Ah - yeah, I used a manual one,

Yea.. which one?

I just grabbed a $25 one off Amazon.

well I already killed the burr grinder I got off of amazon.. I probably ran it too much in too short of an amount of time. It was the Cuisinart DBM-8 Supreme Grind Automatic Burr Mill. It did do a decent job of grinding the filament but I guess you can only run it for short bursts.

If you're using a melt filter nozzle, you'll want to either remove the filter, or be very careful about how deep you drill.

Yeah I was planning on removing it from the extruder first so it'd be easier to drill. But drilling it out in place is tempting because it's not fun getting the nozzle off after it's been used. lol

http://www.amazon.com/Cobalt-Jobber-Len … +drill+bit

If you're using a melt filter nozzle, you'll want to either remove the filter, or be very careful about how deep you drill.

When I started out, I was worried about oversize filament - MFI and temperature can both impact diameter. However, most users report 1.6-1.75mm, so I will probably bump it up a size in the future.

Are you using MG94?

Sounds like the solution is to drill the nozzle one size larger.

Yes, what size should I be aiming for? Do I need a drill press for this?

Sounds like the solution is to drill the nozzle one size larger.

Every 10C is a ~0.1mm reduction in diameter. 180C should bring you to 1.65 or so. I drill the nozzles aiming for 1.70mm filament - better to be undersized slightly than over.

Well I've been lowering the temp in steps and I'm down to 160 and it's still only 1.60 and it's extruding really slow

Check out this thread before trying powders:

http://www.soliforum.com/topic/2123/col … ch/page/5/

(post 120+)

Higher temp probably would help mix, but it would also show the diameter reduction you see.

The trouble with streaking comes from masterbatch pellet size relative to extruder size. If you can run the pellets through a burr grinder or something, they'll mix better.

Are there any specific models of burr grinders that are known to be up to the task? These are usually used for coffee right?

I'm also going to try using powered pigment and cut out a step?

The trouble with streaking comes from masterbatch pellet size relative to extruder size. If you can run the pellets through a burr grinder or something, they'll mix better.

200 is way too hot, that's why you're seeing that diameter. You need 175-185C, as listed in the manual (step 2, operation instructions). The alternative is to drill the nozzle bigger.

Every 10C is a ~0.1mm reduction in diameter. 180C should bring you to 1.65 or so. I drill the nozzles aiming for 1.70mm filament - better to be undersized slightly than over.

Okay.. I recall being confused about that but I can't get the manual at the moment. (dropbox is blocked where I work)

The first batch of color I tried to make came out really streaky so I changed the ratio and had somehow decided that a higher temp would help mix the pigment.

Every 10C is a ~0.1mm reduction in diameter. 180C should bring you to 1.65 or so. I drill the nozzles aiming for 1.70mm filament - better to be undersized slightly than over.

I suppose it might not be getting cooled fast enough?

I was able to print with the 1.4mm diameter filament and it looks great. But I'd of course rather get closer to the spec of my printer.