Rancilio Silvia single load cell drip tray

This model is a completely printed drip tray and drip grid for the Rancilio Silvia v5. The model is designed so that a Loadcell can be installed between the support plate and the drip tray. The necessary brew-by-weight conversion has been developed and documented as part of the Clevercoffee project: https://clevercoffee.de

In the CleverCoffee project, two load cells are provided, which are placed on the right and left of the main frame. In my case, this setup had the major disadvantage that both sensors are controlled via a single hx711 board, which leads to inaccurate results and a high susceptibility to errors.

In my setup, the cup is placed on the carrier plate and can therefore be weighed accurately to the gram and without errors. It is not necessary to change the code from the CleverCoffee project. The Loadcell only needs to be calibrated correctly.

Attention:

As the printed parts come into contact with hot water, printing with ABS is strongly recommended. The ABS filament I use (Bambu ABS) has a heat deflection temperature of 87 degrees celsius, which is sufficient for the parts not to deform during normal use. However, avoid exposing the parts directly to steam from the steam lance.

Additionally, a printer that delivers high quality and accuracy is highly recommended. I use a BambuLab P1S. My drip tray is completely waterproof without any post-processing. With other printers, this should be tested in advance.

What you need:

• The model is specially designed for the Rancilio Silvia v5. To determine whether another generation of the machine will also fit, it must be clarified whether the size of the main frame is different.
• Load Cell. In principle, any sensor can be used. However, the model is designed for the size of this sensor https://www.amazon.de/gp/product/B07MY35F92/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1
• All printed parts. The "halter_abtropfblech.stl" are not absolutely necessary. The brackets have the disadvantage that the screws on the brackets must first be loosened in order to remove the tray for emptying. However, the brackets ensure significantly better stability and better results for the scale. If the brackets are used, 6 pieces are required.
• Screws:
  • 2x M5x25 countersunk screw
  • 2x M4x15 countersunk screw
  • 7x M3x15 countersunk screw
• M3 melt-in thread
  • 6x for the brackets of the drip tray
  • 1x for the holder of the support plate