Search found 12 matches

by ggeezer
Sun Jul 05, 2015 7:24 pm
Forum: General Discussion
Topic: Gaps between splitted parts
Replies: 16
Views: 14929

Re: Gaps between splitted parts

I print usable machine parts in ABS for my business and have printed hundreds that were made up of joined smaller parts. In fact, you cannot print parts with a footprint of over 4" in any direction without getting warping problems and other printing anomalies; so if you need larger parts, they will ...
by ggeezer
Sun Jan 25, 2015 12:05 am
Forum: General Discussion
Topic: What makes a good 3d printer
Replies: 7
Views: 7275

Re: What makes a good 3d printer

What makes a good printer is good engineering and construction. You can go only so cheap before print quality suffers. As an engineer, I design and manufacture laboratory automation machines and end use a lot of printed ABS and nylon parts. I have used Stratasys Dimension machines, Makerbots and my ...
by ggeezer
Fri Dec 12, 2014 10:59 pm
Forum: General Discussion
Topic: hairy prints
Replies: 8
Views: 9890

Re: hairy prints

I'm speaking as a plastics professional with 50 years of experience in the field and have dealt with almost every problem imaginable. I also have over a year of hands-on experience with FDM printing and have dealt with many problems. The number 1 reason you get "hairy" prints is moisture. ABS is mil...
by ggeezer
Thu Oct 30, 2014 3:14 am
Forum: General Discussion
Topic: Can't print simple part
Replies: 5
Views: 4550

Re: Can't print simple part

All the forum sites that I know of only allow files that can be easily viewed with OS embedded digital image viewers of files like jpegs, gifs etc. To view 3D files like STLs you need special more sophisticated software viewers which the general population just doesn't have, hence these files aren't...
by ggeezer
Sun Oct 26, 2014 5:58 pm
Forum: General Discussion
Topic: Clear ABS
Replies: 9
Views: 7233

Re: Clear ABS

Since the Afinia brand of clear ABS is their standard grade, I print it at around 230 degrees C. I use the old single switch temp. modifier from Octave and I get good prints. I must warn you though that the clear print isn't window glass clear and only has about 50% transparency due to the incoheren...
by ggeezer
Thu Oct 23, 2014 3:08 am
Forum: General Discussion
Topic: Clear ABS
Replies: 9
Views: 7233

Re: Clear ABS

I buy my translucent ABS from afinia.com Part Number 22544
They only have clear transparent. This filiment works well on my Afinia printer but the material seems to be harder and stiffer than their regular ABS
by ggeezer
Thu Jun 26, 2014 9:22 pm
Forum: General Discussion
Topic: Printer Jam
Replies: 21
Views: 16176

Re: Printer Jam

There is another feed problem that often crops up. My low-cost Afinia filament is often "jumble" wound onto the reel. Instead of being level-wound so that it feeds smoothly off the reel, it is often criss-cross wound in an unorganized manner so that the filament gets snared by overlying layers and k...
by ggeezer
Tue Jun 24, 2014 6:05 pm
Forum: General Discussion
Topic: Printer Jam
Replies: 21
Views: 16176

Re: Printer Jam

To make cheap filament, processors will use a lot of, if not all, regrind (recycled) resin.This resin has gone through one or more heat cycles which can degrade the material to the point where some of it will not melt any more. Poor extruder maintenance along with bad system setups often import cont...
by ggeezer
Sun Apr 13, 2014 6:50 pm
Forum: General Discussion
Topic: Best surface for printing flat large parts ?
Replies: 1
Views: 3167

Re: Best surface for printing flat large parts ?

I print a lot of large parts and the warping of the perf board is a problem. I don't use those goofy clips, I bolt the board down. In fact for large parts I use 8 bolts. This doesn't totally eliminate the problem but it does a pretty good job. I suppose a glass plate would be stiff enough but I have...
by ggeezer
Fri Jan 31, 2014 5:46 pm
Forum: General Discussion
Topic: x axis messing up big time.. help!!
Replies: 6
Views: 6751

Re: x axis messing up big time.. help!!

There was one thing I forgot to suggest in my last posting.
Have you tried repositioning the model on the build platform by rotating it 90 degrees along the Z axis?
If you haven't, give this a try and see if the problem persists.
by ggeezer
Thu Jan 30, 2014 4:15 am
Forum: General Discussion
Topic: x axis messing up big time.. help!!
Replies: 6
Views: 6751

Re: x axis messing up big time.. help!!

Your machine mechanics are fine. The problem is either the filament not being uniform in diameter which can cause extudite width changes but most likely it is the information that you fed the printer. There probably are errors in the STL file you loaded. The file conversion process can often be trou...
by ggeezer
Wed Jan 22, 2014 8:48 pm
Forum: General Discussion
Topic: Best affordable filament?
Replies: 16
Views: 17841

Re: Best affordable filament?

Low cost filament...how about free! My friend's company has a Stratasys Dimension printer that uses the same diameter filament as my Afinia (re-branded Up). The filament prints fine on my Afinia although it's extrusion temp range is lower than the Afinia premium filament and more like their economy ...