Sorry, need to revise my last post.... WATCH OUT FOR CHEAP ATX POWER SUPPLIES! I've got load resistors on the 5v lines and the brown power ok line is hardwired to 3.3v by default. Motors and extruder consume 2.18A. Heated bed consumes 6.3A. My new so-called 550W ATX PSU is supposedly rated to max 17A on the 12v lines and IT CAN'T HANDLE EVEN THE HEATED BED ON ITS OWN! The 12V 120W (10A) stepby TooManyToys - General
I've just gone through the same thing upgrading my Prusa with a RAMPs controller and heated bed. A 250W PC power supply such as the one shown in the pic should do fine. That will provide up to a peak of 17A on the 12V rails which is enough for the motors, hot end and and a heated bed. The trick these days is finding a PC power supply as SMALL as 250W! I went to my local PC supplier and asked fby TooManyToys - General
With some apologies for bumping an old thread, I'd like to add my 2 cents worth here. I purchased a 3dStuffmaker Prusa kit early this year. I was initially lead to believe they were an Australian company as their website indicates they are in Penrith NSW, Australia, just down the road from where I used to work many years ago, so I thought great, I'll get this kit shipped to me in a couple of dayby TooManyToys - General
Thanks PaladinCloudring, that's what I was hoping to hear. If the only choice was a $95 upgrade kit I'd say stuff it and put that money towards a Ramps, but the under $20 solution sounds the way to go. I've looked at the Marlin & Repetier config files at it looks like Repetier has put a fair bit more fine tuning in so I can see how it would be improving print quality. Totally agree about tby TooManyToys - General
It's the documentation that I tend to struggle with. As a general rule of thumb, engineers, programmers, developers, all tend make lousy documenters because they/we can be too familiar with the product. Documentation, unless prerequisite knowledge is specified, should always be written for complete newbies. Don't use jargon, don't use assumed knowledge. Write down every step, then go back anby TooManyToys - General
Hi Couby, So the USBTinyISP worked. Excellent! I'll go with that. I didn't want to spend $95 on 3DStuffmaker's upgrade kit without knowing what the end results might be, but $10 to $20 on a USBTinyISP is definitly worth a try. Thanks for the tip! "if it is still not working, tell us..." That's funny! In other words "we don't have a clue, you work it out yourself and tell is if you fix it".by TooManyToys - General
Hi Prober, That's the point at which I've ground to a halt. This particular Gen6 board has no bootloader, so I'll need a USB device to provide that before I can update the firmware. 3DSuffmaker sell their "upgrade kit" for $95, though I could possibly buy something like a USBTinyISP for much less that should (hopefully) do the same thing. The question I have is - is it worth spending money onby TooManyToys - General
Hi all, Another Aussie here who recently purchased one of the 3DStuffmaker Prusas from their Christmas promo. Decided on this one because I was under the impression it would be shipped fairly quickly from Sydney (and it was well priced).... Well, I got one out of two there. Fun to build, but so far I'm undewhelmed with print quality. Could I please get some opinions/advice from anyone here whoby TooManyToys - General
Deleted my previous post so I could ask question in new topic.by TooManyToys - General