Search found 337 matches

by zemlin
Mon Jul 23, 2018 2:38 am
Forum: Others
Topic: Drying filament under vacuum
Replies: 13
Views: 260

Re: Drying filament under vacuum

I dug through the filament archives and found a neglected spool of Taulman 910. It had been stored in a bag with silica gel, but the humidity indicator in the bag showed at least 50% RH. I weighed this spool on my cheapo scale with .1g resolution (but also a bit of hysteresis, so it's not perfect) a...
by zemlin
Mon Jul 23, 2018 12:20 am
Forum: Software
Topic: Spiral Vase - Sphere Printing
Replies: 6
Views: 94

Re: Spiral Vase - Sphere Printing

To fill in the gaps, the machine would need to be printing concentric rings with almost zero change in the Z dimension. FDM printing won't print unsupported material like that. Gravity will win that battle. You can get to about a 45 degree overhang with vase mode - or might be able to get up to 60 d...
by zemlin
Sun Jul 22, 2018 12:08 pm
Forum: Others
Topic: Drying filament under vacuum
Replies: 13
Views: 260

Re: Drying filament under vacuum

That last batch of 4 spools and a bunch of silica gel ended up running for about 48 hours before the desiccant turned blue. I exchanged oil in the pump twice during the run and again when it was finished. I froze the water out of the oil and collected about 4oz of water (~120ml). I poured the oil th...
by zemlin
Sun Jul 22, 2018 1:59 am
Forum: Hardware
Topic: Temperature control in the N2(+) enclosure
Replies: 7
Views: 424

Re: Temperature control in the N2(+) enclosure

Here are STL files for the fan hole fixture, the dremel guide for the 80mm fan hole, and the heat trap.
by zemlin
Sun Jul 22, 2018 1:20 am
Forum: Hardware
Topic: Temperature control in the N2(+) enclosure
Replies: 7
Views: 424

Re: Temperature control in the N2(+) enclosure

Here a fan is in place inside the top cover. IMG_1308.JPG Here is the "heat trap" I'll be mounting on the outside. This will limit convection through the cabinet because the hot air inside the cabinet needs to be forced down by the fan to exit the trap. If the fan isn't running, hot air wi...
by zemlin
Sun Jul 22, 2018 1:14 am
Forum: Hardware
Topic: Temperature control in the N2(+) enclosure
Replies: 7
Views: 424

Re: Temperature control in the N2(+) enclosure

I finally got some time to do some of the work on this. Tonight I installed the exhaust fans in the top cover. These will be controlled by the temperature controller when it calls for cooling. I made two fixtures for cutting the fan holes and opening. The first is just a block with a hole pattern to...
by zemlin
Fri Jul 20, 2018 6:52 pm
Forum: Feature requests, ideas, wishes
Topic: Pro Upgrade Kit
Replies: 17
Views: 477

Re: Pro Upgrade Kit

firesped wrote:I wonder though, is raise3d going to give a better deal then just buying direct from bondtech for those parts?

If their buildtak pricing is any indication ...
by zemlin
Thu Jul 19, 2018 3:58 pm
Forum: Others
Topic: Drying filament under vacuum
Replies: 13
Views: 260

Re: Drying filament under vacuum

This is why I pull a vacuum, shut off the valve and turn off the pump. I can hold my vacuum over night without the pump running. Dessicant is loose along the bottom of the chamber. You can get big jugs of dessicant on Amazon. I dont have these "water" problems. Also, perhaps its dryer her...
by zemlin
Thu Jul 19, 2018 12:19 pm
Forum: Others
Topic: Drying filament under vacuum
Replies: 13
Views: 260

Re: Drying filament under vacuum

Last night I loaded up the vacuum chamber with 4 spools of PC and Nylon filaments, and tossed a big pile of desiccant packets in as well. I started the pump and checked on it this morning after about 8 hours of operation. The oil level in the pump had risen to the very top of the sight glass, so I s...
by zemlin
Wed Jul 18, 2018 8:34 pm
Forum: General
Topic: PETG and what brands
Replies: 8
Views: 146

Re: PETG and what brands

I run the black MG with a .6mm nozzle - I'm printing pretty big parts with it. I slice with S3D and have the bondtech dual on my printer. I ended up with an extrusion multiplier of .87, layer height 0.25, PEI bed at 85C, Nozzle 245C, no fan, 4800 mm/min and 66% underspeed on outer perimeters and sol...
by zemlin
Wed Jul 18, 2018 4:19 pm
Forum: General
Topic: PETG and what brands
Replies: 8
Views: 146

Re: PETG and what brands

For transparent I have only used eSun, and that has performed well as long as I don't print too fast. I have printed a LOT of black PETG and was favoring Hatchbox over eSun, but needed to look for an alternative due to supply issues. Hatchbox would be out of stock for weeks at a time. After testing ...
by zemlin
Mon Jul 16, 2018 9:45 pm
Forum: Hardware
Topic: N-Series Hot End Silicon Socks
Replies: 16
Views: 452

Re: N-Series Hot End Silicon Socks

Vicky@Raise3D wrote:The N series hotends are starting being installed with this new cover from now. And we will open the sale of these covers to be ordered separately very soon.

Almost 6 weeks have passed. Is it going to be "Very Soon" very soon?
by zemlin
Mon Jul 16, 2018 4:30 pm
Forum: Others
Topic: Drying filament under vacuum
Replies: 13
Views: 260

Re: Drying filament under vacuum

I've been working with this a little and it seems it's going to work well, but it's going to take longer to dry the filament than expected. The good news is it seems to get things far drier than cooking them in the oven. My last test was to put my spool of NinjaFlex in the tank along with about a do...
by zemlin
Fri Jul 13, 2018 2:25 am
Forum: User's Gallery
Topic: Bracket/Fix for N2 Rotating Z-Axis Ball Nuts
Replies: 7
Views: 263

Re: Bracket/Fix for N2 Rotating Z-Axis Ball Nuts

I don't believe my design costs any build height, as it doesn't hang any lower than the screws in the ball nut. Also, this needs to be free to move slightly in both X and Y, so a simple pivot isn't the same, although there are certainly other ways to skin this cat.
by zemlin
Thu Jul 12, 2018 8:37 pm
Forum: Software
Topic: Different Layer Height for Infill and Shell
Replies: 6
Views: 191

Re: Different Layer Height for Infill and Shell

EldRick wrote:This has been discussed in other threads. You can also do this using Cura or Slic3r.

Simplify 3D has this as well.
by zemlin
Thu Jul 12, 2018 1:38 pm
Forum: Printing Settings
Topic: Engineering plastic filament
Replies: 3
Views: 149

Re: Engineering plastic filament

Forum member mhayduk has printed with it. I recall that it was a struggle. Don't know where he ended up with the stuff. I have a couple samples, but have never tried printing with it. You might try messaging mhayduk (Matt) to see what his experience was.
by zemlin
Thu Jul 12, 2018 2:15 am
Forum: Hardware
Topic: Heatblock isolation
Replies: 2
Views: 116

Re: Heatblock isolation

by zemlin
Wed Jul 11, 2018 6:49 pm
Forum: User's Gallery
Topic: Bracket/Fix for N2 Rotating Z-Axis Ball Nuts
Replies: 7
Views: 263

Re: Bracket/Fix for N2 Rotating Z-Axis Ball Nuts

If the flats are a press-fit on the ball-nuts, then why bolt them in place at all? Why not just open up the holes for the top of the holding bolts, and press the piece on to the ball-huts from the top? Zero clearance is not much of a press fit. It's a very light press and wouldn't expect it to hang...

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