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Jetguy wrote:DSC04014.JPG

Jetguy wrote:FWIW, Martin from Bondtech sent me a proposed design that is bolt on in place of the standard SeeMeCNC EZ-struder. The only different is the filament path is on the upper side, but that decision is so that the lever and spring is facing upward for easier access.

Here is a draft picture.
image002.jpg

Here is the actual printed version installed.

Looks good. I suppose you can't trim the base so you could angle the extruder to line up to the feed tube better? Prolly make the base look hacked up.

Jetguy wrote:FWIW, Martin from Bondtech sent me a proposed design that is bolt on in place of the standard SeeMeCNC EZ-struder. The only different is the filament path is on the upper side, but that decision is so that the lever and spring is facing upward for easier access.

Here is a draft picture.
image002.jpg

Here is the actual printed version installed.

FWIW, Martin from Bondtech sent me a proposed design that is bolt on in place of the standard SeeMeCNC EZ-struder. The only different is the filament path is on the upper side, but that decision is so that the lever and spring is facing upward for easier access.

Here is a draft picture.

Bondtech mini. Guide tube is not connected as I was loading a white filament for Palette calibration from an alternate spool.

Note, this housing was for a different printer and I literally snipped off a lot of the printed bracket. Just emailed Bondtech and maybe they can make a far better design.

Also note, I like the lever and spring up, but that makes the stock spool to feeder guide tube out of alignment. Clipping the upper molded bracket of the feed tube away allows for perfectly acceptable usage as stock.

Jetguy wrote:I'm still playing at this point and yes, the stock nozzle is 0.5mm so my S3D profile is not technically correct, although that was giving me nice looking prints, not "dimensionally accurate". My test cube was slightly oversize in XY (20.12mm).

FWIW, I ran into every problem I've seen in the group listed.
I upgraded the feeder because I had a Bondtech mini and it looked like a good fit. And it is.
You simply need to do a few things.
#1 reverse the extruder motor plug since this feeder is opposite.
#2 Drill 2 mounting holes. (This could be corrected by designing a proper Bondtech housing just for this printer)
#3 adjust E-steps in EEPROM for the new extruder.

However in doing all this, the Bowden tube kept pushing out of the pushfit now that the extruder feeder was "upgraded"
So I just had some more PTFE tubing fresh and replaced it.
I "thought" I seated it all the way in the hotend. As you know in this group, this is a huge mistake and makes a real mess of it.
The morning was spent cleaning and rebuilding the mess. Then I figured why not try a real coated Micro Swiss (previously AVN Swiss) MK8 style nozzle?
The threaded shank matched, the tip is longer but with autocalibration- no big deal.

Just keep in mind, I have a huge parts bin and relationships with these upgrade folks, so some of this is to see what works.
I'm not saying these are must do mods or there is anything wrong with Eris.
Sure, if I was too close to the bed I could make the stock EZ-struder grind filament.
Sure, you could totally stick with the stock nozzle and it's shorter- so maybe the fan ducts work better stock.

Also, this is all just so I can show the Mosaic Palette 4 color device attached to Eris.

I was having alot of issues running at .5 nozzle settings (my shells were seriously not even touching at all) but .4 was too small.
Curious to see the mods you do with the head.. the MK8 series is my fav style thus far.

For the bowden issues, I found it best to unscrew the heatsink from the top and push the tube thru and hold the clip in a unlocked position and screw it back on. Obviously if you dont keep the clip unlocked it will over compress the tube.

Your putting a Mosaic Pallette on a Eris!? I GOT TO SEE THIS!!

Also whats your serial number? Gives an idea where in the production batch you were, they have made some changes already since my build that I have heard.

I'm still playing at this point and yes, the stock nozzle is 0.5mm so my S3D profile is not technically correct, although that was giving me nice looking prints, not "dimensionally accurate". My test cube was slightly oversize in XY (20.12mm).

