One of these guard dogs is staying here to guard my computer but the other two are heading off to new homes!



Time to draw some names from the colourful-paper-bag-of-destiny!



I printed out the names from the comment section and the names of people who had emailed, dropped them into the aforementioned bag and gave it a good shake.

I then drew out two of the names...


First new owner is uncledon, a US member of almost six years standing. Thanks uncledon!

...and secondly: bluetreefrog. bluetreefrog has been a member for over two years . Thanks for your support! I'll be emailing to ask your delivery details shortly

Thanks to everyone who offered a home to a guard dog, I really appreciate your interest!


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Index mechanism.

Essential Mechanisms.

An indexing mechanism or intermittent drive is a mechanism that turns a wheel or shaft a small amount then stops for a set amount of time the turns again repeating this process over and over as the drive handle is turned.

Indexers are used for all sorts of things including digital displays when a sequential number can be displayed or in machines used to cut gear teeth.

This paper indexer has a twenty four tooth drive wheel. It takes twenty four full turns of the handle for the geared wheel to make one full turn. Download and make this model to find out first hand just how an indexer works. Use it as an exercise in pure mechanism or as the starting point for your own designs.


In this Instagram video you can see the indexer in action.


Paid subscribers can download the project for free. Thanks for signing up! Non-members can download the parts for £2.50

Print out the parts onto thin card (230 gsm / 67lb) Score along the dotted and dashed line and cut out the holes before carefully cutting out the parts.


I printed the box parts onto white card and the mechanism page onto coloured card so that the mechanism would stand out in the finished model.


Roll up and glue down the two tubes lining up the ends with the points of the arrows.


Fold over the gear and glue it down to make double thickness card.


Once the glue is dry carefully cut out the teeth.


Thread the gear onto the gear axle and glue it into position with it lined up with the grey line.

Thread the round axle into place. No need to glue, friction will keep it in position.


Fold over and glue down the two plates making double thickness card.


Carefully cut them out.


Thread the two plates onto the shaft lining them up with the grey lines.


Glue the two swashes into place back to back. They link the two plates together as shown and will push the gear forward on tooth at a time.


Thread the longer round shaft into place in the square tube to complete the indexer shaft. Again, no need to glue, friction will keep it in position.


Assemble the box sides. The triangle tubes are right angled triangles.


Assemble the top and bottom. The triangle tubes are equilateral triangles.


Assemble the handle in three steps as shown.


Glue together the four parts of the box in the order shown. Note the positions of the various holes.


Fold up the box sides as shown and fit the gear into position. Make sure that it turns freely. If it is a tight fit expand the size of the hole carefully with the body of a pen.


Fold up the box side and thread the indexer in through the holes in the box.


Close the box and glue down the various flaps.


Complete the mechanism by gluing the handle into position. Once the glue is dry turn the handle and marvel as the gear is indexed fifteen degrees at a time!

Don't forget that if you are using this model as a starting point for your own designs it could be used either way up.


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Turn the handle on the paper animated Guard Dog and he barks ferociously warning you of approaching intruders.

Members can download the parts for free at the link above. Thanks for signing up! Non members can download and make the Guard Dog for £2.50

Print out the parts onto thin card (230 gsm / 67lb) Score along the dotted and dashed lines, cut out the holes then carefully cut out the parts. Follow the instructions below to assemble your own Guard Dog.

 


Make sure you have cut round the top of the nose, it is easy to miss this black line on a black background!


Assemble the bone cam from double thickness card.


Make the tail from double thickness card.


Fold over the top of the head back and cut out to make double thickness ears. Fold the ears over as shown.


Assemble the box top and base. The triangle tubes are equilateral triangles.


Assemble the box sides. The triangle tubes here are right angle triangles.


Glue the sides to the box top. Note the positioning of the various holes.


Assemble the box as shown.


Roll up and glue down the axle tube. Line up the end of the tube with the points of the triangles.


Assemble the bone cam and axle tube as shown. The bone cam lines up with the grey line on the tube.


Fit the bone cam into the box and thread the round axle tube into position.


Assemble the handle in three steps


Glue the handle to the axle.


Assemble the cam follower as shown.


Wrap a coin (20mm diameter 4 gram 1p UK 1c US ) in an off-cut of scrap card and glue it down. Thread the coin into the cam follower.


