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May 2017

When I’ve encounters issues like this it has been down to the temperature gradient between extruder and bed, and or the extruder temp not been high enough for the material been used (I’ve found this can vary by brand) try hoping the extruder temp by 10-15C and the bed temp by 5-10C.

Have you tried reducing first layer print speed? I don’t have a i3 Plus, just a v2 and v2.1, but when I troubleshoot, I like to turn down print speed much lower just so I can watch what’s happening easier. If you’re printing directly to glass without something like hairspray or glue, it can sometimes be hard for material to stick when printing quickly.

I can’t tell from the video, but I assume the fan is off for the first layer, otherwise that would cause issue as well. As far as the filament curling out the nozzle, that’s normal for all my printers, just one side will naturally cool faster and give it a curved look.

Anyways, try going as far down as 10% print speed just to see what happens and even raising the extrusion temperature a bit to see if it grips the glass better. Just my two cents.

Haven’t seen you switch out filaments? Have you tried a different brand?

I think you should start with PLA and get a hang of the settings. i.e leveling, quality, etc then move to ABS.

ABS needs hi-temp + optional ABS glue/slurry to get the first layer stick to the bed, PLA doesn’t 60 bed temp would be enough.

Try HATCHBOX 1.75 PLA and see if it works out then it’s ABS filament.

For the nozzle yours should be ok as far the video shows but the best ones out there are Micro Swiss Mk10 All M​etal Hotend Upgrade Kit 4

That doesn’t need PTFE tubing at all and also makes it easier to insert filaments. I the stock one was the worst.

Also did you took the buildtak surface on your bed?

I will certainly try reducing the speed and increasing temperature. You’re right, the videos do not show it but the fan is indeed off.

I could try different filaments. But this one I’ve printed a lot with before the mysterious something happened.

Also, although I mentioned I heated to ABS temperature, I am using PLA made by Inland.

I will order the Micro Swiss hotend. I like the fact it’s all metal, and one video I watched said it lets you print at higher temperatures, opening the door to other materials. Looks like it’s worth the upgrade.

I thought I had damaged the original buildtak surface. It was certainly after I gouged it the problems started. I first replaced it with the spare that came with the printer (way easier to remove and clean than I’ve read). When that didn’t solve the problem I switched to glass.

I should have been clearer in my post: I’m using PLA. The picture I took was after pressing the preheat button for PLA - it got up to 54°C and my thermometer read 50.8°. I tried at various temps and found the thermometer read 3-4° lower than what the printer’s LCD tells me. That was the point I was trying to make. The actual gcodes heated higher (I’ll have to look them up)

As for slicer: I’ve used mostly Slic3r. I’ve tried Cura but found it a bit more difficult. Also, many videos I’ve tried to follow used Slic3r, so using it made it easier to follow.

I can’t wait to try calibration tests - I just can’t get past the first layer or two right now. Although I’ve not varied the flowrate - I’ll give that a try.

I thought Wanhao fixed this. I just bought the printer a week ago (although it could be old stock - I should check the serial).

In any event, I’m not using ABS yet. When I do, I will certainly be careful.

Thanks for the encouragement. What’s the best way to get that initial drip off before printing? I use a stiff card and just kinda scrape it off (usually works, sometimes pushes it more against the nozzle). If there’s enough hanging I chance using my fingers. Said “ouch” once or twice, but no real harm done.

I will probably try hairspray first. The skirt definitely looks like it should help (I said “brim” in my OP, but I meant “skirt”). As you see in my first vid, it didn’t work (not to say I will stop doing that! it still is a good idea)

I don’t even know how, yet, to make changes like this. There’s a menu called PID, but I don’t know what it’s for and am not going to mess with it until I do.

Yup, lots of reading, youtube watching. I am so happy with how eager to help and share the community is (just look at all these responses in less than a day!).

Definitely getting that feeler gauge! Thanks!

During the auto-level, the LCD says to level so the nozzle is 1 mm away from the plate. I know now that’s not correct, but for my first few prints I didn’t. I didn’t have anything 1 mm and I was impatient to print. So I used the spatula (0.7 mm). I printed the unicorn that came with the SD card, and it turned out fine - right out of the box. Weird.