SainSmart RAMPS 1.4 Imprimante 3D Starter Kit avec Mega2560 + A4988 + LCD2004 Panneau de Configuration pour Arduino RepRap * Manuel d'Etape Par Etape PDF offert *
Nous ne savons pas quand cet article sera de nouveau approvisionné ni s'il le sera.
- Veuillez télécharger les codes et la documentation sur la description.
- C'est le nouveau kit de démarrage de l'imprimante SainSmart 3D, spécialement conçu pour les débutants qui sont intéressés par l'imprimante 3D.
- Vous aurez un ensemble complet de composants électroniques les plus courantes et les plus utiles Sainsmart.
- Vous pouvez en apprendre davantage sur Sainsmart par l'utilisation de ces projets de base.
- SainSmart Mega2560 LCD 2004 et A4988 sont inclus.
Spécifications pour ce produit
|EAN||6955170832583 , 6959011500921|
Détails sur le produit
Voulez-vous nous parler de prix plus bas?
Description du produit
Sainsmart RAMPS 1.4 is a Mega Pololu Shield, or RAMPS for short, designed to
fit the entire electronics needed for a RepRap in one small package for low
cost. RAMPS interfaces an Mega with the powerful Arduino MEGA platform and has
plenty room for expansion. The modular design includes plug in stepper drivers
and extruder control electronics on an Arduino MEGA shield for easy service,
part replacement, upgrade-ability and expansion.
Sainsmart Mega2560 R3 is an ATmega2560 as core microcontroller development board itself has 54 groups digital I/O input/output terminal (14 groups do PWM outputs), 16 sets of simulation than the input side, group 4 UARTs (hardware serial ports), using the 16 MHz crystal oscillator. With the bootloader, download the program directly via USB without having to go through other external writer. Supply part of the optional USB power, or as an external power using the AC-to-DC adapter and battery. Arduino development IDE interface is based on open-source principles, allows you to free download for use in project work, school teaching, motor control, interactive works.
Sainsmart A4988 driver is a carrier board or breakout board for Allegro's A4988 DMOS Microstepping Driver with Translator and Overcurrent Protection by Pololu; we therefore recommend careful reading of the A4988 datasheet before using this product. This stepper motor driver lets you control one bipolar stepper motor at up to 2 A output current per coil.
1 x RAMPS 1.4
1 x Mega 2560 R3
5 x A4988 driver
1 x USB Cable
1 x RAMPS 1.4 wiring cable
1 x LCD2004 Control Panel
Note: Download doumentation & codes here:
Commentaires client les plus utiles sur Amazon.com
While all the electronic parts were packed in ESD envelopes, no thought or care was given to protecting the pins on the boards. I had one break off of a header on the RAMPS board, but I was able to remove that header and replace it with another.
The LCD display does not have the connectors labeled so you know how to connect the cables. The ribbon cables I got were not assembled correctly. The strain relief of one had broken off when it arrived and it didn't take long for one of the others to break off. There is one wire marked on the ribbon cable to indicate the first position. On one cable, it was in the correct position, but on the second one, it was assembled backward. Luckily the connectors themselves are keyed so you can't plug them in wrong.
While I bought this 7 months ago, I am only at the point where I can fully use it. I was having issues getting the Z axis motor to work and I finally traced the problem down to a cut trace. In debugging the problem, I separated the RAMPS from the Mega and found the back covered with scratches. There was an extra deep one over the trace to the Z step pin that broke it. I may be able to repair it, but this damage goes right along with the other poor packing I mentioned above. Because of this, I am reducing my rating down to 1 star.
Sain got a hold of me through email to see if they could help resolve the issues that I brought up in this review. I told them my biggest concern (which seems to only get more apparent) with this product is the fact that it is posted as "This is the new SainSmart 3D Printer Starter Kit, developed specially for those beginners who are interested in 3D printer." A key word in there is beginners. This kit is not for beginners. They linked me to the documentation that comes with it which is written as poorly as that description and provides no new information and certainly no "Step-By-Step" guide as promised. OK I will admit there are a couple of steps to follow, TO HOOK UP TO A LCD! I did not buy an LCD, I just bought RAMPS and the arduino. The document also warns that you need to make sure you order the phases of the motor up properly. This is a good tip, but since it is the only tip regarding the motors I think it is more hurtful than helpful. They provide a couple of schematics that can also be found by looking at the wiki pages for Ramps and for Arduino. I would recommend looking online as their representative responded to my arduino connection issues with this: "Besides, for the Arduino version of the Mega 2560, it is the R3 version. Please kindly have a try." I don't even know what that means. They also told me that they were sorry about misleading me and offered me $8.
If you know what you are doing and want to get your electronics cheap, then by all means go ahead and purchase, it will work, but also keep in mind that you will need jumpers to set the step size for the pololu boards and you will need heatsinks as well. The last thing is that I purchased this with Amazon Prime and was happy that it got to me quickly, looking at the posting at the time of this review I noticed that it is no longer eligible for Prime, although apparently that is temporary.
The things I liked: It comes with a nice plastic box which gives confidence that it was shipped properly and provide a nice place to keep any of the boards that are not currently being used, this was a nice touch. Also I like that it comes with the four layer version of the pololu boards as these run more than 20 degrees c cooler than the two layer boards. The black color is also kinda cool. Also I liked that it was Prime as I was able to get it shipped to me in just 2 days.
The LCD was another story. A transistor on the board was mangled and partially broken off. When I plug the LCD into the RAMPS board the entire ramps board goes dead. Maybe there's another short somewhere else, or maybe it's just a transistor. And the way the board is constructed you will have a very difficult time repairing yourself.
Now I'm in the position of shipping all of it back or ordering a new LCD. Given that it takes a while to get a 3d printer together, I would suggest testing the board before you let it sit around too long.