open|haus

Open|haus_7/28/2015

Every Tuesday, we open up our doors at 7 pm to invite in the members of the general public.

We’d love for you to come in and show off the projects you’ve been working on or if you are stuck on a project and need other people to help you brainstorm answers we are here to help you with your questions too!

Whatever the skill level, you are always welcome in our ‘Haus’. We love teaching beginners the skills they need to succeed and sharping our own skill by learning from experts who drop by.

We are located in Hamilton, Ontario at 25 Dundurn St North. Just head to the back door and when you come in you’ll see a second door to your left. We are just up the set of stairs.

See you tonight @ 7pm

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The torch is mounted

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The plasma cutter is mounted and the end stops are set up. The stepper motor controllers were also ordered. Should be able to get this together in the next little while.

 

 

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open|haus

Open|haus_7/21/2015Every Tuesday, we open up our doors at 7 pm to invite in the members of the general public.

We’d love for you to come in and show off the projects you’ve been working on or if you are stuck on a project and need other people to help you brainstorm answers we are here to help you with your questions too!

Whatever the skill level, you are always welcome in our ‘Haus’. We love teaching beginners the skills they need to succeed and sharping our own skill by learning from experts who drop by.

We are located in Hamilton, Ontario at 25 Dundurn St North. Just head to the back door and when you come in you’ll see a second door to your left. We are just up the set of stairs.

See you tonight @ 7pm

Google Map

No Comments

open|haus

Open|haus_7/14/2015Every Tuesday, we open up our doors at 7 pm to invite in the members of the general public.

We’d love for you to come in and show off the projects you’ve been working on or if you are stuck on a project and need other people to help you brainstorm answers we are here to help you with your questions too!

Whatever the skill level, you are always welcome in our ‘Haus’. We love teaching beginners the skills they need to succeed and sharping our own skill by learning from experts who drop by.

We are located in Hamilton, Ontario at 25 Dundurn St North. Just head to the back door and when you come in you’ll see a second door to your left. We are just up the set of stairs.

See you tonight @ 7pm

Google Map

No Comments

The Sign Is Coming!

The CNC engraver is being revamped! The goal, make signs. Or engrave. Or cut out circuit boards. It really depends on what people use it for.

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In the near future an aluminum plate with 1/4-20 holes spaced 1″ apart will be put on top of the wooden sheet. The wooden sheet is a machined level surface. The aluminum plate will have 4 pins in the corner that a wooden sheet will fit onto. That way wooden sheets can be populated, plopped on, and machined.

Potential uses:

– Making signs

– Engraving circuit boards from copper coated sheets and cutting through holes

– Engraving brass, aluminum, or steel plates

– Printmaking (rolling press) multi-colour prints

– CNC milling of wood

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Making a new 3D printer

V3 Working on a 3D printer in a heated chamber. Why? Well look at the crack in the green dinosaur.

What happens is the hot (DSCN8230230C) plastic is laid down onto the old cold layer of plastic. Then the plastic cools and a new layer is laid on top. That layering builds up and shears, resulting in the plastic separating. To prevent this, one builds the parts inside a heated chamber. Why are there so few heated chambers on standard printers? Well, bad news, it is patented (expires in June 2020). Good news, not selling the product and can do it for my own things.

A key issue with the heated chamber is that it needs to be around 90C. This temperature is bad for motors and acrylic isn’t too strong at that temperature so I designed away. Above is the Version 3(ish). Version 0 first though!V0

Version 0 was a wooden structure mounted around the Kossal Delta printer. This design was cut out of wood and was mostly complete, but there were several key flaws with the whole setup.  The largest being that the arms hit the frame and the holes in the frame were too large. This caused the whole design to fall apart and was taken apart shortly after being built. Didn’t even take a photo of it it was so bad.

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Version 1. I removed some of the panels so you can see what is going on here. This was based off of the Prusa design. The bed would move along a set of rails while the Z would lift the X axis. I was planning on using door sealing brushes along the gaps to prevent air flow. In the end, this was a good design but required a lot of table space. The design was then changed.

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Version 2 was almost complete! I think there was a photo of it on a prior post. It is shaped like a house. The bed moves vertically while the head moves in the XY directions. The head is following a H Belt design. This design is good in theory, but requires very stiff joints to ensure that the carriage is moving correctly. This design is popular in the industrial quality machines, but wouldn’t work out too well. Too much shaking in the joints.

