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Have you tried adding a brim? It won't defeat all warping but it can really help. I use maybe 10mm on difficult prints.
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csambrook
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Ormerod
Quotedc42
Quotecsambrook
Let's imagine we have two bits of electronics powered from separate 12VDC power sources and that the power sources do not connect the DC negative to ground. Each is therefore free to float its rails some way off true ground provided its the DC negative and DC positive both float together and stay 12V apart. Each bit of electronics is happy in itself as it only sees the
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csambrook
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Reprappers
Quotealan richard
Well that's all very interesting but it still doesn't answer the question as to why anyone should connect their reprap power DC negative to ground.
I'm not saying you shouldn't. I'm still only asking why.
-a
It's a signal integrity issue with comms paths. Let's see if I can explain...
Let's imagine we have two bits of electronics powered from separate 12VDC power sources and
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csambrook
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Reprappers
Quotetadawson
I honestly don't understand what pins you are pushing on, but do know that if you have that tenuous a connection, more heating, burning, and board damage is in your very near future. Myself, I would upgrade to screw down strips (same style as the heater outputs) in the appropriate size, or at the very least, replace the entire connector pair - once a contact overheats that bad, it l
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csambrook
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Safety & Best Practices
Quotesarf2k4
Thank you for your reply, I probably going to have myself a terminal block just like the power output probably this weekend fitted on to the power input. As I understand right, this kind of terminal block has a high contact points especially paired with flexible multi strand wire right? A solid core weren't good to be used for these as well?
Correct me if I'm wrong
That is quite a
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csambrook
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Safety & Best Practices
Quoteitchytweed
Quotesarf2k4
Let's say I'm running my bed at 110'c with 270'c extruder, how much amp would that be pulled?
I am using geeetech prusa i3 and the pid thingy should be default values, nothings changed
Can't answer question. No usable information. Need two out of the three pieces of info listed: voltage, amps, resistance. If I have volts and resistance, amps is a simple calculation.
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csambrook
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Safety & Best Practices
Quotesarf2k4
I am unable to upload pictures of the cable used, i will upload after i bought another cable. I just checked some stores for extension sockets for reference, i found the thickest is 1.25mm2. I am confused by this number and the awg chart references on which i should refer, mm2 or the mm?
The hole in the pcb i think should be around 1mm was it? If i were to use a 1mm copper wire, tha
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csambrook
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Safety & Best Practices
Quotesarf2k4
Quotecsambrook
Quotesarf2k4
Quotecsambrook
Quotesarf2k4
Hi, I wanted to ask you guys about this problem, I got my terminal connection burnt last night after about 4 stressful print in total of about 15 hours I think. Last night when I tried to heat the bed, it suddenly turned off when it reaches 70'c. I believe I am using a 10awg wire; quite sturdy wire with a diameter of around 2.5m
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csambrook
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Safety & Best Practices
Quotesarf2k4
Quotecsambrook
Quotesarf2k4
Hi, I wanted to ask you guys about this problem, I got my terminal connection burnt last night after about 4 stressful print in total of about 15 hours I think. Last night when I tried to heat the bed, it suddenly turned off when it reaches 70'c. I believe I am using a 10awg wire; quite sturdy wire with a diameter of around 2.5mm (copper).
The board has l
by
csambrook
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Safety & Best Practices
Quotesarf2k4
Hi, I wanted to ask you guys about this problem, I got my terminal connection burnt last night after about 4 stressful print in total of about 15 hours I think. Last night when I tried to heat the bed, it suddenly turned off when it reaches 70'c. I believe I am using a 10awg wire; quite sturdy wire with a diameter of around 2.5mm (copper).
The board has little solder plate left (pla
by
csambrook
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Safety & Best Practices
I don't know about your substantive issue but be aware that recent releases have a safety feature which prevents cold extrusion. That might be why the extruder doesn't work especially if the firmware knows the real temperature and the "60" you see is just a reporting artifact.
by
csambrook
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Ormerod
Quotedc42
QuoteFpex
Would a fan work also?
A fan increases the rate of heat transfer to the environment, so a fan is a good way of increasing the efficiency of a heatsink. From the pictures on the RepRapPro site, it looks to me that there is no heatsink as such on the regulator board, but there has been an attempt to use the PCB to carry some of the heat away from the regulator. I can't tell whe
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csambrook
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Ormerod
Right, I think we've settled on it being JST-PH6. I borrowed a plug to check against my printer but it's been in full use this evening so I haven't had chance to take it apart to check - sorry.
You have some choices:
RS, Farnell and DigiKey all stock the bits but it will cost you.
Alternatively there's ebay at about £4 plus a wait:
Or Technorobots:
for the housing £0.06
for the pre-wired c
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csambrook
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Stepper Motors, Servo Motors, DC Motors
Well there's your answer.
The ones you bought weren't 2mm but 2.5mm pitch. They are JST-XH series, sadly JST make loads which look the same in pictures but are incompatible.
Sadly I don't think your new ones will fit either as they are JST-ZH series which are different again.
