Search found 2417 matches

by Polygonhell
Fri Apr 27, 2012 1:25 pm
Forum: General Tips 'N Tricks
Topic: Extruder Motor Skipping
Replies: 1
Views: 1040

Re: Extruder Motor Skipping

Yep the "is it fully seated thing" caught me out when I first built the extruder.
You assume that flush with the gear face is properly seated but it isn't.
It should turn easily with not rubbing if it's assembled properly.
by Polygonhell
Wed Apr 25, 2012 11:42 am
Forum: What are YOU making?
Topic: printer test[Gear, Woman]
Replies: 4
Views: 1306

Re: printer test[Gear, Woman]

I'd turn your small perimeter speed down, a lot of the upper layers are small enough that slowing down gives the material a chance to set. I'd also enable cooling and set the minimum layer time to ~20seconds and set the minimum speed to something in the 5mm/s range. But I think you'll need support f...
by Polygonhell
Tue Apr 24, 2012 2:21 pm
Forum: Heated Bed How-To's
Topic: (Group Buy) for 7"x7.5" Heated Bed
Replies: 162
Views: 32559

Re: (Group Buy) for 7"x7.5" Heated Bed

You wouldn't want to glue anything onto the PCB, whatever you glue onto it will expand at a different rate than the PCB itself and something will either bend or break.
People usually use either tape or clips which gives the surfaces enough scope to move relative to each other.
by Polygonhell
Mon Apr 23, 2012 10:39 pm
Forum: Troubleshooting
Topic: What am I missing...
Replies: 4
Views: 1339

Re: What am I missing...

For thin and small feature parts try slowing the print speed down, in some cases WAAAYYY down.
It's not just about temperature of the Hotend.
The 10x10x40mm tower is a good test print to dial in temperature and speed on objects with small features.
by Polygonhell
Mon Apr 23, 2012 12:13 pm
Forum: General Tips 'N Tricks
Topic: Automated bed leveling
Replies: 1
Views: 1257

Re: Automated bed leveling

I am going to have to try this out, might save me some time when I dissemble and reassemble the bed. m That's total overkill if you know the bed surface is flat you only need to sample 3 points, and I'd probably use a separate mechanical probe, so you weren't limited to conductive beds. Nop head di...
by Polygonhell
Mon Apr 23, 2012 11:57 am
Forum: Heated Bed How-To's
Topic: (Group Buy) for 7"x7.5" Heated Bed
Replies: 162
Views: 32559

Re: (Group Buy) for 7"x7.5" Heated Bed

Surely less space means less trace means lower resistance, means more current and as a result faster heating. Isn't the issue going to be potentially drawing too much current? It is a bit more complicated than that. To obtain adequate heat, the board must be designed to have enough traces to obtain...
by Polygonhell
Sun Apr 22, 2012 9:44 pm
Forum: Heated Bed How-To's
Topic: (Group Buy) for 7"x7.5" Heated Bed
Replies: 162
Views: 32559

Re: (Group Buy) for 7"x7.5" Heated Bed

Surely less space means less trace means lower resistance, means more current and as a result faster heating.
Isn't the issue going to be potentially drawing too much current?
by Polygonhell
Sun Apr 22, 2012 8:40 pm
Forum: Heated Bed How-To's
Topic: (Group Buy) for 7"x7.5" Heated Bed
Replies: 162
Views: 32559

Re: (Group Buy) for 7"x7.5" Heated Bed

I'll take one @$15.
by Polygonhell
Thu Apr 19, 2012 5:14 pm
Forum: Nuts and Bolts
Topic: Resistor Wire
Replies: 3
Views: 3435

Re: Resistor Wire

I'm using ordinary 18 gauge wire, crimped onto the resistor leads, no issues with it again I just keep it away from the actual heated part.
I would recommend having some sort of connector close to the actual hot end, it makes removing it much easier when it jams.
I use a 4 pin molex connector.
by Polygonhell
Thu Apr 19, 2012 11:46 am
Forum: Heated Bed How-To's
Topic: Motorcycle grip heated bed
Replies: 3
Views: 1464

Re: Motorcycle grip heated bed

I've been using this now for a couple of days and overall I'm pretty happy with it. It's mounted to the stock H1 table by 3 spring loaded #6 bolts, which has made leveling easier. I have a piece of 3/16 tempered glass on top of it, no insulation underneath (though I probably should). Running mostly ...
by Polygonhell
Thu Apr 19, 2012 1:45 am
Forum: General Tips 'N Tricks
Topic: What I learned today
Replies: 3
Views: 1439

Re: What I learned today

I put a piece of 7x7.5x3/16 tempered glass on my homemade heated bed, and with PLA I find getting the first layer to stick with the glass at 60C is dramatically easier and once the glass cools below about 30C or so the prints pretty much separate themselves. It's also evident how not straight my AL ...
by Polygonhell
Wed Apr 18, 2012 6:27 pm
Forum: General Tips 'N Tricks
Topic: What I learned today
Replies: 3
Views: 1439

What I learned today

So other people can avoid my braindead stupidity. I've been trying to print a couple of reel holders for the last couple of days, I could print the first couple of layers and then I'd comeback, check on it and the infill and sometimes the edges would be horribly messed up, what looked like either st...
by Polygonhell
Wed Apr 18, 2012 3:56 pm
Forum: Slic3r
Topic: slic3r 0.7.2b is out with support material generation
Replies: 3
Views: 1185

