Dr Foster's Magic Money Maker

Dr Foster’s Magic Money Maker 

This is my fun recreation of a neat little trick that probably holds a good deal of nostalgia for many folks. I certainly had one of these as a budding 8 year old magician. I can remember fooling friends with it - and it’ll fool grownups too!

Produces notes in your local currency! 😁

This is an easy and quick print, and assembly is straightforward. You do not need an AMS unit to make this trick, you can print a single colour version and it will work just as effectively. 

You will need one non-3D-printed component. The rollers are made from material called ‘PU fabric’ It is a very flat, nylon type material with zero stretch. It is sold in Hobbycraft in the UK and at most local maker / material supply stores. You need one piece of material that is 83mm wide x 160cm long (note – the length is in cm not mm!) – it takes quite a lot of material to make the rollers. 

Printing and Assembly

The frame and knobs can be printed at 0.2mm, the rollers should be printed with support

Once you have printed the frame, push the knobs on the end of the rollers and slide the rollers into place in the frame. You may need to clean the filament out from the underside of the knobs, this is usually only a single strand or two and will come away cleanly with tweezers. Depending on the tolerances of your printer you may need a spot of glue to hold the two halves of the frame together. 

Cut the material to size. You need to be *really* straight along the long edges as this will affect how well the rollers look and work. 

Start at one end and wrap the material around one of the rollers. Use glue stick to hold the end of the material in place on the roller so you can then tightly roll it up. Glue stick is great as it allows you to reposition it. It may take you a couple of attempts to wind all the material on to the first roller whilst making sure it is straight – this is the only tricky part of the build and it’s a must that it’s straight or the rollers will bind and not work correctly. 

When you reach the other end, feed the end of the material between the rollers, and then wrap it around the second roller so it rolls in the opposite direction. There should be enough material to form two almost touching rollers when all the material is loaded. You may need slightly more or less than 160cm, depending on the weight of the material you use. 

When both ends are glued in place, wind the rollers so they are even and look like ‘normal’ rollers and you’re good to go. 

To set up the trick, you’ll need a bank note (yup – sorry about that!) and a piece of paper the same size as the note. Place the end of the note in between the rollers and turn the top knob anti-clockwise. When the note *just* disappears, you are ready to perform the trick. 

To perform the trick simply place the blank piece of paper in the back of the money maker and turn the lower knob anti-clockwise. This will simultaneously pull in the piece of paper whilst ejecting the note from the other side. The effect is quite convincing, and you can even roll back and forth and they with both move in perfect time with each other.  

Hope you have fun! Please do leave a thumbs up or a rating for the print profile as it really helps. 

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