Search found 537 matches

by zemlin
Mon Sep 28, 2020 4:58 pm
Forum: Printing Settings
Topic: Sizing to design
Replies: 2
Views: 72

Re: Sizing to design

I do not try to make adjustments in the 3D model. I have a process I go through for establishing part scaling and horizontal offset values in the slicer. Some discussion on it can be found here: https://forum.raise3d.com/viewtopic.php?f=8&t=5111 I have had very good success with this for a numbe...
by zemlin
Wed Sep 23, 2020 5:09 pm
Forum: Hardware
Topic: Autocalibrator
Replies: 6
Views: 3686

Re: Autocalibrator

I replaced the control board on my N2 & N2+ printers and added a BL-Touch probe which doubles for meshing the bed and as a Z-stop (Duet2 Wifi). I just enter a Z-offset after a nozzle change and the rest is taken care of. Temperature creep is not an issue because it touches off the bed before eac...
by zemlin
Tue Sep 22, 2020 7:16 pm
Forum: Hardware
Topic: Autocalibrator
Replies: 6
Views: 3686

Re: Autocalibrator

KaneTW wrote:Just copy what Markforged does. Laser distance sensor and a program that guides you through levelling, then compensates for the rest.

and they charge $36,000 for a 330mm (w) x 270mm (d) x 200mm (h) build volume.
by zemlin
Sun Sep 13, 2020 10:09 pm
Forum: E2
Topic: Buying Nozzles
Replies: 12
Views: 299

Re: Buying Nozzles

Blue21 wrote:Do you know the exact model of Olsson Ruby compatible with E2 or PRO2 you used?
Nope, because I print with an N2/N2+. Shame on me for not noticing this was in the E2 subforum.

Solex makes ruby nozzles compatible with the Pro.
by zemlin
Sun Sep 13, 2020 10:03 pm
Forum: User's Gallery
Topic: Lens hoods for super-telephoto camera lenses
Replies: 2
Views: 199

Re: Lens hoods for super-telephoto camera lenses

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A short video showing the hood replacement and function.
https://youtu.be/GdGbJkPPWg8
by zemlin
Sun Sep 13, 2020 10:02 pm
Forum: User's Gallery
Topic: Lens hoods for super-telephoto camera lenses
Replies: 2
Views: 199

Lens hoods for super-telephoto camera lenses

My main side gig is photography. One of my cool toys is a Nikon 400mm f/2.8 lens. Big lenses like this typically use a clamping screw arrangement to secure the lens hood in place, which I don't like. It's not real secure and it's a bit fiddly getting the hood on the lens. I've had my hood fall off t...
by zemlin
Sat Sep 12, 2020 2:53 pm
Forum: General
Topic: Four percent shrinkage with PLA?
Replies: 9
Views: 259

Re: Four percent shrinkage with PLA?

To get a better picture of what's going on you can't consider one dimension, or just inside dimensions. How do the outside dimensions of the model compare to nominal?
by zemlin
Sat Sep 12, 2020 2:29 pm
Forum: E2
Topic: Buying Nozzles
Replies: 12
Views: 299

Re: Buying Nozzles

Been printing a bunch of glass-filled ABS. Compared an A2 hardened nozzle and an Olsson Ruby (both .6mm dia). Ran a bunch of Carbon filled nylon for another job and was doing well with the Ruby on the glass ABS. I tried the A2 nozzle on the glass ABS and got inconsistent prints - seems the nozzle wa...
by zemlin
Sun Aug 30, 2020 7:36 pm
Forum: Printing Settings
Topic: Faceted circumference
Replies: 3
Views: 189

Re: Faceted circumference

The settings will be in your STL export. I don't know F360, but other programs I've used display a preview of the STL. There should be some settings that allow you to create more facets. It's not going to be in the slicer.
by zemlin
Sat Aug 08, 2020 12:29 am
Forum: Hardware
Topic: Has anyone done a 32bit upgrade to the N2 series?
Replies: 25
Views: 6713

Re: Has anyone done a 32bit upgrade to the N2 series?

