Join us at Dublin Maker, Saturday, 21st July in Merrion Square

TOG is delighted to be accepted into Dublin Maker again in 2018. We are really excited to join the maker community from Ireland and the world to show off our projects and meet other makers and the public.

A duck shooting stand and tent with TOG's stall at Dublin Maker in sunny Dublin

TOG at Dublin Maker last year

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3D Printer Restoration and Tuning

In 2014 Tog won a Lulzbot Taz 3, since then it has been used on and off and mostly off for the past 2 yrs. During this time, there was very little, if any maintenance carried out on the printer. As a result, it had become gunked up with the remains of previous prints. From shavings in the extruder to melted plastic stuck all over the nozzle and heat brake, it was pretty messy.

As I had recently ordered a Prusa i3 MK3 for myself, I thought it was as good an excuse to reintroduce myself to the nitty gritty of 3D printing – by restoring the Tog Lulzbot Taz 3.

The first issue was that because the Lulzbot Taz 3, or at least our version of it, had no endstop switches on one side of the Z Axis (they’re are actually only one for each axis, presumably only used for homing), it was incredibly easy to instruct the 3D Printer to break itself – and that’s precisely what had happened.

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One of the Z-Axis followers had been broken into two while the X-Axis and Extruder assembly was being raised too high and hit into the main frame of the printer. This resulted in a broken part. 

The emergency fix for this was to use zip ties to hold the follower together just long enough to print replacement parts (pictured right). We were actually incredibly lucky that this worked! If it hadn’t there would’ve been no way to fix this part without finding another 3D printer to produce the necessary part – but as it was, the temporary fix worked just long enough for us to do a few test prints and to print an actual working replacement part. Albeit in PLA which is not ideal, but it works!

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Once the 3D Printer was back to being somewhat functional, I set to task to begin calibrating and cleaning and doing basic maintenance on it – something which has been sorely missing for the past 4 or so years of its operation.

The print bed had years worth of hair spray caked onto it, so a lot of time was spent scraping that off and wiping it clean with isopropyl alcohol (99%). Then doing basic tasks such as levelling the bed, re-homing the z-axis etc. After all that we printed some calibration prints

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After a little tweaking, we measured that the prints were +/- within 5% of the expected outcome. So for a 20mm part, it could be anywhere between 19 and 21mm. This is far from ideal for mechanical fitting parts, but its a good start. 

The next task on the docket was to clean up the hot-end. It had accrued quite a lot of grime over the years, so I set to task to cleaning it up. First I tried some acetone, which removed some of the lingering ABS plastic, but the PLA was completely untouched. After inspecting the nozzle, it became clear that it has been seriously worn out after years of use, so I was okay with being a little less delicate with it than I would ordinarily, so I used a wire wheel to clean and polish both the heat brake and the nozzle itself.

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This is only the start, we have a lot more maintenance and upgrade tasks. 

CNC Workshop

This July 7th TOG will be collaborating with guest Prof. Steve Potter and hosting a CNC wood milling workshop.

The event aims to introduce CNC wood-working and computer aided design (CAD) for beginners. It will cover the design and creation of items in free CAD software (Fusion 360) and the carving of those designs out of wood using the Handibot, a portable CNC router.

This event is open to both TOG members, and members of the public over 18 years of age,

Attendees will be required to bring a reasonably powered laptop and a 2-button wheel mouse (see f360spec), if not otherwise arranged.

Cost to members of the public is 25 EUR, including evening snacks/catering.

See eventbrite page for details.

Farewell Tog 2.0

We used to have a space on a quiet lane near the back of Dublin Castle. Warehouse Unit C on Chancery lane was our place to call home from 2010 till 2015. It was a big step up for us moving from a small office unit on Arron Quay to a proper industrial style unit ( Check out this walk though of Tog 1.0 here) . We called it Tog 2.0 and moved in the summer of 2010. The unit had been empty for a number of years and had suffered extensive damage during the Big Freeze of 2010. The unit required a lot of repairs and renovations but we knew we could make it work and find the money to pay for a bigger space.  Check out the video below by a very exited Robert Fitzsimons soon after we got the keys or our photos from our gallery

 

 

It took us about a month to get the space ready to open to the public with members doing all the work including fixing the 12 leaks. You can read the blog post from the time here.  

 

 

Over the years in Tog 2.0, we held 100’s of events and built many a project. Some of my personal favourites are the Security Saturday event and the Rubens Tube just to name a few. It was in this space that we fell in love with pizza ovens, a love that continues today with our 3rd version in use today at our open socials. Finally, one of the most important things to happen in Tog 2.0 was the start of our obsession with ducks. We have taken our love of ducks in many directions and places we would have not thought possible. Giant Ducks, painted ducks, photo shootsplot them, taken in strays, even put them on our clothing.

Our time at Tog 2.0 came to an end with the owner of the building deciding they wanted to build on the site and not giving us a new long term lease. After a long search we found Tog 3.0 and moved in October 2015 which brought an end to Tog 2.0. The building once again was left vacant for a number of years with it only recently being knocked down. 

 

 

Farewell Tog 2.0, you serviced us well for many years. 

Now cracks a noble heart. Good-night sweet prince:
And flights of angels sing thee to thy rest!

Finish a project at TOG, June Hackathon, Finishathon edition

At TOG, we love hacking, and we have a lot of projects lying around, so we want to try to finish some of them. That’s why we are having a one-day community Hackathon and the theme is Finish a Project! Don’t worry if you have a huge¬†project that might take longer to finish, just finish a part of it. The event is free and open to everyone to attend, if you don’t have a project you can help someone else.

Group of people hacking in the TOG common room

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Cryptocurrency Mining Workshop

This is the second time that this event takes place this year.

Come and learn about Cryptocurrency Mining with David. Learn how to start on the right foot with these new technologies.

You don’t need to bring a shovel, a simple laptop will do (MS Windows OS recommended)

> What is Crypto Mining (and why it is required)
> PoW and PoS.
> Difficulty, halving, Hashing power, block rewards.
> Pitfalls and concerns.
> Hands on with Staking and Masternode mining
> Hands on with CPU/ GPU mining.

This workshop will take place on Tuesday, June 5, 2018 from 6.30pm to 9pm

Feel free to join our meetup group or follow us on Twitter:

@DubCryptoTalks

twitter.com/DubCryptoTalks

meetup.com/Dublin-Crypto-Talks