Results 231 to 240 of 476
Thread: Itty Bitty Double Extruder
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01-21-2015, 07:13 PM #231
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01-21-2015, 07:37 PM #232
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01-21-2015, 07:45 PM #233
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01-21-2015, 08:12 PM #234
Correct it uses filament pressure with a spring return down tube. There unit looks a little long but it might fit. I plan to make a new cold end with retract for my set-up. If anyone has a broken Hex i could look into modifying the cold end.
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01-23-2015, 06:52 AM #235
- Join Date
- Nov 2014
- Location
- FL
- Posts
- 9
Is there any benefit in having the print fan running during preheat? Thats how my printer was configured during the test prints. Is it meant to reduce oozing?
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01-23-2015, 07:04 AM #236
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01-23-2015, 07:06 AM #237
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01-23-2015, 10:22 AM #238
It's an intriguing idea but I would need to get more real world reviews. It just seems like Z level repeatability would be tough to get consistent.
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01-23-2015, 02:18 PM #239
Yeah...it is a great idea, but it isn't clear to me if it's adding a lot of value.
If you look at the Stratasys UPring SE Plus (which is a fantastic printer if you have five figures burning a hole in your pocket), it uses a cam system to raise and lower its two nozzles. There's a cam bar extending all the way through the head assembly, sticking out both sides. You slide it back and forth to switch nozzles. While printing, the printer runs the head all the way against the side of the frame to push the bar to one side or the other, then moves the nozzle over a catch bin, extrudes some plastic into the bin and then wipes the nozzle on a metal brush. It does this for every nozzle change, so twice per layer.
This auto raise system doesn't really deal with priming or cleaning the nozzles, so I think at best it just keeps the idle nozzle from dragging across the print and smearing whatever it's oozing onto the print. If it's oozing, though, that extra plastic is still going to get wiped somewhere.
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01-24-2015, 08:43 PM #240
- Join Date
- Dec 2014
- Location
- Canada
- Posts
- 498
can you add something about wiring up Nema 14s the colors are different then the standard steppers from makerfarm
New Here, don't print but need a...
06-20-2024, 12:18 PM in General 3D Printing Discussion