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I think you're over-extruding, based on that photo. There is a distinct loss of detail between the adjacent strands on the top surface. I find that if the extrusion value is slightly too high, the layer begins well but, eventually, the excess plastic will have nowhere else to go but up, causing a ridge. There is also a transverse streak, suggesting that the nozzle has dragged through the plastic
by
richgain
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General
richrap Wrote:
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> Thanks richgain, that looks promising, are the
> bolts still very loose (I think the design was
> like that) your first layer also looks a little
> too squished. I'm going to make the switch to
> 0.9.3 then.
I had real trouble getting this Faberdashery green to stick to the bed (all the other colours in the R
by
richgain
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Competitions
@richrap - I loved the fabric idea so much I've already had a go at the test piece and it came out surprisingly well. I'm definitely up for the challenge of printing some larger pieces and the idea of doing something creative with them is brilliant.
Gets my vote, anyway.
richgain
by
richgain
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Competitions
richrap Wrote:
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> @Emmanuel & richgain - Are you both happy with
> Slic3r 0.9.3? I have only been using 0.9.1 and not
> yet made the jump to 0.9.3, do you see any
> problems?
@richrap
I'm much happier with 0.9.3 than any of the other recent versions of Slic3r, so much so that I decided to have another go at the 'Tiny planetar
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richgain
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Competitions
Alan
I have got Strawberry Perl running on my Windows 7 PC and I use it to compile Slic3r.
I'm not a programmer and I remember it was horribly complicated but I can't remember how I got it working in the end.
So, I checked my folder creation date and then searched my Downloads folder for files I downloaded on that date.
Apart from the Strawberry installation file, the only other one I downloade
by
richgain
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Slic3r
I have one of these Kickstarter extruders too although I'm not printing with it yet. However, based on my other printing experiences I have a couple of suggestions you could try.
Temperature - you said you started at 185C and went up. Did you try going lower?
My Huxley will happily print some colours of PLA at 170C.
You need just enough heat going into the nozzle to melt the filament as it is
by
richgain
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General
This model on Thingiverse and the copies made by other people will give you some idea of the current level of detail achieved on FDM 3D printers. Even with fine nozzles and 0.1 mm layer heights we would not be able to get the same level of detail as your photos.
Here is the best I have managed so far. This was printed on my Mendel90.
richgain
mynext3dprinter.tumblr.com
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richgain
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General
I thought I'd try printing with PLA on the Mendel90 using the same file as I generated for the previous ABS print.
Unfortunately, I forgot that PLA really needs a cooling fan. The result wasn't usable but as well as being warped from over-heating, I could see that I was still over-extruding plastic.
I repeated the print with the ducted fan switched onto a low setting. I also reduced the feed-r
by
richgain
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Competitions
Two prints on the Mendel90 using ABS to begin with.
First print: - measurements 27.8/19.68 in X, 27.8/19.82 in Y, walls 4.00/4.06, gaps 1.46/1.46/1.46/1.47
; layer_height = 0.25
; perimeters = 1
; solid_layers = 4
; fill_density = 0.5
; perimeter_speed = 30
; infill_speed = 30
; travel_speed = 150
; scale = 1
; nozzle_diameter = 0.45
; filament_diameter = 2.8
; extrusion_multiplier = 0.85
; sin
by
richgain
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Competitions
@jaramaniac - Yes, several do.
When you tell slic3r what layer height and wall thickness you want, it will try its best to achieve those settings by controlling the speed of the nozzle across the build platform (feed-rate) and the rate of extrusion (flow-rate).
However, it bases its calculations on a formula that takes into account the input filament diameter, the nozzle diameter and the extrusio
by
richgain
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Competitions
richrap Wrote:
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> @richgain - No problem, glad it helped. That's
> looking really great!
>
> Do you have the original cast X/Y pulleys on the
> Huxley? or metal ones?
>
> Have you also printed it on the Mendel90 to
> compare?
@richrap - Yes, still using the original resin-cast pulleys on X and Y on the Huxley. What'
by
richgain
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Competitions
@richrap - thanks for the great advice! I decided to reprint keeping everything the same (including the filament colour) and changing just one variable.
I have arbitrarily chosen 0.25, instead of 0.3 mm, as the nozzle diameter in the Printer tab of Slic3r (which is about a 17% reduction).
Overall a good improvement, especially in the gaps.
