Anycubic Photon

[C855B]

So there were no black Friday deals on these?

The original Photon? Apparently no super-special deal, or, rather, they're offering $239 without resin - the same price as in August when I bought mine. It's somewhat confusing, with the $239 "sale" coming and going somewhat randomly, although more often recently. I haven't been following the Photon S, so I don't know if the "Black Friday" price of $359 is special or not. I'm curious if they're planning to cut special deals on "Cyber Monday", tho'.

Thanks for the enlightenment on the Prusa SL1, @Mark W , although I don't exactly comprehend why somebody would pay $1399 kit/$1699 assembled for what seems to spec-out as the Photon S in a different package with a couple of added bells and whistles ("tilting tank"?).

However, Prusa's FDM printers are apparently worth the premium, from what I'm reading generally as well as your experience.

[PJPickard]

I'm still trying to decide on what resin printer. There are a few deals out there. Prusa is offering free shipping and a free bottle of resin. 3Dprintersonline currently has the Photon S at $359. I'm encouraged to hear that the Photon is working well.

[Norris04]

Well, it smells but it works good..

[Chris333]

@Chris333
One thing I'm confused by on that awesome caboose is the door on the side.
It looks like a sliding door but it can't slide due to the window.
Does it swing inward?  Should there be a pipe wrung below the door for a step?

Just because  :

[wazzou]

Just because  :

That's clearly a baggage car or RPO.   

[Erock482]

Given the size of the door on that, I think it would slide inward. The window frame for the adjacent window must be flush with the wall to prevent contacting the door in the open position.

The other option would be a roll up door, but me thinks that is highly unlikely!

[Chris333]

Hey it's my story and I'll tell it how I like   

[Erock482]

Speaking of caboose creations....

Progress continues, however an interesting artifact needs some attention.
 Im getting some warping of the first few layers of the car body. as well as an interesting ridge that runs the length of the car. additionally the first few layers of the cupola kinda mushroom out before going back to vertical

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Car is well supported, and wall thickness is substantial through that line. I'm not seeing any errors in the file analyzer, any idea what might be causing that?

Car is printing flat

[rodsup9000]

 

[Chris333]

That is the radical change in surface between layers. Take the end platforms off and try printing that way.

[Erock482]

hooray Iphones and photo auto rotation,

Chris, thanks for that tip, I'll adjust and give it a go

[Chris333]

Forgot you printed the grabs as well 

[Stephane]

I had similar problems with both cars I've tried printing so far (i.e. bowing and mushroom).  I mostly solved the issue by putting in temporary internal supports for the walls.  See my gondola print here: https://www.therailwire.net/forum/index.php?topic=47187.0

[Chris333]

I also put an internal brace in a few boxcars I made. Later cut them out. But it was just to keep a slight bow from happening.

There is a lot of surface area while printing the end platforms and then the very next layer would be just a thin end wall. And that big change in once single layer causes that big warp you see at the side, notice it is at the same level as the platforms.

There is another sight wobble in the layer that starts the bottom of the windows, but not as bad and you could sand that out.

[Erock482]

Do you think increasing the end wall thickness and decreasing the platform floor thickness might help? I think I'll go draft up some of that lattice bracing in the linked gondola post and see how that goes as well