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219.00 American hard earned dollars for a large format 3d printer. Hell Yeah Boys

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I never understand my motive. I always buy things cause they are cheep but when I get started using them I get mad because I buy junk, I would say china junk , but right nowadays most 3d printers are coming from there.

We have a never break policy to buy only American, did I mention this costs 2 hundred bucks, I'm a sucker. Policy well I guess I'm a hypocrite,  I'm so glad china doesn't make General Aviation Planes or helicopters cause I'd surely be in the ground.

Somewhere in this forum we are building a hight temp 3d printer and it required a large print that exceeded the ender 5 we have and are using as our production machine so welcome to the Team Longer.

Screenshot 2020 10 23 at 8.05.11 PM

 

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This is 11 hours into a base print. I used a fan off a new head kit from another printer, it makes crazy airflow and the prints now appear top quality. I want to change out the air duct i printed but with this quality I will just keep printing until it needs service. 

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 This is the best part I have printed yet. will post the settings 

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The printer had been making parts at a great pace then It started getting an error on the display. what was happening was the head temp would not get hotter than 180, it just stuck
Heat Temp not exceeding 180 degree

I could reset the machine but it would error during prints. 
My first attempt was to update to marlin 2.o  but still error

I then changed the hot end but then realized the temp probe had almost fallen out. The screw was stripped in the aluminum block, this screw holds the probe inside the hot end block.

Either way I replaced both the heat element and temp probe. 

Wires pushed directly through the case to the mainboard not wired through the connectors.

The heat element and temp sensor purchase was 12 bucks for 5each so it was quick and inexpensive`.

My current prints are back to a good solid quality

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Pay attention in the beginning and make adjustments based on what you see and the strength of the part

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 This picture illustrates the start print on the left until the final one on the right. Conditions on the beginning of the print caused lifting and deformation. Reducing the bed heat until the final result is acceptable. the print stays on the plate and the print is dimensionally correct 

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as you can see on the fourth try it's almost there but some separation is evident. 1 strand. There are other conditions that can be causing this and adjustments will be mage and results posted. 

 

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Ok big update: It's 1 year in service and this unit finally put me to the task. It Broke and it was a hard troubleshooting. 

condition: error with head heater 
The unit just wouldn't print right, the head kept clogging and things were not right.
I replaced the head with a unit that had the heat break, changed the tubing and still just didn't print right

Finally after watching the control panel heat the end then the bed it became apparent the bed was taking the heat cycles and not letting the nozzle maintain the 220 temp.

There is a trouble shooting video for the bed resistance and this checked out good. Turns out the mainboard just wasn't up to the task any longer. Fortunately I had a removed board from a system duet2 upgrade , after installing it's BACK UP!   started a print job and it's into it 35 hours, 55%, so far so good.  
For the purposes of the cheap large scale printer I wanted to stay as close to stock as possible so to continue the production and learning using a off the shelf unit with OEM parts

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