Re: slic3r 0.7.2b is out with support material generation

It certainly seems better, but I just printed a part that was symmetric in X and about 5 inches wide, it created support material for the RHS but not the left.
So I don't think it's bug free yet.
by Polygonhell
Wed Apr 18, 2012 12:10 pm
Forum: Troubleshooting
Topic: Extruder stops extruding at higher speeds - rollers slipping
Replies: 4
Views: 1585

Re: Extruder stops extruding at higher speeds - rollers slip

You might have to increase your temperatures to go faster I was reading a post somewhere I thin probably by nophead on his blog (though I can't find it now) where he finds the minimum temperature for various extrusion speeds on his setup and once you reach the ceiling, the temperature has to increas...
by Polygonhell
Mon Apr 16, 2012 12:48 pm
Forum: Slic3r
Topic: Questions about Slic3r?
Replies: 36
Views: 11085

Re: Questions about Slic3r?

I actually use 200 mm/min on my extruder. It is a Gregs open extruder with a Jhead hot end. .35 mm orifice. I can go faster than that and do on PLA, but ABS is cantankerous enough to get zeroed in on. Oh I can run 200mm/min but the Slic3r retract setting is in mm/s. 200mm/s is 12000mm/minute, or ro...
by Polygonhell
Sun Apr 15, 2012 5:55 pm
Forum: Slic3r
Topic: Questions about Slic3r?
Replies: 36
Views: 11085

Re: Questions about Slic3r?

200 is really fast for an extruder, the units are mm/s, are you sure it's not just stalling the extruder on the extract?
Mine is set to 20.
by Polygonhell
Sat Apr 14, 2012 7:16 pm
Forum: Mods and Upgrades
Topic: My heated bed Mod
Replies: 17
Views: 4179

Re: My heated bed Mod

The general consensus seems to be regular glass is fine and often flatter than high temperature glasses.
Having said that if the heating is uneven, or you rapidly cool it, it will shatter.
by Polygonhell
Sat Apr 14, 2012 4:34 pm
Forum: Heated Bed How-To's
Topic: Motorcycle grip heated bed
Replies: 3
Views: 1464

Motorcycle grip heated bed

Based on a post at UW I thought I'd give it a shot. I'm using a 7x7.5 sheet of 1/8 Aluminum, cut from a 12x12 sheet. I attached the grip heaters to the bottom wired then in parallel, measured the resistance at about 4ohms applied 11V (don't ask), it'll hit about 80C in 20 minutes or so, which is a l...
by Polygonhell
Wed Apr 11, 2012 1:17 pm
Forum: The Build Zone
Topic: H-1 build / Time lapse video
Replies: 9
Views: 2769

Re: H-1 build / Time lapse video

No, I didn't even know there is such a kit. Let's see... It's supposed to increase precision, I like that. I guess that's for phase 2: Mods and improvements. This is one upgrade I recommend you do from the beginning. It is a massive pain in the rear to undo all the carriages and swap out with metal...
by Polygonhell
Wed Apr 11, 2012 1:37 am
Forum: Slic3r
Topic: Has anyone gotten Slic3r to generate support material?
Replies: 4
Views: 1666

Re: Has anyone gotten Slic3r to generate support material?

As I said I've seen it generate support, but only in extreme cases, in my case the part was upside down because repetier host doesn't seem to correctly display rotated STL files. I actually did spend a short amount of time looking at the code after I saw it generate the material, the logic for suppo...
by Polygonhell
Tue Apr 10, 2012 11:29 pm
Forum: Slic3r
Topic: Has anyone gotten Slic3r to generate support material?
Replies: 4
Views: 1666

Re: Has anyone gotten Slic3r to generate support material?

It does generate support material, but only in very extreme cases.
Unfortunately the logic to determine if it should is far too conservative for it to be useful at this point.
by Polygonhell
Tue Apr 10, 2012 9:29 pm
Forum: Show us your machine!
Topic: Two types of 3D printer owners
Replies: 21
Views: 9619

Re: Two types of 3D printer owners

To say I used a bit more silicon on my second hot end would be a significant understatement.
I think what caused my first one to work itself loose was constantly removing the hot end to clear PLA jams.
by Polygonhell
Tue Apr 10, 2012 12:46 pm
Forum: Mods and Upgrades
Topic: Anyone running different hot ends?
Replies: 4
Views: 1855

Re: Anyone running different hot ends?

I'm now on my second hotend, killed the first one when the thermocouple pulled out. The second one is the improved design with te PEEK capturing the PTFE tubing and the different shaped nozzle. I also added a fan to help stop the PLA jams. Touch wood, I have run through most of a 2lb roll of PLA wit...
by Polygonhell
Sun Apr 08, 2012 10:41 pm
Forum: Troubleshooting
Topic: Hot end plugged up
Replies: 7
Views: 3208

Re: Hot end plugged up

Are you printing with PLA or ABS it's common for PLA to block the PTFE tube inside thee hot end as heat soaks into the PEEK eventually the PLA gets soft further up in the hot end, it expands and blocks the tube. A fan blowing on the hot tend can reduce the chances of it happening. You have to take n...
by Polygonhell
Sun Apr 08, 2012 1:25 pm
Forum: Mods and Upgrades
Topic: Essential H-1 Accessories
Replies: 8
Views: 8938

Re: Essential H-1 Accessories

A DTI is nice to have when you're leveling the bed, but certainly not essential.

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