Search found 45 matches

by Vice Chief
Tue Jan 16, 2018 2:29 am
Forum: Hardware
Topic: Be aware - Actual buildplate temp lower than temp setting
Replies: 6
Views: 140

Re: Be aware - Actual buildplate temp lower than temp setting

I saw the same thing with a piece of glass painted black, measured with a thermal camera, Casel8 is right, I set my bed to 108C to hit a desired temp of 100C. There is a +/- 5 deg C variation across the bed.
by Vice Chief
Thu Dec 21, 2017 5:13 pm
Forum: User's Gallery
Topic: Project: Scan a motorcycle helmet and print attachments using Einscan Pro+ and SpaceClaim
Replies: 1
Views: 140

Project: Scan a motorcycle helmet and print attachments using Einscan Pro+ and SpaceClaim

Hey all, thought I would share a project. A customer of mine has a novel idea to make attachments for motorcycle helmets. The video doesn't reveal the FULL idea, but it shows how I designed the base part of the geometry. https://www.youtube.com/watch?v=0Ty1GcUyEuk I recently purchased SpaceClaim and...
by Vice Chief
Sun Dec 10, 2017 1:41 am
Forum: User's Gallery
Topic: Life Size Apocalypse Bust
Replies: 18
Views: 673

Re: Life Size Apocalypse Bust

Man, you zbrushers always amaze me. So much detail! It must be gratifying to see your models coming to life.
by Vice Chief
Fri Nov 24, 2017 5:04 pm
Forum: User's Gallery
Topic: Human Hearth in a Crystal Dome
Replies: 2
Views: 254

Re: Human Hearth in a Crystal Dome

Such a nice print. How much surface prep do you do before painting something like this? Do you prime, fill, sand?
by Vice Chief
Tue Nov 14, 2017 3:27 pm
Forum: Others
Topic: RINGING the electromechanical challenge
Replies: 37
Views: 1090

Re: RINGING the electromechanical challenge

I have an accelerometer setup which can collect vibration data. I'd like to pursue this further. I could use help with the analysis side. I'm specifically looking for someone with some programming skill in Python, or some experience in signal analysis with Matlab. Anyone interested in working with m...
by Vice Chief
Mon Nov 13, 2017 4:39 pm
Forum: User's Gallery
Topic: Warp Core/Game Room deco
Replies: 7
Views: 432

Re: Warp Core/Game Room deco

I love seeing the large-scale projects on this forum. Thanks for sharing.
by Vice Chief
Mon Nov 13, 2017 12:16 am
Forum: General
Topic: Forum error pictures linked in incorrect order in post
Replies: 6
Views: 288

Re: Forum error pictures linked in incorrect order in post

PHPBB does this wacky thing where the attachment has an "ID" that changes as you upload additional content. It starts at index 1. Try attaching even the same image several times to a post, and inserting them inline, you can watch it happen. If you go back and edit your post, you'll see tha...
by Vice Chief
Sun Nov 12, 2017 9:20 pm
Forum: Printing Settings
Topic: ABS - partial insufficient strength of printed objects
Replies: 10
Views: 506

Re: ABS - partial insufficient strength of printed objects

Hey tinkerer, I don't think this is normal at all. My machines print ABS very nicely. Looking closely at your picture, I see a number of odd defects that don't look like they were part of the original model. I marked them in red in the attached image. Did you design the model? To me, it looks like t...
by Vice Chief
Sat Nov 11, 2017 7:57 pm
Forum: User's Gallery
Topic: Carbon Fiber ABS Benchy w/ acetone vapor treatment
Replies: 4
Views: 373

Re: Carbon Fiber ABS Benchy w/ acetone vapor treatment

Wow. Which nozzle are you using?
by Vice Chief
Sat Nov 11, 2017 2:35 am
Forum: Hardware
Topic: Carbon Fiber Print surface??
Replies: 13
Views: 459

Re: Carbon Fiber Print surface??

I had them custom made at a friend's optical fab shop. My .01mm flatness spec was pretty easy for them. :). I also quoted them out, if we can get 10 interested buyers, we can get them for $95.00/ea with a 3 week lead time. I also had to fabricate new clips for the back of the bed. If there was inter...
by Vice Chief
Fri Nov 10, 2017 5:42 pm
Forum: Hardware
Topic: Carbon Fiber Print surface??
Replies: 13
Views: 459

Re: Carbon Fiber Print surface??

I'm using 6mm borosilicate glass plates that have been ground flat. They are excellent, but they increase the heat-up time by a few minutes.

Other people like PEI sheets. I have a sheet of it around, but haven't tried it yet.
by Vice Chief
Wed Nov 08, 2017 9:04 pm
Forum: General
Topic: Bond Tech Extruders . Any good, whats the improvement?
Replies: 17
Views: 884

Re: Bond Tech Extruders . Any good, whats the improvement?

Jetguy, can you point me to the info about what happens if it comes unplugged? I glued mine in place with some hot-melt, but I'd like to learn.
by Vice Chief
Sun Nov 05, 2017 9:49 pm
Forum: Others
Topic: RINGING the electromechanical challenge
Replies: 37
Views: 1090

Re: RINGING the electromechanical challenge

The gcode doesn't say anything about acceleration that I can see, so I assume it is stored in firmware.
by Vice Chief
Sun Nov 05, 2017 1:16 am
Forum: Others
Topic: RINGING the electromechanical challenge
Replies: 37
Views: 1090

Re: RINGING the electromechanical challenge

Reduce mass and/or acceleration/deceleration and ringing should decrease proportionally. Right! You can see that in this gif http://forum.raise3d.com/download/file.php?id=5422&mode=view - removing one stepper motor reduces the amplitude and increases the frequency of the ringing. Still a long w...
by Vice Chief
Sun Nov 05, 2017 1:14 am
Forum: Others
Topic: RINGING the electromechanical challenge
Replies: 37
Views: 1090

Re: RINGING the electromechanical challenge

Regarding the "rippled" extrusion of apparently varying width when viewed from overhead, might this not be a consequence of the toothed wheel and stepping motor feed system? Or does that stuff get "averaged out" by the fluid melt inside the nozzle? If this were the case, wouldn'...
by Vice Chief
Sat Nov 04, 2017 9:05 pm
Forum: Others
Topic: RINGING the electromechanical challenge
Replies: 37
Views: 1090

Re: RINGING the electromechanical challenge

Here's some 1000FPS footage of ringing as it happens.
https://www.youtube.com/watch?v=Gqbj1IrtdpM

Here's a plot of ringing extracted by tracking features of the video.
RingingPlotCrop.jpg
by Vice Chief
Sat Nov 04, 2017 5:39 pm
Forum: Others
Topic: RINGING the electromechanical challenge
Replies: 37
Views: 1090

Re: RINGING the electromechanical challenge

I'm starting to think I have a pretty good idea of what's happening here. Here are some images that tell a story. In the images of this print, the motion goes from left-to-right. These were all shot with my photomicrography rig. 1. I printed my test cube, but stopped the print halfway. That way, I c...
by Vice Chief
Sat Nov 04, 2017 4:01 am
Forum: Others
Topic: RINGING the electromechanical challenge
Replies: 37
Views: 1090

Re: RINGING the electromechanical challenge

Yes, that article sounded great but when you read it there is nothing specific, "just we can do this trust us". What I found fascinating was that it was done based on first principles (theory) rather than on measurement. I am a big fan of measuring things! Press releases usually suck. I f...

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