Elecrow Arduino CNC Shield V3.51 - GRBL v0.9 Compatible
Description
- Elecrow Arduino CNC Shield V3.51
- Includes Noise Filters on all endstops and the probing pin
- Is compatible with GRBL 0.9 and offers 4-Axis support
- Has 2 x End stops for each axis
- Uses removable Pololu A4988 compatible stepper drivers
The Elecrow Arduino CNC Shield V3.51 - GRBL v0.9 Compatible is a simple Arduino CNC shield kit (Arduino Extension Board) with the following features: New with Version 3.51 Added circuitry for End-Stop and Probe signal filtering. This eliminates false triggers and makes it possible to use non-shielded cable for end-stops/probes.

Bigger Solder pads make it easier to assemble. Probe pin labels have been updated to make it easier to install a probe.
- 1 x Elecrow Arduino CNC Shield V3.51 - GRBL v0.9 compatible - Uses Pololu Drivers
- Initial Weight: 33g
Worth buying this original over the problematic Asian clones. V3.51 has enough improvements to make it worthwhile upgrading over the previous versions. Great way to squeeze out every bit of GRBL capability in an easy-to-use package. I too would like to see schematics published, but understand the manufacturer's reluctance.
Cela vaut la peine d'acheter cet original par rapport aux clones asiatiques problématiques. La V3.51 a suffisamment d'améliorations pour rendre la mise à niveau intéressante par rapport aux versions précédentes. Excellent moyen de tirer parti de toutes les capacités de GRBL dans un package facile à utiliser. Moi aussi, j'aimerais voir des schémas publiés, mais je comprends la réticence du constructeur.
Les ports pwm et sonde valent bien la mise à niveau de la carte v3.
C'est un produit de haute qualité et cela fonctionne bien. Cependant, je ne l'utilise pas pour son application CNC prévue, mais simplement comme plate-forme physique pour trois pilotes pas à pas plus I2C. Les steppers fonctionnaient bien, mais pas l'I2C. Le hic que j'ai trouvé était que la ligne SCL a un pull-up vers Vdd et cela empêche l'I2C de fonctionner. ce n'était pas une bonne idée de soulever la résistance, j'ai donc simplement isolé la ligne SCL et connecté directement à l'UNO. Il n'y a pas de diagramme que je puisse trouver qui reflète le câblage de cette version avec ses résistances de pull-up par exemple et il a donc fallu sonder avec un DVM pour découvrir le problème. Je me rends compte que je l'utilise en dehors de son application prévue, mais néanmoins il devrait y avoir un schéma correct disponible pour le dépannage.
This is a high quality product and it works well. However I am not using it for its intended CNC application but simply as a physical platform for three stepper drivers plus I2C. The steppers ran fine but the I2C would not. The snag I found was that the SCL line has a pull-up to Vdd and this prevents the I2C from working. it was not a good idea to lift the resistor so I simply isolated the SCL line and connected directly to the UNO. There is no diagram that I can find that reflects the wiring of this version with its pull-up resistors for example and so it required probing with a DVM to uncover the problem. I realize I am using it outside its intended application but nevertheless there should be a correct schematic available for troubleshooting.
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