Glue the cam follower to the front of the box.


Assemble the push rod.


Thread the push rod down through the hole in the box top and glue it to the top of the cam follower. That's the box completed.


Making the Dog

Assemble the dog's head as shown.


Roll round and glue together the body tube.


Assemble the lower jaw.


Fit the lower jaw into the body as shown.


Glue the small tab on the head to the top back of the body. The head should be free to move up and down.


Glue the tail into place.


Glue on the front legs.


Assemble the two parts of the back legs and glue them into place.


Thread the dog down over the push rod protruding from the box top. Glue the end of the push rod to the underside of the muzzle as shown.


That's it! Set your guard dog down in a place where it will deter intruders.


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Sat 9th May 2015

What a delight! I received a letter. An honest to goodness paper based, snail mail letter.

The letter was from teacher Jenny Merrit from Queen Elizabeth School in Kirby Lonsdale. Earlier this year Jenny had been on my paper engineering course at Higham Hall where we made a variety of sea based pop up models. Jenny took some of these ideas into her Year 10 Graphics Products class and, using them as a starting point, the students designed their own pop ups.

They look absolutely fantastic! Thanks for sending through the picture Jenny.


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I'm in the process of setting up a studio corner in #TheShed so hopefully this will be the last time I'm using the dining room table for photography purposes. That will please #Truelove so no bad thing.


I'm trying out continuous lighting rather that the usual flash heads so that I can make a video showing how the model is put together as well as the regular still photographs.
Each of the three light heads has these five flourescent 80W tubes which are balanced to daylight. The light from them is really bright, I'll have to crack them out next time seasonal affective disorder sets in.

 


I've videoed myself making each stage of the model and then made another model to do the still photography. I'll be editing the video together next then writing out the instructions for the website.


The upshot of making film and video and having a prototype is that I now have a small pack of three guard dogs. I'd better start looking for a home for two of them before they start falling out with each other vicious beasts that they are.

Give a Guard Dog a Home

If you have the dog taming powers and the pack leader qualities to take on one of these cardboard canines please leave your name in the comments below. After a week or so I'll draw a couple of lucky names out of the hat of destiny then post out the dogs with my thanks and compliments. (This give-away is only for paid members of the site, thanks for signing up!)


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Sat 2nd May 2015

Here's a thought. A barking dog would look better than a nodding dog. With that in mind I have made some modifications to the nodding dog model that I made with the Eclips2 paper cutter


Here's the prototype. I've cut away the body and recessed the lower jaw into the slot. The lower jaw will remain stationary while the upper jaw moves up and down.


Here's the movement in action. Looks promising I think.

I'm planning on releasing the final as both a normal download-cut-out-and-make kit as well as an svg file for those of you with cnc paper cutters.


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Fri 1st May 2015

Friend of the website Michael42er has made a couple of Dog's Dinner models using a modified version of the original kit and using the poseable Frechie model from the Brother website.

Check out the YouTube video here. It's great! Thanks Michael!


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Thu 30th Apr 2015

The ever inventive Mr Cool was really quick of the mark releasing this video using the new Double Cam mechanism. He's taken a pair of paper monsters from Papertoy Monsters and fitted them to the double cam mechanism making this delightful model.

Thanks for sharing Mr Cool!


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Wed 29th Apr 2015

I received this video from AzRedShoe via my Facebook page, Having wrestled the html code into submission I have posted it here for all to see.

Mr Shoe has taken the new Double Cam box and added a Guard Dog from here and a chihuahua that he found for free on the internet then finished off the model with a set of googly eyes.

Looking good! Thanks for sharing it with us!

 

 

 

 

 


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Tue 28th Apr 2015

The lovely people at Sissix sent me an Eclips2 paper cutter to play with. I've had a couple of cnc paper cutters in the past but this is the first one that scores paper as well as cutting. My previous machines cut a perforated line for fold lines, this one has a special 'score' setting where the pressure on the blade is reduced.

The result is a beautifully sharp crease line. I've put together a sample model to try out the features of the machine.

I'll write a more detailed review at a later stage, in the meantime, check out this fine looking machine!


And this nodding dog model made using its awesome computer controlled powers.


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