FWIW, I ran into every problem I've seen in the group listed.
I upgraded the feeder because I had a Bondtech mini and it looked like a good fit. And it is.
You simply need to do a few things.
#1 reverse the extruder motor plug since this feeder is opposite.
#2 Drill 2 mounting holes. (This could be corrected by designing a proper Bondtech housing just for this printer)
#3 adjust E-steps in EEPROM for the new extruder.

However in doing all this, the Bowden tube kept pushing out of the pushfit now that the extruder feeder was "upgraded"
So I just had some more PTFE tubing fresh and replaced it.
I "thought" I seated it all the way in the hotend. As you know in this group, this is a huge mistake and makes a real mess of it.
The morning was spent cleaning and rebuilding the mess. Then I figured why not try a real coated Micro Swiss (previously AVN Swiss) MK8 style nozzle?
The threaded shank matched, the tip is longer but with autocalibration- no big deal.

Just keep in mind, I have a huge parts bin and relationships with these upgrade folks, so some of this is to see what works.
I'm not saying these are must do mods or there is anything wrong with Eris.
Sure, if I was too close to the bed I could make the stock EZ-struder grind filament.
Sure, you could totally stick with the stock nozzle and it's shorter- so maybe the fan ducts work better stock.

Also, this is all just so I can show the Mosaic Palette 4 color device attached to Eris.

Jetguy wrote:I saw it posted earlier but some files I'm using. Note, I was confused on nozzle size and thus left mine as a 0.4 nozzle. I also wanted some purge code so this leaves a little nozzle cleaning dot at maximum Y axis on the bed. Assures a perfect prime every time.

The bed leveling one is just this adjusted for a safe size.
http://www.thingiverse.com/thing:50505

Eris.zip has my S3D profile.

Other notes:
Already used a Bondtech mini feeder upgrade and love it. Just go into EEPROM for the extruder and adjust steps/mm to 153.4 per experimentation (they say 140 but I found that was under). This is different than the 5:1 QR unit, don't get the 2 models confused.

Will be checking out your profile settings this evening for sure for S3D. Curious to see how yours differs from the one I am currently working on.
I like that you did the Prime dot, it seriously needs that. I think it would be nice to have a circular sweep (maybe a 1" long) on the outer limit as well similar to what S3D does with Ultimaker2 gcode. It primes in one spot. Runs across the bed then drops to the glass and does a nice hard 90 degree turn cleaning everything off the nozzle then runs to the start point. But I am not strong enough in gcode to write that manually.

Bondtech feeder upgrade on a Eris? Thats like 1/2 the price of the Eris man! (j/k!) very cool that someone is already modding these.. Let me know if you do any part cooling modifications. I have notice the Eris *IS* capable of simi highspeeds (45-55mm/s) but the lack of cooling power limits you back down to slower speeds than that due to stringing on most prints.

I was trying to figure out the nozzle size as well with just simple extrusion tests and I was getting odd numbers.. I found I been getting good results with S3D set to .43? (I think, I keep changing it) and 1 multiplier above that I was getting gaps in my shells. I will be posting a updated profile for S3D in the next day or so after I compare my notes to your settings.

Did you address any bed leveling issues? Mine levels with the front grounded out and the back almost floating, I have run the calibration script 20 or so times now with temps from 23C-40C and yet to get a solid level. I have actually about worn out my "BuildTak" mat already due to the bad leveling. I been playing with +z in S3D but this does not help with the axis of the level plane is crooked..

I saw it posted earlier but some files I'm using. Note, I was confused on nozzle size and thus left mine as a 0.4 nozzle. I also wanted some purge code so this leaves a little nozzle cleaning dot at maximum Y axis on the bed. Assures a perfect prime every time.

The bed leveling one is just this adjusted for a safe size.
http://www.thingiverse.com/thing:50505

Eris.zip has my S3D profile.

Other notes:
Already used a Bondtech mini feeder upgrade and love it. Just go into EEPROM for the extruder and adjust steps/mm to 153.4 per experimentation (they say 140 but I found that was under). This is different than the 5:1 QR unit, don't get the 2 models confused.