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Congratulations to this weeks winner: Andrew Diehl
I couldnt go past your fantastically clean prints. Magnificent job.
Well done to all the others who managed to get good results of this challenging print, and nice huge gear set richrap.
Oh, to answer nophead's question. It looks reasonably shiny in real life, but that pic has a bright light close by as well as the camera flash, so it is proba
by
Greg Frost
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Competitions
Such fun, I couldnt resist building another:
by
Greg Frost
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Competitions
Wow. That's really nice andrew. I had a few dags due to extruder ooze. What is your secret? Do you have a smaller nozzle? Lower temp? Faster speed? Does KISSLICER do all the perimeters and then all the infill like slic3r? Or does it complete each island on a layer separately.
Also, did you find that the threads were a bit loose? Or were they a good fit?
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Greg Frost
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Competitions
Thats funny. I just sliced it with my fine settings I used for the impossible sphere (slicer 0.8.2) and printed it.
by
Greg Frost
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Competitions
Here's my attempt at printing it. Man this thing is tiny! took: 04:53:36
It is quite well thought out how it goes together with the possible exception of the drive shaft. Nothing is really holding it in. WIth my print settings, the screws were a bit loose too (although they still were functional when tightened). The spacing of all of the elements in the stack will vary with this slackness thou
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Greg Frost
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Competitions
They were all great prints this week. I particularly liked Andrew Diehl's. Truly impressive.
It is interesting that the smaller one that I printed still has banding on it but this time I think it is something to do with the stepper motor precision something like nophead mentions here: http://hydraraptor.blogspot.com.au/2012/04/stepstuck.html
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Greg Frost
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Competitions
This week's challenge if aubenc's Tint Planetary Gear set. http://www.thingiverse.com/thing:23030
Can I suggest that we move the judging to Tuesday so that it gives a full weekend to have a go at it without the deadtime between the announcement of one winner and the posting of the next challenge.
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Greg Frost
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Competitions
This is the high resolution model (not scaled up by 1.5) with my original print in the background.
Same settings (0.1mm layers).
by
Greg Frost
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Competitions
Given the simple geometry, I modelled the parts in openscad and made a super high resolution version.
The openscad is parametric and allows you to specify the radius of the sphere and the gap between the parts when assembled to account for printer tolerances.
The one I exported has 0.3mm gap and 32 mm diameter (the same diameter as for this challenge).
The files are too large to attach here. I
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Greg Frost
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Competitions
richgain: I just downloaded your zip and looked at your version of the model, and it looks like you have reduced the poly count. The original model was much smoother.
An openscad version of the model would be nice. That way you could parametrically control the poly count.
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Greg Frost
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Competitions
I could do that for you, but where are you based? postage might be a killer? Im in Australia. If you like, I could print an lm8uu version and supply the bearings too.
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Greg Frost
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Job Shop: I need stuff made!
You have an interesting ripple on your prints. Do you use T5 belts that cause that ripple? or is that a speed artefact ringing as it turns corners??
Nice use of colour by the way!
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Greg Frost
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Competitions
Sublime Wrote:
-------------------------------------------------------
> richgain Wrote:
> --------------------------------------------------
> -----
> > Great start! That sets the bar pretty high.
> > Whenever I try to print at 0.1 layer height
> > through a 0.3 nozzle at anything less than 50%
> > infill the filled section eventually
> degenerates
> >
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Greg Frost
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Competitions
Doh. I printed the original scaled by 150%. I still got it to go together:
I printed 2 parts on one printer and 2 on the other overnight.
; generated by Slic3r 0.8.2 on 2012-06-17 at 20:57:18
; layer_height = 0.1
; perimeters = 3
; solid_layers = 9
; fill_density = 0.25
; nozzle_diameter = 0.31
; filament_diameter = 2.87
; extrusion_multiplier = 1
; perimeter_speed = 20
; infill_speed = 60
; tr
by
Greg Frost
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Competitions
Here's mine:
; generated by Slic3r 0.8.2 on 2012-06-02 at 14:12:12
; layer_height = 0.3
; perimeters = 3
; solid_layers = 3
; fill_density = 0.1
; nozzle_diameter = 0.4
; filament_diameter = 2.87
; extrusion_multiplier = 1
; perimeter_speed = 30
; infill_speed = 60
; travel_speed = 80
; extrusion_width_ratio = 0
; scale = 1
; single wall width = 0.42mm
Print time 00:51:30
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Greg Frost
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Competitions
You would need to mirror the object in a CAD program first.
e.g. OpenSCAD:
mirror() import("the_file.stl");
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Greg Frost
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RepRap Host
Any local glazier should be able to cut one to size for a reasonable price for you. I use "3mm glass" which I have measured to be about 2.8mm.
