Mill Creek HOn30

[timwatson]

Maybe I'll shovel a few layouts out of the way. 

Feel free to shovel toward my house!

[Chris333]

sorry, 10" 8K printer

Jeff did you get the x10-8K or did you upgrade another printer?

[motofavorite]

I built a whole new tender for this old thing

Awesome looking tender. What trucks are those?

[Chris333]

My own trucks that take Kato caboose truck pickup strips. All the files here: https://www.thingiverse.com/thing:5479419

[motofavorite]

Thank you for sharing them. The locomotive reminds me of an S.A.R. NG7. The WDLR 2-6-2 could be a good starting point.

[Erock482]

lol

I tried everything. See one day I had a print and build plate hanging on the drip bracket and pressed the print button. The head came down and hit that breaking the bracket (just resin) the stepper started grinding.

Next time a print failed I:

Replaced the FEP
Re-leveled the build plate.

Prints failed. They would pull from their supports. The raft and supports would be on the build plate the rest on the FEP. These were files that never left the USB stick and printed fine a few days before. So I:
Did the light test.
Took it apart and made sure all the LED were lit, they were.
Checked the power supply, it was 24Volts.

New FEP, new level, prints failed. Thought the Z screw or motor could be bad:
Put the old stepper and lead screw back in. No change (put other screw back in)

I tried to re-support the model with twice as many supports, no good.

Asked someone else what their settings were. Changed to those (just barely different than my settings) and now somehow the print worked.

For a few days till yesterday. Ordered a 8K.

Checked the machine to make sure the Z rail was square, it was. Don't forget I turned my 4K into a jack stand. I beefed up the bottom base with an extra 1/4" aluminum plate. Put a brace on the head. Put a big wrap around brace from the Z rail to the base.

It is much better now, but once I set it about 2 years ago it was fine, I never changed a thing. So now when I print 10 of the same print over and over and 1 out of 10 fails it can't be my settings. A new screen is $100, who knows what a mother costs. Plus I have a few very tiny burnt out pixels.

I've been messing with the UV Power setting on my Mono X lately, does the mini 4K have a similar feature? Perhaps bumping the UV power up would remedy the issue?

[Chris333]

Is that something that is on the screen menu?

[Erock482]

Yes, well atleast it is on the mono X, its located in the menu that has controls for manually adjusting build plate height or setting up a test exposure. On the mono when you enter the settings menu there's a gear wheel that when you tap that icon it allows you to adjust the UV strength percentage. My mono came at 100% however I've hear that it can vary what the setting was from the factory. I'm currently running some exposure tests as I step down the power to see if I can help eliminate some blooming on finer parts I'm experiencing