Re: Duet + Duex = happiness?
You might also like to take a look at my blog entry [miscsolutions.wordpress.com]. I describe using the Duet+X4 to control a dual nozzle Ormerod. There is a design issue with the X4 that causes a lot...
View ArticleRe: Duet + Duex = happiness?
Thank you, I was wondering why I wasn't seeing any significant mention of it, I'll head over to the ormerod forum and nose about :) I skimmed over your blog post (Well written and verrry long) so I'm...
View ArticleRe: Melzi on a budget?
I think you've already nailed the analysis. Cheap chinese boards often have issues with substitution. FET's might not be beefy enough to drive a heated bed, chip might not have the bootloader burned...
View ArticleRe: Duet + Duex = happiness?
QuoteUkIanI'm kinda tempted by a delta, they seem interesting, although I can't get away from the feeling that you're driving a thing on the end of very long arms. Duet + Duex + Delta = Disappointment...
View ArticleRe: Duet + Duex = happiness?
That's true, you would need to modify the Move module in the firmware to drive a delta. I maintain a fork of the Duet firmware at [github.com] (use the dev branch, not the master one) which has quite...
View ArticleRe: Hot end temperature variation when bed is also on
It sounds to me that you haven't separated the analog and digital grounds. The ground side of the thermistors and any associated smoothing caps should be connected to a dedicated ground pin on the...
View ArticleRe: Melzi on a budget?
On the contrary Traumflug, I DO support open source developers. In fact, I have purchased a fair number of parts directly from Chris ("Nop Head"). But since between Obamacare insurance costs and child...
View ArticleRe: Slow heating up on MK3 dual power heat bed:S
Lots of people on the Ormerod forum complained about long bed heating times to ABS temperatures. 120W isn't quite enough power. The solution most of us have adopted is to use a 12V PSU with a voltage...
View ArticleRe: Will this power supply work?
I used a less expensive Corsair modular PSU to power my Ormerod for a while and it worked very well. It was a CX430M.
View ArticleRe: Slow heating up on MK3 dual power heat bed:S
Also, which MOSFET is being used to drive the heaters on yout PCB? Current wisdom is that IRLB8743PBF or for extreme cases IRLB3036PBF be used, and the schematic I looked at on RepRap spec'd out...
View ArticleRe: Slow heating up on MK3 dual power heat bed:S
The three MOSFETS on my Ramps 1.4 are P55NF06L ; 7SABF ; V6 ; PHL 243. None of the ones you named there. Might this be the bottleneck ? I insulated the alu plate with a 3mm cork sheet. I just received...
View ArticleRe: Slow heating up on MK3 dual power heat bed:S
Quoteianmcmill The three MOSFETS on my Ramps 1.4 are P55NF06L ; 7SABF ; V6 ; PHL 243. None of the ones you named there. Might this be the bottleneck ? I insulated the alu plate with a 3mm cork sheet....
View ArticleRe: Slow heating up on MK3 dual power heat bed:S
Okay okay. Still I went from 1st PSU to 2nd wirings and now ended up with 3rd the MOSFETS. Switching the computer PSU (22A on 12v line) to the PSU I used with my Filament extruder (16A on 12v line)...
View ArticleRe: Slow heating up on MK3 dual power heat bed:S
Others should comment a well because I admit I'm biased. The fact that changing from a 22A to a 16A improved your temps does say the first PSU was having problems despite it's ratings. You really...
View ArticleRe: Slow heating up on MK3 dual power heat bed:S
You have already said that you are getting 11.99V across the heatbed terminals and that you are using a 12V power supply. This means there is nothing wrong with your mosfets or cabling. The problem is...
View ArticleRe: Smart LCD controller
i also use smart lcd controller but it has many problems.I am very worried about it . I think its use is also very difficult .I repeared it many times but the problem could not solved.
View ArticleRe: Smart LCD controller
Sorry for all the issues you're finding. Actually, I am loving mine. It was difficult to get setup, but thanks to Johnny from Ultimachine, I got the files I needed and get things setup. There are...
View ArticleRe: Melzi on a budget?
Why not go for a ramps/arduino setup? I bought a set for about 42bux shipped. It had the stepper drivers, smart lcd with sd card reader and a mega as a package. Smoking deal that I took a chance on,...
View ArticleRe: Melzi on a budget?
I wanted to go with the Melzi because that is what Nophead recommended for the Mendel90 - IIRC from his blog, he started with RAMPS or something similar and switched to Melzi. One thing about the...
View ArticleWhich LED/resistor combo to use?
I just purchased a MK2B dual-power heated bed to use on my Mendel90 project, using a 12-volt power supply (hacked ATX 600 watt PSU). What value/type/voltage/etc. LED and resistor should I use on it?...
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