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Greg Frost
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Wanted
Look at my bed in the pictures here:
That is in a prusa 1 configuration (rods below the bars) with a single aluminium plate as the bed.
I have wooden thermal insulators between the bearing holders and the bed.
I built 15 machines like this and only a couple of them needed levelling in the Y direction which was achieved by putting a paper shim between the wooden block and the bed.
Levelling acro
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Greg Frost
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General Mendel Topics
I saw one time lapse print that used a signal from the RAMPS to trigger the camera. They took a photo at each layer change which made it look like the extruder wasnt moving. Makes for a short clip (unless you have many hundreds of layers), but it looked really neat.
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Greg Frost
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General
Or just change your fimware from steps/mm to steps/inch and scale all of the models you get off the web by 1/25.4.
Dont try to participate in discussions about accelleration or feed rate limits though, because youll just confuse everyone.
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Greg Frost
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Slic3r
That is one of my pictures on your shop page (the Greg's Hinged Extruder). Why not show a pic of your own prints so someone can see what quality they will get. I think this sort of thing is frowned upon by the community. I know I'm frowning.
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Greg Frost
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For Sale
I havent been in this forum for a while and the 2 posts that had been updated since I was here last were the ais-multiplier thread and the quadcopter thread. I wonder if we could make a super efficient air multiplier quadcopter?
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Greg Frost
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Let's design something! (I've got an idea ...)
Is he saying you need: "C:\Program Files\Slic3r\Slic3r.exe" ?
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Greg Frost
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Slic3r
Full set of Greg Frost Prusa2 parts printed in PLA with my design updates for linear bearings and mechanical endstops.
Parts are designed for use with lever arm cherry switch Mechanical Endstops which I can also supply.
Save yourself the hassle of PLA bushings that bind and wear out and go with easy to install, long lasting linear bearings.
Parts include:
My LM8UU linear bearing x carriage inco
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Greg Frost
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Plastic RepRap Parts for Sale
With LM8uu on the Z, you can get it running pretty smoothly such that the springs arent required. Gravity will do the job for you. It helps if your rods are very parallel, and my rigid x ends can help with that (see ).
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Greg Frost
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General Mendel Topics
The idler on your guidler has not printed correctly presumably because you are using slic3r which is sensitive to some of the anomalies in the STLs produced by OpenSCAD.
The pictured idler will not work.
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Greg Frost
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Plastic RepRap Parts for Sale
Full set of Greg Frost Prusa2 parts printed in PLA with my design updates for linear bearings and mechanical endstops.
Parts are designed for use with lever arm cherry switch Mechanical Endstops which I can also supply.
Save yourself the hassle of PLA bushings that bind and wear out and go with easy to install, long lasting linear bearings.
Parts include:
My LM8UU linear bearing x carriage inco
by
Greg Frost
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Plastic RepRap Parts for Sale
I use M3 hardware (other than for attaching it to the x carriage where I use M4).
I use M3x50 for the bolts providing the idler tension.
I dont think you would get M4 nuts in the nut traps.
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Greg Frost
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General
I have the yellow set and another set made in amber (see the pics on my other posts).
I have printed guidler extruder bodies with the jhead mounting option, but will print one with another option if you like.
(i.e. makergear groovemount), or others?
Just let me know what you are after and I can post as soon as I receive payment.
payment is paypal to greg.frost at baesystems.com
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Greg Frost
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Plastic RepRap Parts for Sale
Full set of Prusa parts printed in PLA with my design updates for linear bearings and mechanical endstops.
Linear Bearings included (3 lm8uu for X, 3 lm8uu for Y, 2 lm8luu (the long ones) for Z).
Parts are designed for use with lever arm cherry switch Mechanical Endstops which I can also supply.
Save yourself the hassle of PLA bushings that bind and wear out and go with these easy to install, lo
by
Greg Frost
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Plastic RepRap Parts for Sale