V3 Version 3 is what is being built now. it follows a different setup. More complex and requires more rods and parts, but is more stable and simpler in design. Fewer parts in the main assembly and less chance of failure. It is also the house shape, but a simpler design on the outside overall. Hoping to get this one done next month.

 

Unless, of course, I change the design again.

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When it rains, build a geodesic dome

With rain on the way and a party imminent, did what anyone would do: build the geodesic dome and cover it with a Jeep parachute. Bonus of the parachute is it has Kevlar ropes that are very bounce-free.

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The dome. Just going around and tightening it up.

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Putting the parachute on top. Worked quite well as a rain cover. Played a bunch of games inside.

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This is what the metal bars were. The shape is a general Level 2 isosphere that you may recognize from a soccer ball. 3 lengths of bars, clamp the ends, drill, and paint. Took about 3 hours to make with 3 people. If anyone is interested in the designs, just ask!

 

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Biohacking Redux

Hello,

I am Rain. The current resident neurohacker/biohacker at ‘The Haus’.

You may know me from such past speeches as:

If you have an interest in chatting about biohacking, working on biohacking projects or just interested in finding out more about the subject in general then you should come join me at open|haus. We throw open our doors to the public every Tueday @ 7pm.

I have been working on a project to use an ‘off the shelf’ product with heart-rate pacing to help with recovery of chronic fatigue and over-training in athletes. I promise to keep you updated with my progress.

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Plasma, the fourth state of matter

Plasma cutter. Cut 3/8″ sheet aluminum. Cut steel. Cut stainless. Be like the laser cutter, but for metal. That is the goal. But baby steps before we get to the whole thing though. Have to use the tools at hand to make the setup. As Think|Haus has 3D printers and laser cutters, making metal is a little different. The X and Y are done, now the Z. Here it is modeled on OnShape. It is a free, in-browser CAD software so that anyone at ThinkHaus can get it. If someone needs a key, ask, or look on the website. I am thinking of running a course on how to use OnShape soon. Website is here cad.onshape.com

Frame

Next, getting the metal. Must say, the selection that I have scavenged from the University is not that good and we don’t have a chop saw. Took a bit to cut two blocks from it.

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Next I turned the blocks to size. Turned? Yes, we don’t have the collets for the mill yet. Turned. Worked quite well to be honest. Would be better if we had a 4 jaw chuck though.

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Bored out the holes and made a cut on the one side. Cleaned that up with a file. Afterwards I cut it with the hack saw again.

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Then put it all together and see how it looks.

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Next I need to make the mounts for the linear bearings. Will follow the same process again and hopefully won’t take a whole afternoon. I know it will though. All in the name of plasma.

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What is that thing?

You may have noticed, or may have been present when a thing entered ThinkHaus last week. It is a pile of metal. Well, yes, it is, but it has some really neat capabilities.

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The machine was designed to accurately place fluid into test tubes. A gantry moved across the top and eight individual arms lowered to a different height. The test tube would then dispense liquid into a vial and continue on. There are fiber optics that were used to measure the meniscus of the tube, there is a 40″ and a 20″ long encoder. There are massive motors. There are 8 precision fluid injectors. There are lots of capabilites that can be made from this.

The most solid idea so far? A plasma cutter.

Zeeshan has a plasma cutter at home he bought to use for cutting metal to add to his arsenal of home built CNC machines. With this, Think|Haus could cut metal. It requires 20A220V, so it would need a new setup akin to the kiln. Debates are still up in the air about how to do this, but there is an idea.

As well, I did mention 40″ and 20″ encoders. There are also 8 rotary encoders. There is more than enough here to turn the mill lathe into CNC.

 

In other news, I have been working on my own design of 3D printer. It has an environmental chamber to keep the temperature of the parts constant during printing.

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Also found this. This is a neat little thing that was part of the big machine above. It has hot/cold plates that can accurately set the temperature of test tubes or the test plate to 4-65C. It cools and heats depending on what you want! This will likely be given to a makerspace with biological use unless there is a keen reason to keep it here. The plugs on it must have been worth a fair amount.

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Finally, someone asked about a parasitic pump. If you need one, I can get it. Laboratory grade too.

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