Hi I am having trouble getting the support material to layer in the correct place and give the best surface finish. I would like to attach the .3mf file for a print which needs a 0.2 nozzle to get the logo to print correctly but can’t see how to!!!. However now that the logo comes out ok the bottom face of the logo looks terrible and stringy. If I orientate the print on its side then one of the internal curved parts does not print at all!!!
With regards to the support filament I am using BL W. I am trying to put it in between the top of the support and the print. But, it keeps putting a layer near the base of the print and adding a lot of time and wasting a lot of the support filament!!!
Can any one help with these issues please? It was printing really well with a 0.4 nozzle ( except the logo ) and all came out looking like it had been injected rather than printed!!! Cheers
** posted in other groups**
It seems there is a small radius on that bottom edge right? It’s probably trying to support that.
have you tried changing the threshold angle? You could try lowering the threshold to 1 (or close to) so that it only supports the vertical floating surfaces. And if there are any other surfaces that need support they can be added using the support painting tool.
I’m also wondering about the Z-distance to get the best results. Could it be possible to set it to 0 without it welding to the part? If so that could get you nearly perfect layers. I haven’t tried it so if anyone here has please let us know.
Thanks Luckmaster, I am not getting the build plate support interface issue now but it has apparently moved up a few layers and has also injected a support layer at the top of the print, as shown in the screen grabs. I have no idea why it is sticking in some support interface material in these locations. Any ideas??
This is normal, support interface is meant as an interface between support and your part. that also means if you have supports on top of your part it will generate an interface between it. They don’t seem to allow different materials for top of bottom interfaces so i think your only alternative would be to mess around with support types to try and avoid having supports on top of your part.
Try setting support to build plate only and play around with the support types. Tree supports might work for you but bambu’s implementation seemed pretty broken to me the last time i messed with it. Hope you have better luck than i did.
Another solution could be to design a sacrificial part that bridges over the bottom part and acts as a base for the supports. If the support types don’t work out i’m happy to assist with this.
thanks mate, that is a good idea re the sacrificial part for a base although I am not sure how I would go about it as would that also need supporting over the top of the print??? I think you are right about the slicer being messed up. They really need to have someone developing that alongside the printer to enable us to take full advantage of the printers capabilities!
If the “don’t support bridges” under advanced settings is enabled. it will not generate support underneath the bridge connecting the 2 pillars of the sacrificial part. The surface underneath will probably be kind of messy but that’s ok as it’s meant to be thrown away. Then it can generate support on top of the bridge to support the top of you part.
I do realise now that this won’t solve your interface material usage as it will generate an interface anyways. Not that it’s much, we’re talking less than a few grams here. Would be nice if they allowed us to change the bottom interface settings just like we can do for the top.
Also, if your application allows it, i would cut off part of that sharp point, they are much more difficult to support compared to a rectangular surface. Even if it’s only a few millimeters.
Hi, I will edit the original drawing to remove the sharp edges as you recommended and I see what you are getting at with the bridge. I guess my day will be busy busy busy LoL
BTW I just hopped into this thread late, but you might look to see if Arachne wall generation makes your logo look different. It made a huge difference for me (search for arachne in the forums)
