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Muddy Faces

Make a foot operated soap dispenser

Step-by-step instructions to build a practical soap dispenser to go with your Tippy Tap, creating an effective outdoor hand washing system - and it's fun to make!

What's New

Introduction

This is an advanced activity for children to practise the skill of drilling.

Donated by author & outdoor learning expert Richard Irvine.


Key Features

Environmental Considerations

Consider the environmental impact of preparing, carrying out & completing this activity. Could this impact be reduced? Specific considerations for this activity could include:

  • leave no trace - take waste materials away
  • protect the tree & ground below

Health & Safety Considerations

Follow your usual operating procedures and carry out appropriate risk benefit assessments.
Some considerations particular to this activity include:

  • tool use
  • using soap

What you'll need

Tools:

  • bow saw
  • knife
  • twist drill with 7 or 8mm bit
  • auger bit and brace – sized to fit the top of the soap bottle
  • axe or froe
  • mallet
  • hammer

Materials:

  • liquid soap in a pump bottle
  • old bike inner tube
  • paracord
  • clout nails
  • 5m endless ratchet strap
  • length of roundwood, 10-15cm diameter (ash or chestnut are ideal)

Richard Irvine



What's New

Step #1 Split the wood

Split your length of wood through the centre.

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Step #2 Saw a groove

With the wood held securely in a sawhorse, saw a groove in the bark side about 5 or 6cm from the end. The groove should stop at least 2cm from the flat side of the wood.

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Step #3 measure the bottle

Place the bottle on the wood as shown to measure how tall the stand needs to be. Saw it off a few cms beyond the top of the pump handle when it is extended.

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Step #4 Create the backplate

Place the wood upright on a stump and very carefully measure up where to cleave with your axe or froe.

The aim is to remove the section of wood above the groove leaving a backplate with an integrated shelf for the bottle to sit on. It will look like a high backed chair.

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Step #5 Make the top block

Use the offcut from cleaving to make the top block that will press on the pump handle.

Saw a groove a few mm deep, all the way around the bark side. This should be about 1cm from the end of the wood. Pay attention to holding this short length of wood safely while you saw.

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Step #6 carve a channel

Use your knife to carve a V shaped channel down to the base of the saw cut made in step 5.

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Step #7 Drill a hole

Turn the wood over and drill a large hole using the bit and brace. This hole should have a diameter as wide as that of the pump handle. It should be a couple of cms deep but not go all the way through the wood

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Step #8 Carve a channel for the nozzle

Use the knife to carve a tapered channel from the auger hole to the edge that will house the nozzle of the pump handle.

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Step #9 saw off section

Turn the wood over and saw off the section that you have been working on. The gap from the back of the drilled hole to the back edge of the wood should be small enough to not touch the back piece of the stand when the device is assembled

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Step #10 cut inner tube

Cut a length of the bicycle inner tube long enough to wrap around the backplate with some overlap.

Wrap the tube around in a position where it will hold the soap bottle firmly against the backplate.

Attach it with a clout nail or two.

Check the length so that they don’t go through the backplate and puncture the soap bottle!

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Step #11 attach to tree

Choose a tree or post to attach the soap dispenser to. Place it at a comfortable height for users to place their hands.

Strap the backplate to the tree or post with an open ended ratchet strap (£4 each from Screwfix).

NB: If the dispenser is going to be in place for any length of time, use some form of bark protector underneath the strap. Mine will be removed every couple of days so there shouldn’t be any damage to the bark occurring.

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Step #12 drill holes in foot pedal & cut a peg

Either split a plank from your leftover wood in step 1 or find a bit of scrap wood to make the foot pedal.

Cut to length (30cms-ish) and drill a large hole in one end and a smaller 8mm hole in the other end.

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Step #13 secure foot pedal

Cut a peg to hold the front of the pedal in place through the big hole.

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Step #14 position the cord

Cut a length of paracord a bit longer than twice the height of the ground to the top of the pump block.

Find the middle and place it in the groove at the top of the pump block.

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Step #15 setting up the pedal

Thread both ends of the paracord through the small hole in the pedal board and adjust the length so that they hold the end of the board up enough to give one squirt of soap when the pedal is depressed.

Tie them in a double overhand knot under the hole. This can easily be adjusted and finely tuned to exert the right amount of pressure on the block.

Make sure that this small hole is directly underneath the shelf that the soap sits on, otherwise the top block will be pulled forward off the soap bottle.

This stage takes a bit of testing and tweaking but hopefully will result in a functional woodland soap dispenser in the end.

Disclaimer: Muddy Faces cannot take any responsibility for accidents or damage that occurs as a result of following this activity.You are responsible for making sure the activity is conducted safely.

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