MakiBox Pellet Colors

2021-08-08 22:55 by Jonathan Buford (comments: 0)

MakiBox Pellet Colors

We received the first colored pellets for the upcoming shipments today, and the colors turned out great.


Everything is saturated and vibrant, so the prints should turn out the same. 




tecdroid responded:
looks very nice. too bad that we only will get two 1/2kg packs. a set of 100g/color would be interesting, too.
or how about 500g of one color and up to 5 colors for the rest of 1kg?
Jonathan Buford responded:
In addition to the case options, we will give some options for additional pellets in an assortment.
justmad responded:
while we're on the topic of plastics it might be nice to have a (definitive) list of plastics that can be printed.

also there was talk of a color injection mod? any infos on that? ^^

exilaus (Twitter) responded:
Nice pellet color, it want mix it !! :D
Jon black , pure white and trasparent color arrive in future?
thanks for all update!!
Jonathan Buford responded:
@justmad - Do you mean a list of plastic types? If it is what colors we will offer, that and the materials will grow over time.

@exilaus - This is just the non-standard colors. We will have black, white, and clear as well.

Jonathan Buford responded:
@justmad - We will develop a way to mix colorant in later, at the moment it is just too much complication to consider.
Evan responded:
@Jon, what's the minimum quantity of material required for the Makibox to print? That is, how much do you need to fill from the pellet drive to the print head?

When you get it printing, it'd be interesting to try mixing white pellets with the coloured ones for different shades.

Jonathan Buford responded:
@Evan - I don't know exactly yet, I'm going to try reducing the nozzle volume as much as possible, but it will likely be on the order of 10g of pellets to fill the mechanism. So, probably 30-50g would be enough to print small objects.
justmad responded:
yeah, i mean the plastic types besides ABS.

i know they have to be in the right temperature-area and have to be flexible enough to travel through the teflon tube to the actual printhead.
so a list of plastic types that you think will work would be nice (and as soon the extruder->printhead connection actually exists, you could actually try ;) )

i think many people would be excited to use recycled plasticslike PC, PET or HDPE


i know you have to much on your hands to work on the color mixer, i just wanted to know whether you are even considering it, or maybe actually have some idea about already

Jonathan Buford responded:
@justmad - I want to try pretty much everything and see. I know that PVC or TPU wouldn't work for this, since it will be too soft. PP I think will be OK. PC and PC-ABS should be, but the melt temp is a little high, so may or may not work with the current hot end. Nylons should work, but some of those can have high melt temps.

I'd recommend not pushing over 300C and officially will say it shouldn't be used over 275C (even though it technically will run hotter). Over 300C the Kapton or its adhesives start smoking and breaking down and there are fumes that we don't want anyone to breathe. We've had it run as high as 440ish before failure, but I wouldn't expect that the lifetime would be very long if you ran it close to that constantly.

Color mixing is something on the table for sure. I think we will first do a separate filament machine as soon as this project is wrapped up and get the mixing sorted there first then spin it back into a mod for this model.

ToolRank (Twitter) responded:
I wonder if printing with polystyrene pellets would be possible.
ToolRank (Twitter) responded:
I should clarify that I mean PS beads. The soft kind.
kaelaussie responded:
Would it be possible to divde the hopper into four separate hoppers that have a slide mechanism for each controlled by a single controll to calculate the colour needed. i.e. Using the Black, Blue, Red and Yellow colours to make any colour.
Have the hopper rleased in regards when the extruder needs that colour and a clear back panel to visually keep an eye on each hoppers level. This would mean we would still only need a single extruder.
Jonathan Buford responded:
@ToolRank - Not likely, I would guess it will be too soft, but can try sometime.

@Kaelaussie - Possibly something like that could work. I think precise and consistent mixing will need a different nozzle design than what we will be using.

Evan responded:
It'll be interesting to see how the mixing works with different colours. Because it prints in layers, you won't end up with big blobs of colour - more likely you'll get a layer or two of one colour, then a layer or two of the other, etc (just depending on which pellets get into the extruder at which times).

With suitably small layers (0.1mm or so) it may well appear to be a single consistent colour when viewed from a distance; the variations will only be visible at very short ranges.

Jonathan Buford responded:

Assuming you get approximately a single pellet to come out at a time, each pellet will be about 40mm of output from the nozzle. It could be an interesting effect for sure.

MondeInfini (Twitter) responded:
Will we one day recycle our bottles? (I am French, very bad English)
Jonathan Buford responded:
That is the idea. This same basic mechanism fed with recycled plastic 
is not that different from feeding it new pellets.


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