Gen7 Endstop 1.3.1

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Gen7 Endstop History   --   Gen7 Endstop is part of Generation 7 Electronics
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Gen7 Endstop

Release status: working

Gen7 Endstop 1.2 Assembled.jpeg
Description
Part of Generation 7 Electronics
License
GPL v2
Author
Contributors
Based-on
[[]]
Categories
CAD Models
External Link
(none)

This is an optical endstop compatible with RAMPS, Sanguinololu, Generation 7 Electronics and all other electronics expecting a digital 5 V signal. Simple, affordable and easy to build.

How to get it

PCBs

Get Gen7 Endstop PCBs from Traumflug.

As Gen7 is designed to be manufactured on a RepRap or by other DIY methods, you can make PCBs yourself, of course.

Yet another way is to purchase from one of the many houses specialized in manufacturing prototype PCBs. Gen7 is single sided, so this won't cost a fortune.

Electronic components

Get Gen7 Endstop Components Kits from Traumflug.

If you want to assemble the collection yourself, see the #Parts List section.

Assembled Boards

Get Gen7 Endstops from avrthing.com in the assembled boards category.

Parts List

Name Count Designations Vendors Remarks
Resistor 180 Ohms 1 R1 Reichelt Völkner Farnell RS Digi-Key Mouser
Resistor 1 kOhms 1 R2 Reichelt Völkner Farnell RS Digi-Key Mouser
Resistor 2.2 kOhms 1 R3 Reichelt Völkner Farnell RS Digi-Key Mouser
LED 3 mm Red 1 LED1 Reichelt Völkner Farnell RS Digi-Key Mouser
Photointerrupter TCST1103 1 U1 Reichelt Farnell RS Digi-Key Mouser This one is without mounting flange.
Alternative Photointerrupter TCST2103 1 U1 Reichelt Völkner Farnell RS Digi-Key Mouser This one has a mounting flange which might help mounting.
Molex KK100 3 Pin Header 1 CONN1 Reichelt Farnell RS Digi-Key Mouser Reichelt are tested to be fully compatible with Molex
Cable Connector for the above 1 Reichelt Farnell RS Digi-Key Mouser
Crimp Contact for the above 3 Reichelt Farnell RS Digi-Key Mouser

Assembly Instructions

  • To find out which components to put where, have the layout on your PC screen available.
  • PCBs fabricated with Voronoi paths need more heat, so raise your soldering iron's temperature by about 20 deg Celsius.
  • Start with the flattest parts, usually wire bridges or resistors. This way, components won't fall out when you lay the PCB on it's front for soldering. Then continue with parts of raising height, connectors are usually among the last ones.
  • To ease soldering jumper headers and similar components, put a small drop of cyanacrylate glue onto the component side before inserting them. As the PCB is single-sided, this won't hurt the solder point.
  • Take care to not overheat the photo sensor. Solder one pin on each side then pause for a minute before continuing.
  • As LEDs have to be inserted the right way they have legs of different length to indicate polarity. The longer leg (+) goes into the hole closer to the photo sensor and the shorter one (-) into the hole closer to the border.

Assembly in Pictures

Click on the pictures to view them bigger.

Now we're done, these pictures show the work of StevBrennan:

Gen7 Endstop 1.2 Front.jpeg Gen7 Endstop 1.2 Back.JPG


Assembly on Veroboard in Pictures

If you don't want to etch or buy an endstop board, here is a veroboard version.

Click on the pictures to view them bigger.

Setup

TBD