Re: My attempt at the cheapest control board possible.
Sorry about taking so much time to return. I couldn't find a camera which would work properly, but what matters the most is the schematic, I guess. Check the attached file for that. I got it to work,...
View ArticleRe: Broken USB port on Melzi
Have been looking online for a replacement with no luck, anyone know? Thanks
View ArticleRe: Broken USB port on Melzi
If I have it right, (I'm trying to remember what mine looks like) there are a lot on ebay. For example one I found. Item number:110808694625 Or search for "Mini USB SMT PCB Socket"
View Articlehall-o connections
Can someone help me to understand how the hall-o board is supposed to be connected to RAMPS? The main page in the reprapwiki literally says to just connect it - no guidance whatsoever. The text seems...
View ArticleRe: repstrap electronics
Update: I got my electronic all hooked up and running. I ordered a stepper motor driver for the hot end and it should be here today. I'm hoping I can get it to work on the out put of the fet-3 driver....
View ArticleStandby generator- is that a good option for continue power supply?
Hello All, I am new to this forum. I am a little bit confused about the frequency or power of a standby generator. I am looking for a standby generator that can solve power cut problems with automatic...
View ArticleRe: Standby generator- is that a good option for continue power supply?
If your power supply to your house is so bad that you need a generator to run your reprap then maybe running it off a car battery might be an idea. Leave the charger perminantly connected and also...
View ArticleRe: repstrap electronics
So hooking up the extruder stepper was super easy! I got a easydriver stepper motor driver from sparkfun. Then I soldered The step and direction to the aux input of my fet 3 board, and added it as...
View ArticleRe: Standby generator- is that a good option for continue power supply?
depending on where you are you might have a few options available. like a larger UPS. a couple of car batteries with a good sized inverter. it comes down to how long you need it to run and how much...
View ArticleMelzi connection/freezing help
I have a RepRapPro Tri-color printer with dual Melzi controllers. I did love it up until a few days ago. It started doing this thing where the printer loses connection with the computer mid way...
View ArticleRe: Melzi connection/freezing help
i dont know why but this reminds me of a issue where your grounds on your reprap ps and computer are not grounded at the same level. dose it have the same issue with the reprap ps turned off /...
View ArticleRe: Melzi connection/freezing help
dissidence, do you mean with the board running the board on usb power? Thats a good point. Now I am running the machine but with everything off. No heat or printing. I will let that run for a while...
View ArticleRe: Sanguish development
I have not used my Sanguish as much as I would have wanted to but here's what I did have issues with (sorry I always believe Beta is the time to mention that more than whats good - good there is but...
View ArticleRe: Sanguish development
Yes, current setting is a bit more cumbersome than on pololu's. The current is set by a combination of current sense resistors and torque jumpers. The resistors I have been using are 1 ohm and 0.5...
View ArticleRe: Melzi connection/freezing help
Ya that's the idea to see if it might be a issue between your computer PS and reprap PS.
View Articlestrange thermistor behaviour and shut down in the middle of a print (GEN7)
I was succesfully running my printer for more than a year now, but during the last days a strange thing happens once every 2-3 hours. during a print the whole printer shutsdown (motors, electronics,...
View ArticleRe: Melzi connection/freezing help
So I let it sit on with the regular PSU for a while and it did freeze at one point. It was about 1-2 hrs before it frooze. I'm not sure I didn't watch the whole time. Then i switched the jumper to usb...
View ArticleRe: strange thermistor behaviour and shut down in the middle of a print (GEN7)
Check for a short (most likely) or open wire to the thermistor. Make sure you're moving the X/Y/Z around as you may find it only happens with a bit of movement. Re: A short. You may have a short...
View ArticleRe: strange thermistor behaviour and shut down in the middle of a print (GEN7)
Thank you Ceflar, Ill check for a short which is a way better fault than a faulty thermistor, its a hell to get to the cables again as they are full of capton tape, but your suggestion to look closely...
View ArticleRe: Sanguish development
So 0.25ohm would give 2A? (my nema 23's I wanted to push it to the max with are 2A) - nice burn in test - if it runs that without smoking it's perfect PS: Is the board 24v compatible? (obviously will...
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