Air compressor in workshop died few week ago and finally getting around to taking it apart to see what issue is. Seamed like motor might have ceased however it was quick fix.
If you work in industry or business, you probably have your electronic test gear and multimeters calibrated regularly. If you’re an amateur you probably don’t. We don’t have a fancy calibrator at TOG which can cost 1000’s and need regular calibration in itself. We do however have a 2 Euro voltage reference based on an Analog Devices AD548 voltage reference. Checking some of the multimeters that we have around, and the results are surprising.
The reference outputs 2.5, 5. 7.5 and 10V. Now this is a bit of a crude test, because this little reference is not calibrated or traceable to any standard. If you assume however that the voltages it gives are “exact”, a 20 year old Fluke multimeter is reading almost perfectly . Some other multimeters that we checked are a bit off, but still not too bad. We’re going to check some of the ultra cheap meters that we have too.
Fluke 77: 2.499, 5.00, 7.50, 10.00
Standard ST-3343 Clamp Meter: 2.495, 5.01, 7.51, 10.02
Velleman DVM890: 2.47, 4.96, 7.44, 9.92
Our May Open Social evening takes place on Saturday 20th May from 7PM.
If you’ve never been to our Social, you’ll find it a great alternative Saturday evening in town. Come in and look around. If you’ve never been in before, we’ll give you the grand tour of the space. Talk to members and visitors about projects or things you’d like to do. Ask us about the next phase of our plans for the space and our big cleanup. If you like what you see, ask about joining as a full member. If you see lots of excited people playing with small robot cars, don’t worry. We were running our Electronic build-It workshop earlier in the afternoon!
Hopefully there’ll be, caint, ceol agus craic as usual. The space stays open until the last member is left……usually the small hours of Sunday morning. The evening is free to attend for members and visitors alike. No need to book…. just turn up. You can drop in for 10 minutes, or stay the whole night. We have parking available. Bring beer, food, gadgets! Our doors are open from 7PM. Hope to see you there.
https://www.meetup.com/Tog-Dublin-Hackerspace/
https://lists.tog.ie/mailman/listinfo/tog
https://twitter.com/TOG_Dublin
https://www.facebook.com/togdublin
Hi everyone, we’ve an exciting few weeks coming up at Tog. We have our regular scheduled nights as well as some events on both Saturdays.
Monday May 15 – Coding Group Night from 19:00
Tuesday May 16 – Lockpicking Group Night from 19:30
Wednesday May 17 – Crafts Night from 19:00
Saturday May 20 – Build your own line following robot at our event from 15:00, and then hang around for our Open Social from 19:00
Monday May 22 – Electronics/Microcontroller night is on from 19:00, as is our CAD & 3D Modelling night also from 19:00
Saturday May 27 – Brewday in Tog from 10:00 with Capital Brewers.
We hope to see you at our events.
Back by popular demand, it’s our electronic “Build-It” workshop in TOG on Saturday 20th May from 15:00 – 18:00. Many visitors to TOG tell us that they would like to get started with electronics, soldering or assembly, but they are unsure how to do so. This workshop will help. You get to build (and keep) an electronic kit. The kit that we have chosen is a line-follower robot car. It will follow a black line or any line where there is reasonable contrast. You can see a video of the kit in action, from our previous workshop here.
The kit comes as a complete set of mechanical and electronic parts including a bare circuit board. You do all the electronic assembly and soldering as well as the mechanical assembly. If you’ve never built an electronics kit or soldered before, then this workshop is ideal for you. We’ll show you everything that you need to know. No previous experience at electronics, soldering or kit assembly is needed. We’ll explain the circuit and how it works too. All tools and equipment are provided. The workshop will take up to 3 hours, which is plenty of time. All proceeds from this event go to support TOG.
You might like to stick around afterwards for our regular Open Social evening which is happening on the same day.
*** You must be 18 or older to take part in this workshop. Please do not book places for children ***
Its been a while since this blog had some laser-cut goodness. This latest project is to create fridge magnets for a members event. The design uses the Alpha Thin font and features a person holding some fire poi.
After the cutting them all out of 3mm Birch Plywood, we marred them to magnets to with some glue.
We used Dry Erase White Magnetic Strip Roll, as we had it on hand. To glue them together we used our new favorite glue, Mitre Fast Adhesive.
For more photos of the build, visit our gallery. If you would like to do you our laser cutting projects do come along to one of our CAD nights.