Re: RAMPS for Due!
Quotebobc Therefore, without ability to control manufacture or use of the boards, I would rather not define any hard and fast rules for where pin 1 should be on particular connectors. Understood, and...
View ArticleRe: Constructive criticism sought
Thanks! Yeah. I've followed Roy Cortes and Panucatt for a while now. He makes these drivers that have the fault, decay and vref pins broken out on the board. Might as well use them. :) I saw that...
View ArticleRe: RAMPS for Due!
Quotebobc There is an issue with homing, which doesn't always seem to work, and I get lots of position shifting during printing, even at low speed/accel. I couldn't find a combination of settings that...
View ArticleRe: Electronics help needed - rather urgent!
Thanks for the clarification, NoobMan - much appreciated. We're currently looking for linear actuators in the UK and seem to be consistently hitting a cost limit of around £55 (which is probably a...
View ArticleRe: Megatronics v2 problems
I also have a problem with the LCD not working. Without any LCD options made in the config file the board uploads ok and it responds in 'printer interface' correctly. No documentation at all :X about...
View ArticleRe: Electronics help needed - rather urgent!
Also to add to the questions regarding motors, If I am using a pololu driver (A4988 for example, 3.3V or 5V, 1A etc) what would be the difference in performance between a linear stepper motor rated at...
View ArticleRe: Electronics help needed - rather urgent!
QuoteDMTDisaster Also to add to the questions regarding motors, If I am using a pololu driver (A4988 for example, 3.3V or 5V, 1A etc) what would be the difference in performance between a linear...
View ArticleRe: z-axis motors problem
When the motors are powered and enabled but not ordered to move, they hold position, so you are not able to move them by hand - that is perfectly normal. When you send a movement command all motors...
View ArticleI2C DS1307 AT24C32 RTC Module Testing Code on Arduino Platform
Testing code of I2C DS1307 AT24C32 RTC Module prepared by ICStation for your reference and usage. Thanks! [www.icstation.com]
View ArticleRe: I2C DS1307 AT24C32 RTC Module Testing Code on Arduino Platform
personally im a bit reluctant to download a zip file form someone that has only 2 forum posts and almost no real explanation of what it is. Might just be me though
View ArticleRe: Constructive criticism sought
Looks good. From just looking at the PCB, some suggestions: 1. Move the stepper boards as close together as possible, and allow for Molex KK connectors for the motor connections (same 0.1" pitch)....
View ArticleRe: Constructive criticism sought
Fuse holders look like they are Keystone mini-ATO type [www.digikey.co.uk] I came to the conclusion that the RAMPS 1N4004 D1 is ineffective, the surge rating is only for a few ms, whereas it takes a...
View ArticleRe: Constructive criticism sought
@ Bobc, you're right on the money. Keystone 3568. And I'm re-visiting the diodes. Eliminating them actually and moving to something else, maybe a MOSFET for reverse polarity protection. @Cefiar,...
View ArticleDriver and stepper getting hot really fast, but working
Things were going well on my startup of printer with ramps 4.1 on arduino mega. My x axis stopped working suddenly. I had a spare driver and that got things working again. When I started back up, I...
View ArticleRe: RAMPS for BeagleBone
After struggling to come up to speed with KiCAD, I have an initial verison of the CRAMPS board ready for FAB (checked into github. I will do a final DRC, manual review, and check-plots after sleeping,...
View ArticleRe: Driver and stepper getting hot really fast, but working
I just tried connecting y axis stepper to x axis on ramps, and x to y also. The same thing happened to the x axis driver and Y axis motor. So its not the stepper or cable as the y axis/x motor did not...
View ArticleRe: Driver and stepper getting hot really fast, but working
Have you tried adjusting the current on the driver? sounds like you have it set to high. Look that this page for a bit more info [reprap.org]
View ArticleXmega based design?
I'm just starting out building my first printer. I plan on using a RAMPS board as I put together my own Arduio 2560 mega board using a bare board off ebay and some samples from Atmel. Now I'm...
View ArticleRe: Electronics help needed - rather urgent!
Thanks again NoobMan! I was originally also worried about oversupplying the motor with too much voltage, but seemingly found that with these kinds of motor drivers it doesn't seem to matter how much...
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