Adapter from Duplo to Hape Quadrilla Marble Runs / Adapter von Duplo auf Hape Murmelbahn

I have designed and printed a collection of add-ons and spare parts for the Hape marble run Quadrilla. Have fun with it!

This is an adapter from Duplo to Hape marble run. Using this, you can build a tower from duplo, add this adapter and continue with the marble run. Thus it is possible to build higher or bigger marble runs.