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You will need 2 ¾” wrenches, a 3D printer, and a computer for this fix.
  • You will need 2 ¾” wrenches, a 3D printer, and a computer for this fix.

  • Make sure the piece that broke was from an Allistar MVP automatic garage door opener.

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Send an email to [http://mailto:asherm55@gmail.com|This email address] to buy the STL file for $10 or a replacement piece for $20.
  • Send an email to [http://mailto:asherm55@gmail.com|This email address] to buy the STL file for $10 or a replacement piece for $20.

  • Print Product. NOTE: for this product I used glass reinforced PLA with 90% fill density to enhance the strength of the part.

  • Print spare sprockets for later. (optional)

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  • To remove bolt: use the 2 ¾” wrenches to loosen the nut on the bottom from the bolt on the top of the sprocket. Remove bolt, noting the order of everything in the assembly.

  • Put the sprocket directly onto the bolt once everything is off the bolt with the flat side towards the bolt head.

  • Place the washer on the bolt, followed by the nut (tighten), followed by the lock washer.

  • Pull the chain tight over the sprocket and insert the bolt into the hole in the bracket attached to the wall.

  • Tighten down the last nut with both of the ¾” wrenches.

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Conclusione

The piece printed in 35 minutes and works perfectly and the garage door now opens with the push of a button, as intended.

I also made another improvement on the design by using glass reinforced PLA. Now the finished product is much improved from the weak, fail prone sprocket that came with the door.

Un'altra persona ha completato questa guida.

Asher Meekhof

Membro da: 15/05/2018

97 Reputazione

1 Guida realizzata

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