New readings are:
27.81 x 27.68 external
19.82 x 19.57
by
richgain
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Competitions
@Wired1 - Looks to me like you're over-extruding.
On both my Huxley and my Mendel90, for reasons I don't yet understand, feeding precise values for filament diameter and E steps/mm into my software and firmware respectively, does not give me good prints. I have to set the Multiplier to between 85 - 90% to reduce my flow rates, otherwise the prints end up looking like yours.
Don't always trust th
by
richgain
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Competitions
My first attempt, also in pink PLA (we're obviously quite secure and comfortable with our masculinity).
; generated by Slic3r 0.9.3 on 2012-10-11 at 07:10:46
; layer_height = 0.2
; perimeters = 2
; solid_layers = 4
; fill_density = 0.5
; perimeter_speed = 30
; infill_speed = 50
; travel_speed = 100
; scale = 1
; nozzle_diameter = 0.3
; filament_diameter = 1.75
; extrusion_multiplier = 0.85
; si
by
richgain
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Competitions
I bought my bolt-hobbing HSS tap from this site on eBay. Great if you're just looking for one specific part, rather than a complete set.
The taps in my cheap set just weren't up to it but this one worked perfectly.
by
richgain
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General
@OoiTY - Congratulations on your well deserved win.
As well as the prize generously provided by Rhys, you also get the dubious honour of choosing, arranging and judging the next competition.
When you are ready, can I suggest you start a new thread in the Competitions topic explaining what is to be printed and how it will be judged (along with any other rules you wish to apply) and then also post
by
richgain
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Competitions
I'm in the same position. The build was quite straightforward but I can't see any way of using this extruder on my current Mendel90 X carriage because it is so short it won't be able to reach the bed. I'm quite happy to put it to one side and save it for MyNext3dPrinter but I would also be very interested to see how other people are using theirs.
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richgain
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General
That looks superb!
What printer was it made on?
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richgain
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Competitions
Blender is free and stuffed full of powerful features that I am still discovering. It has a steep learning curve but some useful KB shortcuts that make it fast to work with.
OpenSCAD is also free and is a great option if you're more of the coding persuasion - the Mendel90 printer is fully parametric and fully designed in OpenSCAD which proves how effective it can be, in the right hands.
I tried A
by
richgain
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General
That's what I love about this thread - the opportunity to learn unexpected new things.
I've never heard of the 'solidify modifier'; in fact I couldn't even find it in my version of Blender, but then I am one of those quaint 2.49b devotees who couldn't adjust to the new style interface in 2.50+.
Maybe I'll just have to give it another go. It does sound like a very useful tool.
richgain
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richgain
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Competitions
The best method I have found so far is to load the model in Blender then go into Edit mode and use a combination of "Scripts / PolyReducer" and "Transform / Shrink/Fatten along normals". I think this latter one might work for your torus example.
It isn't fully automatic and it doesn't work everywhere. I had to edit some of the the vertices to accommodate the indentations of the mouth and ear-hol
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richgain
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Competitions
OK, I'll go first.
This was my third attempt at printing Yoda, so I've picked up a few ideas from my previous tries.
I'm fortunate in having some nice green ABS handy and I definitely think he looks best in green. The ABS seemed to cope better with the steep overhangs than my PLA prints from the last competition.
Printed at 0.15 mm layer height with 35% infill and at 40 mm/s.
There are no very s
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richgain
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Competitions
Posting here just in case, like me, you signed up to get notifications on forum updates for this thread.
The new competition is up.
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richgain
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Competitions
Good decision.
Congratulations Rhys. Well deserved. Already looking forward to the next one.
by
richgain
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Competitions
Yes, I switched from PLA to natural ABS to try and get at least one successful print.
Thanks to the great advice on this thread I hope to carry on improving the tuning and see if I can succeed with PLA as well.
by
richgain
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Competitions
Perseverance pays off.
Reduced speed to 20, used Z lift with moves and printed in plain ABS.
Just finished in time!
richgain
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richgain
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Competitions
Yes, it does. There is no difference in appearance in KISSlicer, with and without the M83 command.
In Repetier Host, the paths are only visible if I add the M83 command.
by
richgain
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Experimental
@rhysjones - Wow! love the colour and the quality looks superb.
What version of slic3r? Apparently, lift is broken on the latest version (0.9.2).
How much did you lift the nozzle by?
@richrap - frustrating innit?
richgain
by
richgain
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Competitions
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Pages: 12345