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Where is your Z_HOME_POS ?
That should be 209.1....
by
Traveltrousers
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Mendel90
You can also try adding a 1mm x say 20mm tab to each corner which you would have to cut off afterwards...
You could also try pointing some 100w incandecant bulbs at the print....
Just put it in a large carboard box and cover it... you'll soon figure out if this is the optimal solution.
by
Traveltrousers
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Mendel90
Well their significance was a little greater than zero, I ran the m303 after waiting for the print to start for about five minutes and it fluctuated from 240 to 255 but after commuting the new PID values the exact same print worked right away...
Seems strange that a metal hotend would need constant cooling and plastic jhead doesn't....
by
Traveltrousers
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Mendel90
previous PID was :
#define DEFAULT_Kp 10.45
#define DEFAULT_Ki 0.88
#define DEFAULT_Kd 31.17
with fan on and ABS its
Kp: 10.63
Ki: 0.85
Kd: 33.08
trying a print now...
by
Traveltrousers
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Mendel90
After following the instructions, namely mount the head, run PID auto-tune and then mount the fan I can't print at 250 degrees... it seems the mini fan being on permanently keeps lowing the temperature and resetting the M109 command...
should the fan be on all the time? Also, shouldn't I run PID with filament in the nozzle, surely this will effect the result...
I'm running PID again now with the
by
Traveltrousers
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Mendel90
Well it can go to 300 degrees (400 with a thermocouple) and you can use different nozzle sizes... and it looks loads better!! :p To my mind it's obviously better than a j-head, the question is whether it's 43 quid plus VAT better....
by
Traveltrousers
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Mendel90
From their site:
"Improving Performance for Flexible Filaments.
Flexible filaments are amazing and open up a huge range of possibilities for new practical applications in 3D printing, and they're also just plain fun. However printing them can be really hard work, especially in 1.75mm where the lower diameter of the filament results in a filament that has mechanical properties similar to that of
by
Traveltrousers
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Mendel90
@nophead
Well according to sanjay at E3D the v6 fixes any jamming problems and it's mainly a 1.75mm + bowden issue anyway, hardly something that affects the M90... I lost about 11m of build height over the jhead and since I'm unlikely to print anything that high it's not a major issue, in any case it might be better and stronger to print parts like that at a 45 degree angle across the bed (assum
by
Traveltrousers
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Mendel90
@Neil:
I'm not so sure, the problem of the height difference on the lip is solved easier with a 16mm washer. The fan would still need to be changed since the heater block is so large.
@Ralph:
I uploaded my adapter to thingiverse for your fan. A new fan would probably be quite popular as I predict E3d getting lots of sales, they're already out of stock....
I might have a go at making my own vers
by
Traveltrousers
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Mendel90
Seems like putting the head together was the easiest part.... everything else.... well...
As Mendel90 reported in another thread the metal lip where you lock it down with the three bolts is about a millimeter less than the regular jhead... I tried bending the washers which didn't really work before drilling off a larger hole where the bolts go into the x carriage. Time to reprint that part anywa
by
Traveltrousers
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Mendel90
Put your printer inside a large box with the 3 sides taped up so they stay together, put something on the top (I use a expanded polystyrene base from a fridge delivery). I also put a blanket on top.
If you're slicing something then start the heater bed temperature early, it takes a while to get to 100+ degrees. You can also put something on the bed to insulate it a bit so it's quicker.
If you'r
by
Traveltrousers
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Mendel90
Excellent Ralph, thanks.
My V6 arrived this morning and I'm printing the fan now.... I knew there was something I should have started off last night before I went to bed....
Anyway, it looks good and was pretty easy to put together following Thomas Sanladerers video guide, which was really useful because the E3D documentation on their site is slightly lacking, mentioning photos that don't exsis
by
Traveltrousers
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Mendel90
I saw that Ralph, good work but I think the fan hole won't be big enough....
I guess I can have a look at the scad file but Im an Inventor guy and everytime I look at those files my brain goes funny
by
Traveltrousers
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Mendel90
For future reference jammed PLA turns to chewing gum consistency in boiling water....
by
Traveltrousers
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Mendel90
Nice! I wish I had timelapse of my build, but I made mine in a room the size of your table so....
by
Traveltrousers
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Mendel90
I pulled the trigger on a new hot end yesterday that might tempt a few of you, I was waiting for their 0.8mm nozzles to come back in for the V5 and then discovered the V6 has been released for the same price as the V5 and it's 10% off this weekend...
Picked up some bridge nylon to try too....
So.... can I just follow the instructions for the V5??
The V6 uses the ATC Semitec 104GT-2 thermistor
by
Traveltrousers
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Mendel90
Manual intervention is another thing to forget :p
I'm waiting for they day when I can just go from a model to 'print' and it rotates itself, decides on support, layer height, whether it needs a brim or other features, starts the printer, prints it, auto ejects it (into limoene if it has supports) and texts me to say it's done. All I have to do is keep the filament full...
Auto z-height calibra
by
Traveltrousers
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Mendel90
QuoteElectroWomble
Doing this a few times ... out by 0.02 - 0.05mm each time
I mostly print at 0.3mm layers so this margin of error would be fine with me....
by
Traveltrousers
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Mendel90
If I were to implement this I would also use magnets in a similar way and then when the print finishes and the head re-homes a small lever on the central support could push the probe back down ready for the next print.
No manual intervention required.
It would be great if we could collectively implement this for stock nophead M90's....
by
Traveltrousers
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Mendel90
Installed a couple of days ago and it's working well, thanks....
Can I suggest you structure the zip so you just unzip it into the arduino folder.
Now I might have no excuse but to work on a auto bed leveling device.... preferably one with no extra servos....
by
Traveltrousers
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Mendel90
I now realise it's a machined block :p
http://reprap.org/wiki/J_Head_Nozzle
Nevermind.... maybe a E3D is in order....
by
Traveltrousers
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Mendel90
Has anyone done this?
Are they standard sizes? I was sent a load from 3dfileprint for free, they're 0.4mm so I thought they were useless but I would like to experiment with larger sizes for faster printing....
Has anyone tried 0.6, 0.8 or even 1mm printing?
by
Traveltrousers
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Mendel90
nice work!
Post a video so we can see it in action!!
by
Traveltrousers
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Mendel90
There is a bug report about it here : URL
Someone proposed a solution but never added it, I took the liberty of doing it this afternoon....
by
Traveltrousers
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Slic3r
Edit the text ini file in notepad and save it....
I get that bug too....
by
Traveltrousers
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Slic3r
I thought I broke my Melzi 2 weeks ago, it's not fun soldering to that board....
Apparently you can connect using a serial connection....
Might be nice to figure it out and save some money...
by
Traveltrousers
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Mendel90
If you print it in ABS and then only print PLA it might be ok. I would print it vertically though, printing it horizontally looks like an invitation for layer seperation.
Or head to your 'dollar store'. I bought a pack of 10 bulldog clips, with 5 tiny ones that fit perfectly with their clips for 59p from Home Bargains in the UK...
by
Traveltrousers
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Mendel90
In which direction is it misaligned?
by
Traveltrousers
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Mendel90
it doesn't, it's just a wizard....
by
Traveltrousers
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Mendel90
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