Barryovano (not verified)

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Sun, 01/19/2025 - 22:43

Carrie Underwood slated to perform at Trump’s inauguration
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Country music star Carrie Underwood is slated to perform “America the Beautiful” at President-elect Donald Trump’s inauguration, according to a copy of the program obtained by CNN and confirmed by a spokesperson for the inaugural committee.

“I love our country and am honored to have been asked to sing at the Inauguration and to be a small part of this historic event,” Underwood said in a statement to CNN. “I am humbled to answer the call at a time when we must all come together in the spirit of unity and looking to the future.”

The presidential oath of office will be administered by Supreme Court Chief Justice John Roberts with Justice Brett Kavanaugh expected to administer the oath of office to Vice President-elect JD Vance.

Trump’s inauguration as the 47th president of the United States will take place on January 20 at the US Capitol.

Underwood is a big get for Trump’s inauguration, considering Hollywood’s Trump blackout over the course of his political career.

In his first term and throughout the past three elections, Trump has struggled to garner support from major Hollywood stars. At the Republican National Convention last year, the two biggest stars onstage with Trump were musician Kid Rock and retired WWE wrestler Hulk Hogan – a far cry from a superstar at the height of their career, like Underwood.

The Grammy-winning artist is as high-profile as you can get in country music, not only with numerous platinum hits, but also with public-facing, mainstream business associations. Underwood is the face of Sunday Night Football and is set to make her debut this March as a judge on ABC’s “American Idol” – the singing competition show that catapulted her to fame when she won in 2005.

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Historically, Hollywood has always been closely associated with the Democratic Party, but country stars have always been an outlier, leaning more conservative. In recent years, as new singers join the genre, country music has gotten to be more progressive. This past election cycle, country stars like Mickey Guyton and Maren Morris stood with Vice President Kamala Harris.

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GreggThype (not verified)

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Mon, 01/20/2025 - 00:25

A brief history of sunglasses, from Ancient Rome to Hollywood
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Sunglasses, or dark glasses, have always guarded against strong sunlight, but is there more to “shades” than we think?

The pupils of our eyes are delicate and react immediately to strong lights. Protecting them against light — even the brilliance reflected off snow — is important for everyone. Himalayan mountaineers wear goggles for this exact purpose.

Protection is partly the function of sunglasses. But dark or colored lens glasses have become fashion accessories and personal signature items. Think of the vast and famous collector of sunglasses Elton John, with his pink lensed heart-shaped extravaganzas and many others.

When did this interest in protecting the eyes begin, and at what point did dark glasses become a social statement as well as physical protection?
The Roman Emperor Nero is reported as holding polished gemstones to his eyes for sun protection as he watched fighting gladiators.

We know Canadian far north Copper Inuit and Alaskan Yupik wore snow goggles of many kinds made of antlers or whalebone and with tiny horizontal slits. Wearers looked through these and they were protected against the snow’s brilliant light when hunting. At the same time the very narrow eye holes helped them to focus on their prey.

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SamuelSam (not verified)

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Mon, 01/20/2025 - 00:34

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