SoliForum - 3D Printing Community — Help with roughness

Re: Help with roughness

2013-09-22T09:30:37Z

Any updates Nicknow123? get that clog sorted out?

Re: Help with roughness

2013-09-12T01:34:45Z

http://www.thingiverse.com/thing:125321

Everyone should have one of these or something like it.

Re: Help with roughness

2013-09-12T01:13:43Z

I follow most of those tips, and the clog did not happen in between prints but rather right in the middle of one. If I can't find a good replacement for the CAD 5 to poke up the nozzle I'm going to try the acetone.

Re: Help with roughness

2013-09-11T23:55:24Z

Once you get it cleared a couple of tips to stop it happening again.

a) don't leave the extruder at temp, when it gets to the desired temp start printing.
b) if you have to leave it, extrude a few mm every couple of minutes
c) clean off any excess with tweezers or similar at the start of each job
d) make sure you run you jobs at the best temp for your filament, there's a few tests to help determine what works best for each roll.

A soak in acetone might help clear your clog.

Re: Help with roughness

2013-09-11T22:03:23Z

Unfortunately, I am not at ten posts yet, so I can't post pictures. Also I got an awful printer clog yesterday that I am still working out. You guys have really helped me though and I definitely appreciate all the effort. I'll give more information next time I get the printer printing. The whole unclog with CAD 5 wire didn't cut it for me, so I am going to have to find myself a different instrument.

Re: Help with roughness

2013-09-11T05:09:12Z

Hi Nicknow123, Have you made any progress finding out what is causing your layer problems? Like Gomisan, I too would like to see a few pics of some of your prints as it is a lot easier to determine certain issues from a picture

Re: Help with roughness

2013-09-10T23:08:37Z

this sounds like a z-tab/offset issue. there are plenty of guides out there on bed leveling and offset adjustment. i recommend getting a set of automotive feeler gauges (the flat sheet type, not the little wire ones) with metric and standard sizes printed on them. go through the steps to adjust your z-stop so that your bed is level and about .05-.1mm from the extruder. then use the feeler gauges to see exactly how far off it is at all three points. average these numbers, and put that in slicer as the z offset value. this lets the software properly calculate the first layer height and should solve your problem.

Re: Help with roughness

2013-09-10T02:47:16Z

i bet your nozzle is to far from the bed. that was my problem when i started printing.. pay really close attention to your first layer. your extruded plastic should not be to rounded on top. you have to look really close. i like mine kinda flat and pushed into the bed. i also run my bed at 110 and my parts stick real good

Re: Help with roughness

2013-09-09T23:25:30Z

I'd love to see a photo. It sounds like something wrong perhaps with the XZ-Axis stopping the layers from being close enough to bond. But without a picture it's all just guessing.

Re: Help with roughness

2013-09-09T20:33:09Z

Did you go through the recommended calibrations?

Re: Help with roughness

2013-09-09T20:23:21Z

First layer is alright, it sticks fine with a little hairspray and a bit of cleaning. The layers after it, the next ten or so, end up curled or don't stick right to the first. After 10 or so layers, the printer goes back to printing perfectly. When I do say, a sixty layer print, the last 50 layers are smooth, while the first 10 look like they were attacked by a cheese grater.

Re: Help with roughness

2013-09-09T20:01:43Z

nicknow123 wrote:

I set my layer height to about .3 now, and while there is certainly a lot of improvement, I still have issues with the first layers not wanting to stick together. I currently have my bed set to 95 C (with hairspray), and my extruder set to 200 C. I had to switch computers, so my software is very up to date, at most three days old.

Is your 1st layer sticking to the bed and is your problem with the subsequent layers? Get your post count to 10 and get a photo attached...

Re: Help with roughness

2013-09-09T19:47:15Z

I set my layer height to about .3 now, and while there is certainly a lot of improvement, I still have issues with the first layers not wanting to stick together. I currently have my bed set to 95 C (with hairspray), and my extruder set to 200 C. I had to switch computers, so my software is very up to date, at most three days old.

Re: Help with roughness

2013-09-09T02:59:16Z

ronsii wrote:

nicknow123 wrote:
My layer height, according to slicer, is 0.700mm, could that be the cause of my problems? Also the acetone wash is a great idea, I'll try that next time I get a chance to go to the hardware store. Also I've found that 90% of my issues occur in the first 1-15 layers, after that the printer is very smooth with its work.

.7mm layer height.... you sure, it shouldn't be bigger than the nozzle orifice... .35 or .40mm

yeah... if its .7 that could defiantly cause a major resolution problem as its twice as thick as the plastic thread being laid down. .3 is my personal maximum, you could theoretically go up to .4 or so. but why? the quality would be junk and the part would most likely not stay together too well.

are you sure thats not the first layer height? even then its still very excessive. try doing a fresh install of the latest version of RH for solidoodle. it sounds like your settings got borked. sometimes its easier to just refresh the profiles than try to find all that's messed up and fix it, especially if you don't know what all the settings do yet.

Re: Help with roughness

2013-09-09T01:22:49Z

nicknow123 wrote:

My layer height, according to slicer, is 0.700mm, could that be the cause of my problems? Also the acetone wash is a great idea, I'll try that next time I get a chance to go to the hardware store. Also I've found that 90% of my issues occur in the first 1-15 layers, after that the printer is very smooth with its work.

.7mm layer height.... you sure, it shouldn't be bigger than the nozzle orifice... .35 or .40mm