Solved First Layer - Gaps Between Lines

Sorry is this has been answer but if it has either the title was bad or it was much furher back:

I just got my R1+ the other day. Kudos as it is a serious upgrade from the BETA that I had.

One issuse that I have after my first print is the first layer has gaps between extruded lines resulting in a not completely solid first layer. I am sure there is an easy fix but I am not sure what it is.

This is the only layert that does this.

If I don't hear anything I will give supprt a call later but I don't have access to the printer right now.

Thanks,

Matt

 

I am a little confused. I am using matter control that came with the printer. All of the settings are preset. Why would I want to use another slicer and shouldn't the extrusion width already be pre-set? If not what should it be and where do I set it in matter control?

Also, as for the layer being flat this is an R1+ with auto leveling. I am doing and 8 by 8 print right now now and the gap where there is not material is consistent.

Thanks, Matt

 

Mark,

Thank you very much. I think that I understand now. I thought that since it was labeled staff member that you were a ROBO employee and thus able to speak to Matter Control. I can change the sliver for sure.

Is there a spot to change the z-offset in settings?

Just out of curiousity what softwaree do you use if not matter control? When I had the BETA I used repeteir but thought I should switch to matter since it was "endorsed" by robo.

Again, thank you very much. I really appreciate it.

Matt

 

Gaps between lines in the first layer means that your z offset is to high. It's not smashing the layer enough. Change the offset lower until you get the lines to just start touching either other.

 

I started using MC and got the gaps like you mentioned on the first layer. I switched to Cura, now I get nice tight bottom layers that are smooth. Not sure what MC is doing, but as far as I could tell, I had all settings set the same in Cura. I'd try Cura, it's free, and see if you get the same results. Post a picture or two and we might be able to better steer you to a solution. The advice given by the folks above is solid. All good things to check.

 

Thank you all very much for the replies.

So here is where I am at. The z-offset was set to 0 already. Not sure I can set that negative.

I needed to get this print done for a customer so I did what I do with my Robo3d beta. After the print started I adjust the lead screws manually until thw extruder was low enough that the lines came together.

So where I am at now is that I know the solution, the extruder needs to be closer to the bed for the first layer, where is that setting? The default first layer height in MC for. .2 resolution print is .3. I am thinking that this is going to be the culprit but until the print is complete I cannot test.

Do any of you believe that this is not the case or have a better solution to get the extruded closer to the bed for the first layer?

Thanks,

Matt

 

OK. That is slightly counter intuitive however I believe that the z-offset in my case needs to be postive, which will bring the extruder closer to the bed.

Thank you all so much for your help. I am going to test this either tonight or tomorrow and I will let you know the results.

 

an other way to set the offset is this (has been more reliable to me):

G1 Z5 (set your offset here if you want 0.8mm offset enter 5.8)
G92 Z5 (this takes your current Z position and set it as 5)

Just add this after the G28 and G29 (and don't forget to delete the M565)

 

Is your firmware compatible with the Plus? I read your firmware thread and you mention changing some things in the configuration.sh for the Plus but what exactly?

Sent from my SM-N910T using Tapatalk

 

OK I got a copy of the OEM firmware sent to me from RoBo so I'll look at them side by side and see what's up

Sent from my SM-N910T using Tapatalk

 

Here is the Plus firmware if you wanted to look at it as well