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by jfkansas
Thu Oct 05, 2017 8:59 am
Forum: General Discussion and Tips
Topic: extruder recommendation?
Replies: 11
Views: 4345

Re: extruder recommendation?

I would like to add an extruder to my CNC mill. I want one that can take advantage of the speed I have available. My current printer can only go 30mm/sec, in large part because the extruder cannot keep up with thicker layers. I want something that can really MOVE the plastic--perhaps enough to do 2...
by jfkansas
Wed Oct 04, 2017 2:42 pm
Forum: General Discussion and Tips
Topic: Flame retardant filament
Replies: 4
Views: 994

Re: Flame retardant filament

It just depends on the filament. Some regular filaments are "self extinguishing" (not ABS). Then you have some high end stuff like PEI or ULTEM that has to be extruded at like 350c. It is flame retardant, but very few printers are able or safe to print at those temps.
by jfkansas
Wed Oct 04, 2017 2:23 pm
Forum: General Discussion and Tips
Topic: ETA on Next Update to 4.x?
Replies: 1
Views: 507

Re: ETA on Next Update to 4.x?

Probably Dec 25th lol.
by jfkansas
Mon Oct 02, 2017 10:33 am
Forum: General Discussion and Tips
Topic: Quicker solid infill
Replies: 2
Views: 1325

Re: Quicker solid infill

Just don't go overboard with these settings. If you are printing 2 outlines for every one infill you are already doubling your plastic flow. I wouldn't go over 120% infill extrusion width to start if you do this. Try also printing at about 75% infill. It is just as strong, especially on bigger parts...
by jfkansas
Thu Sep 28, 2017 11:50 am
Forum: Troubleshooting and Bug Reports
Topic: Long "coasting" removes loops. No coasting -> blobs/ooze
Replies: 9
Views: 4400

Re: Long "coasting" removes loops. No coasting -> blobs/ooze

That profile is so out of whack I'm not sure where to begin. 10mm of retraction takes time, it doesn't happen instantly. For every 10mm of retraction you also have to wait for 10mm + 1mm of prime. Printing fast increases nozzle pressure, and the faster you print the more pressure. I don't see a lot ...
by jfkansas
Wed Sep 27, 2017 10:41 am
Forum: Troubleshooting and Bug Reports
Topic: Heats left, wants to print right
Replies: 2
Views: 847

Re: Heats left, wants to print right

Probably need a little more code than that. I suspect you are heating T0 and printing with T1. Look at your extruder setup and make sure Tool 0 is selected and T0 is selected for heater. Remember the printer doesn't just do what it wants, it does what it is told to do. Like a record player, it just ...
by jfkansas
Wed Sep 20, 2017 12:30 pm
Forum: General Discussion and Tips
Topic: Burning
Replies: 4
Views: 779

Re: Burning

PETG hates to be over extruded. When it overextrudes even a little some plastic accumulates on the outside of the nozzle and cooks to a brown gunk. This will eventually deposit a stain onto the printed piece. In short, turn down the extrusion multiplier about 10% to start. So if you are at 1.00 chan...
by jfkansas
Wed Sep 13, 2017 4:38 pm
Forum: Troubleshooting and Bug Reports
Topic: S3D puts bridge on top of supports
Replies: 15
Views: 5088

Re: S3D puts bridge on top of supports

It will make sense if the supports where not dense. But the last two layers of supports are 90% infill. The bridge layer just make a total mess of the surface because it follows of course the bridge settings (which are not for printing over a solid layer). No, there should be 1 separation layer bet...
by jfkansas
Fri Sep 08, 2017 1:53 pm
Forum: Troubleshooting and Bug Reports
Topic: Nozzle crossing top layer making scars
Replies: 4
Views: 1375

Re: Nozzle crossing top layer making scars

It won't make scars as bad if you are extruding the proper amount of plastic. Since that top layer is overextruded about 10-15% the nozzle drags through the high spots leaving scars. Or is there a second nozzle that might be too low? Both will do it, but having a hot nozzle go through over extrusion...
by jfkansas
Fri Sep 08, 2017 1:32 pm
Forum: General Discussion and Tips
Topic: Help with some math..
Replies: 3
Views: 652

Re: Help with some math..

Change 5 and 6 to 100% unless there is a specific reason you need to alter the values.

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