New to 3D printing

csorrows 2018-06-17 22:39:57 UTC #81

I think 2 of those are by me.

Telman 2018-06-18 00:57:08 UTC #82

Thanks for letting me know. I got a 5 damper pack for $5 and it sounds like they are well worth the money.

Telman 2018-06-18 01:00:00 UTC #83

Yes they are. Thank you Sir.

Telman 2018-06-18 01:02:50 UTC #84

Thank you Ron. I have my fingers and toes crossed that everything goes to plan.

Telman 2018-06-19 00:14:57 UTC #85

I did my first test print today, the cube . Overall, I'm pleased with it.

For some reason, there was a problem with the far left corner. It started off well, then got worse.

Ron 2018-06-21 13:39:48 UTC #86

Since it appears only to be in a single corner, that actually looks like a CAD or slicer issue to me.
I had a similar sort of thing happen when I was becoming accustomed to the relative weirdness of TurboCAD (I am a long, long time user of Inventor at work so TurboCAD can be rather alien to me in the way it does certain things).
If the solid model meshes do not connect properly, or are misinterpreted by the slicer that sort of thing can happen.
It could also be that the slicer is using the same "start" point for each layer and doing a retraction or pause or other such thing at that point.
Or it could be speeding up with increasing layer height.
I don't know, but you might try a solid cube (with maybe 20% infill) instead to see what happens.

I suppose it could be some odd issue with motion or temperature, but that would not be my first guess because everything else looks so good.

PaulS 2018-06-21 14:07:37 UTC #87

yup i agree. not sure what slicer you are doing but look for a setting to vary start point. may be that is the start point so every new layer you get a blob. if the blobs move to different spots then you know it is either retraction or over extrusion from there. good luck

Telman 2018-06-21 22:50:33 UTC #88

Thank you for the advice. I came to realise that last night. I used Repetier Host software to print the cube. I also printed some heat bed knobs with Repetier too. But I decided to print the last knob using Cura 3.3.1 and the results were like night and day in quality, even though it only took a few extra minutes to complete. I read that using different print software can give better results, but I had no idea it would be that pronounced.
I'm going to Ikea, to buy Lots mirror tiles to use as a print bed and also blue painters tape for adhesion.

Ron 2018-06-22 12:34:43 UTC #89

That's the ticket.....

PaulS 2018-06-22 15:05:36 UTC #90

might want to get a sheet of pei to stick to 1 of those tiles. save a lot of time a grief. no blue tape or slurry needed.

PaulS 2018-06-22 15:12:49 UTC #91

side note that diagonal spread towards the top of the cube may be an indication of belt deflection and not just a slicer issue. watch your belts during direction change and see if they appear to twist. any idler mounted with only has a screw sticking up or drive misalignment may cause flex under load and that is what it can look like.bigger cube should be even worse if so.. just my 2 cents :).

Telman 2018-06-22 16:02:56 UTC #92

Thanks PaulS. I’ll check for any belt twist and misalignment on my next print. I think a pei sheet came with my printer, so I’ll use that on the mirror. I guess my next step is understanding the Cura settings. I checked the advanced settings and didn’t know what most of it meant.

PaulS 2018-06-22 16:26:51 UTC #93

best advice i can give there is make as few or ideally only 1 change at a time while testing and calibrating. You will be sorely tempted but take my word for it LOL

Telman 2018-06-23 02:24:13 UTC #94

Cheers PaulS, I’ll keep that in mind. I have some prints to do tonight, so I’ll do some slight setting changes then.