Which country are you in? (Actually, where's it easiest for you to buy from?). I'll look up something suitable and se
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csambrook
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Stepper Motors, Servo Motors, DC Motors
Quotegordonendersby
I came across one company in the US but they were pretty expensive.
And farnell sell pre crimped wires to go in the housing but they were very expensive.
The 2mm ones were definetly too big for my nema 17 steppers.
Gordon
Any chance you could post the *exact* spec of these too-big ones?
If you bought from somewhere like Farnell then their product code or whatever
Also the e
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csambrook
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Stepper Motors, Servo Motors, DC Motors
Hmm, I think they are JST PHR-6 which is indeed a 2mm pitch connector. What did you order exactly and where from?
Of course we're assuming your motors use the same connector as mine!
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csambrook
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Stepper Motors, Servo Motors, DC Motors
Look out, JST do various ranges which look quite similar. If you PM me tomorrow during the day as a reminder I'll look them up on our database and might be able to help.
by
csambrook
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Stepper Motors, Servo Motors, DC Motors
Quotedc42
Quotecsambrook
So I spent a happy lunchtime snooping through the codebase and I suspect my comments above about the filament numbers being based on the previous layer only might not be for dc42 or zpl at all but rather for whoever maintains slic3r. It seems that slic3r scatters G92 Z0 commands through the gcode and specifically between each layer which of course resets the filament "ho
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csambrook
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Firmware - mainstream and related support
So I spent a happy lunchtime snooping through the codebase and I suspect my comments above about the filament numbers being based on the previous layer only might not be for dc42 or zpl at all but rather for whoever maintains slic3r. It seems that slic3r scatters G92 Z0 commands through the gcode and specifically between each layer which of course resets the filament "home" and therefore the amo
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csambrook
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Firmware - mainstream and related support
Wow, dc42 you're a hero. Not only have you fixed this problem for me but other issues as well.
I had been sticking with the RRP main line of firmware out of some mixture of loyalty, nervousness and laziness and I was happy with my Huxley and it worked OK but was a bit rough around the edges. This issue with the part cooling fan forced me to move to your firmware fork as the main line simply di
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csambrook
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Firmware - mainstream and related support
Hmm, this sounds kind of similar to the troubles I had when I first set my machine up. The filament would randomly jam and I got to the point where it simply wouldn't extrude at all. What I found was that each time it jammed the hobbed bolt mashed the filament and distorted it, once that distorted part got to the extruder it jammed and the hobbed bolt mashed a bit further up the filament. Rins
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csambrook
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Printing
My Huxley and I were starting to get along fine and play together nicely, then the honeymoon period ended and I started to ask it to print ever more ambitious things and to get ever more picky about the results. That's when I started to notice some strange fan behaviour. I'd occasionally notice the fan kick in for just a fraction of a second and then spin down. And on parts with very small lay
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csambrook
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Firmware - mainstream and related support
Quotedc42
Hi Calvin,
The estimated end times should update. Which web interface are you using? The one I now recommend is DuetWebControl, available here .
Hmm, I think that's the one I tried that had multiple heaters. Assuming I'm doing it right it only loads the page occasionally and even then takes forever. That's on Chrome by the way.
I am right in thinking I just copy all the files into a
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csambrook
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General
Firstly, I'm glad to say that my Huxley is now going so well that I've started to look at the little niggles rather than having to fix the big issues. Thanks especially to dc42 for his help.
I print from SD card, largely because it seems like one less thing to go wrong during the print. I use the web interface which came with the software for the Huxley and it works great except for one small
by
csambrook
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General
Many thanks dc42, I can't explain why it stopped mid print although I have some suspicions about the quality of the cabling to the extruder. I can't say for certain but I think maybe the outer metal shield had managed to touch the back of one of the pins in the connector. That fault was probably cleared quite early in my investigation and doesn't appear to have caused any permanent damage.
The c
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csambrook
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Controllers
Quotedc42
FWIW, RepRapFirrmware for Duet electronics supports this feature as standard as of version 1.04. It's controlled by a gcode, which can also set the PWM factor on the pin. The pin is turned on with the specified PWM factor for every extruding move. I wondered why RepRapPro added this. Perhaps they are experimenting with paste extrusion too.
Oh, that's interesting.
I'm having weird probl
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csambrook
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Firmware - mainstream and related support
Hi all,
Hopefully someone with experience of the Duet controller can help me. I have a Duet controlled Huxley which is relatively new but has produced a few good prints so is basically sound. Suddenly the extruder stopped working mid print and investigations point to the Duet (the motor and cable both work when connected to the X drive and the X drive cable and motor don't work when connected
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csambrook
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Controllers
I have suffered this too. The heater came on when power was applied and nothing would turn it off. The thermistor was measuring the temperature OK so it wasn't a wiring problem. Eventually it turned itself off but I've no idea why which is quite worrying as I suspect it will happen again one day.
by
csambrook
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Huxley
Ha, same problem here except in mine the yellow and green are reversed. I emailed support but no response yet. Trainee on the manufacturing line?
by
csambrook
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Huxley
