Category: CNC

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Everything TOG in August, craft, code, lock picking, CAD, book club, free events in Dublin!

Hello all,

Craft Night: Runs on Wednesdays, the 8th and the 22nd August at 7pm. Knitting? Crochet? Embroidery? Laser cutting? 3D printing? Join us and work on something you know, or learn something you don’t.

We are supporting the great Dublin Raspberry Pi Jam crew to put on their first jam. It will be hosted in the Science Gallery on Saturday August 11th from 12:30. You can join the waiting list on the main event page -> https://ti.to/dublin-raspberry-pi-jam/first-pi-jam

Electronics and Micro Controller Night: Runs on Mondays, the 13th and 27th of August at 7pm. Arduinos, Raspberry Pis and Intel Galileos are just some of the things you can work on down here, or try our introductions to electronics worksheet. Recommended you bring your own laptop.

The Science Fiction Book Club gets ambitious this month, we’ve chosen two Philip K. Dick novels: A Scanner Darkly from 1977, and Do Androids Dream of Electric Sheep?, the inspiration for the 1982 classic filmBladerunner. The meeting to talk about them is the last Wednesday of the month, 29th August.

Lock-Picking: Runs on Monday 20th of August at 7pm. Come down and try your hand at cracking open tumbler, tubular or warded locks.

Open Social: Runs on Saturday the 18th of August at 7pm. Join us for an evening of conversations, games and our glorious hand made wood fired pizza.

Coding: Runs on Monday 20th of August at 7pm. Come down and work on a project or help others with theirs. Laptop and project of your own recommended.

Wikipedia Editing: Runs on Wednesday the 29th of August at 7pm. Ever wondered how to get started editing Wikipedia? Come along and will get you adding to the world’s largest open collaborative knowledge project. All are welcome, no editing experience is necessary and the event is free, just turn up with a laptop to start editing.

If you happen to visit EMF Camp from the 31st of August, be sure to drop by the Irish Embassy.

Remember, TOG is run by members, if you want to get involved and help run events + get full access to the workshop and facilities, talk to any member about joining.

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Upgrading the 3D Printer

After some TLC was offered up to Tog’s 3D printer, by way of a little restoration and tuning, it became very clear that the current hotend was on its way out.

Tog’s Lulzbot Taz 3.0 FDM 3D Printer has been deprecated and is approximately 3 versions behind the current technology. What’s worse is that the nozzles for the extruder were not standardised, byt comparison the E3D V6 style hotend and nozzles have been almost universally adopted. Even by manufacturers.

So, in case you’ve been wondering why Tog’s 3D printer has been out of action for approximately the past 2 weeks, thats why. I have started the process of upgrading the extrusion system to use an E3D V6 style hotend. Initally I tried some chinese clones (the designs are GPL’d after all!) but found their quality seriously wanting. I cannot comment on the genuine article as the order appears to have been lost in the UK postal system for the time being.

The main issue with changing from the Lulzbot Budaschnozzle v2.0 configuration to an E3D V6 is that there is apparently no models or designs we can draw from to make a mount. So I had to design one from scratch. I say design one, but actually there were many designs. The first was a laser cut wood mount – It worked but it just didnt feel like it what I was experiencing was truely level.

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As I am lucky enough to have a Prusa i3 MK3 printer of my own, so I have been iterating over the design and protyping a lot of different variations to see what works. When I say a lot, I do really mean a lot…

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I think now I have finally I settled on this design:

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The current backplate – which is already a reasonably good hot-plug-able system, is replaced with an altered one. This new one comes with a 5 x 7 grid (14mm spacing) of 4mm hex cavities which will be used as a ‘mechanical key’ to home whatever tool is installed. This way we come a little bit closer to achieving “true level”, mostly. It also has the added feature of supporting many different applications in the one piece – wheras originally it only supported the extruder assembly and the stock nozzle, this new design could even be used for things such as drawing circuits or as a plotter.

As I’ve been using AutoDesk Fusion 360 to design it, you can use this link to see the current model and download it if you so desire. It is still very much a work in progress,  however.

 

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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.

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First cuts with TOG’s DIY CNC router

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A few months ago we’ve mentioned a DIY build of a CNC router. The project turned out to be more complicated than we anticipated. The steel-based construction is not very forgiving, and the large size of the machine doesn’t help. Still, due to all the help from many members we managed to overcome a number of difficulties and do a few test engravings in MDF.

MDF is not a difficult material to mill – the most noticeable problems are the awful dust and the fluff around the edges of the cut.  The furry edge is easily fixed using sand paper, but the dust will probably require some more drastic measures in order to protect our lungs. Eventually we’re planning to cut and engrave a variety of materials, many of which have interesting properties but are incompatible with our laser cutter.

Visit us during one of our Monday CAD nights to see the new machine in action or in the video below.

 

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29c3 Lightning Talks & Recap

Over the Christmas break 8 TOG members took Road trip to 29c3 where we meet several other Hackerspaces. We had the pleasure of doing two Lightning talks one on Hotel Door locks and Fire Projects.

Our members also ran two workshops on Wearables and Hotel locks. We where able to attend lots of workshops across the 3 days and bring back lots more ideas for future projects in TOG.

We also got to visiting local hacker space Attraktor http://blog.attraktor.org/ we got the grand tour of space and got look at all the toys (8 CNC machines, leaths and milling machines well worth the visit very nice people and inviting to the space.

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