A warning - I just learned that making a ribbon cable extension to between the Duet board and the Thermocouple daughter board is a bad idea. The communication protocol used on the daughterboards does not do well over any significant distance. I guess I've been lucky on my N2 - Thought the N2+ was go...
by zemlin
Sun Aug 02, 2020 3:39 am
Forum: General
Topic: bubble of build surface (Pro 2 )
Replies: 4
Views: 389

Re: bubble of build surface (Pro 2 )

I find PEI to be a much better, more durable build surface for ABS than BuildTak.
Never tried PEI on glass, so can't speak to how that might work. I've always had it on 1/4" aluminum.
by zemlin
Fri Jul 31, 2020 2:59 am
Forum: Printing Settings
Topic: Raise3D ABS + XY Size compensation
Replies: 24
Views: 6006

Re: Raise3D ABS + XY Size compensation

Even in injection molded plastics, color has a significant impact on part size. With the same material, same color, a different material lot can result in print differences. Different moisture levels, there are all kinds of factors that come into play - some we have control over, some we don't. Your...
by zemlin
Thu Jul 30, 2020 10:48 pm
Forum: Printing Settings
Topic: Raise3D ABS + XY Size compensation
Replies: 24
Views: 6006

Re: Raise3D ABS + XY Size compensation

You might have a few things going on. Being too close on your first layer can create an "elephant foot" on the model - expansion at the build plate. Over-extrusion can also push out the perimeter where solid layers are being printed. Too much heat on the build plate can also warp the sidew...
by zemlin
Mon Jul 27, 2020 12:24 pm
Forum: Software
Topic: Dimensions not true
Replies: 8
Views: 518

Re: Dimensions not true

I'm currently running a glass filled ABS. Changed to material with a different lot number - need to recalibrate. It doesn't take much.
by zemlin
Sun Jul 26, 2020 1:33 pm
Forum: Software
Topic: Dimensions not true
Replies: 8
Views: 518

Re: Dimensions not true

There are so many variables that impact the dimensional accuracy of a part. Anything that impacts how the plastic flows from the nozzle will have an impact on the final part dimensions, whether it's speed, temperature, layer thickness ... even the color of the material has a significant impact. It's...
by zemlin
Sat Jul 25, 2020 9:17 pm
Forum: Software
Topic: Dimensions not true
Replies: 8
Views: 518

Re: Dimensions not true

I use the SCALE number to scale models on the build plate. Double click on a model and you can CHANGE SCALING. Horizontal offset is on the OTHER tab. In IM you can also scale on the build plate. There used to be something comparable to the Horizontal Offset, but it appears that's been replaced by th...
by zemlin
Tue Jul 21, 2020 11:00 pm
Forum: Software
Topic: Dimensions not true
Replies: 8
Views: 518

Re: Dimensions not true

Here's the process I use for achieving dimensional accuracy.
I don't slice with IM, but the principals are the same. I normally can achieve +/- .1mm on dimensions large and small.
https://forum.raise3d.com/viewtopic.php ... oss#p26962
by zemlin
Sat Jul 18, 2020 2:57 pm
Forum: Printing Settings
Topic: Square corner problems
Replies: 2
Views: 248

Re: Square corner problems

The problem stems from elasticity of the melted material and pressure in the nozzle as the printer slows at the corners. Running the prints at a slower print speed and/or reducing acceleration/jerk settings can also improve the corners. Linear Advance/Pressure Advance can address this without reduci...
by zemlin
Wed Jul 15, 2020 7:39 pm
Forum: E2
Topic: Layer Shift
Replies: 5
Views: 292

Re: Layer Shift

You say the first layer was flat. Not sure what you mean by that.
Is the bottom surface of the failed print perfectly flat?
by zemlin
Wed Jul 15, 2020 3:50 pm
Forum: E2
Topic: Layer Shift
Replies: 5
Views: 292

Re: Layer Shift

There are about 17 different things that can cause layer shifts. A few that come to mind are Condition of the gantry rods (lubrication, cleanliness). Speed, acceleration, jerk settings exceeding machine capabilities (either travel speed or print speed). Material collects on nozzle - drops blob on pa...

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