Christmas Advent 3D Printing advice #Day 10 ColorFabb Woodfill
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Christmas Advent 3D Printing advice #Day 10 ColorFabb Woodfill
Day 10 is a Manger (A structure to hold animal feed - Wikipedia). It's traditionally going to be made out of a wooden material. I did think about using Bamboo or maybe even Cork for this one, but it's unlikely Mangers would have come in those options. Back in the day in Nazareth you probably had a choice of 'light wood' or chopping down a tree to make your own.
I often use Colorfabb Woodfill, It's light coloured and as I only had a small amount remaining, so it's just about perfect for a small Manger.
Also, there is a story about the tree sections for Days 10 &11 - If you remember I was wondering what material to do them in - lacking in greens at the moment...
One of the reasons I persisted was the fact it was a really nice shade of green. But in the end I had to go to my fallback option of using a 'special roll' of custom 'LulzBot - Lime Green' nGen that ColorFabb kindly sent me for TAZ6 based projects earlier this year.
Because this ColorFabb nGen saved the day on the tree sections, it made me think of using up the last of my Woodfill material. Otherwise you may have got Laywood in this blog post. I'll try to find another object for Laywood advice soon.
If you find that the tops of your print are darker (especially if they are small features, where the nozzle flow has slowed doen) Set a minimum speed and also set normal print speed to be somewhere similar, so the overall speed is about the same.
I often use 0.2mm layer height (It helps the wood-grain look) and a 0.4mm nozzle or larger - don't use really tiny nozzles under 0.4mm, they will clog.
Use a higher number of top/bottom solid layers (I use 5 @ 0.2mm) to give a good finish.
Print speed - it's good as 20-120mm/sec - Set minimum speed to be 10mm/sec because like many wood filaments it likes to expand and ooze out of the nozzle. You can combat some ooze by lowering temperature, but watch out for lower layer bond strength or weak extruders jamming (use a good extruder, geared preferably).
16% infill and two perimeters for this model.
Why use it? - It's the easiest to use wood filament (in my opinion), looks good and can be sanded, drilled, tapped, even stained after printing. It has a very light wood finish, unlike most other types that are often darker or showing less grain finish.
Is it strong? - When printed it has good layer bonding strength, it's slightly weaker to handle than normal PLA and be careful with the filament - especially in 1.75mm it can snap if not handled carefully and spooled nicely into the machine.
Is it easy to use/print - Yes, it's about the easiest to use wood filament.You will mostly have to combat stringing on most machines, do this with extruder retraction, lower nozzle temperatures and high speed travel moves.
You will also need to increase your extruder feed rate by around 15-20% I use 20% extra - (120% in total).
This is one of the very few filaments I do not use Z-hop to print with. It's enabled for almost every other filament I use. (Top-Tip - always use Z-hop / Z-lift at 1 x your print Z height setting)
Do you have to dry it before/after use? - No - Keep it dry and sealed in the bag, it will take on moisture and that will affect print quality, fine angel-hair like stringing, gaps and generally more ooze if it's not dry. I have not dried any woodfill filament before.
Do i need a 'special' nozzle? - No, it's not abrasive, just remember to use a 0.4mm or bigger nozzle. It will work fine with Stainless, Hardened steel, Copper, Ruby or Brass nozzles. Many filled filaments can tend to collect debris and runny material around the nozzle, so clean before and after use.
Does it smell when printing? - No, it has a very light odour, but it's not like most woof filaments that smell like burnt MFD (wood fibre board) It's one of the few wood filaments I can stand to be in the same room as when printing.
Does it come on a eco friendly spool? - No :( it's using the normal Polycarbonate Colorfabb filament spool.
Conclusion for Colorfabb woodfill - Excellent, wood finish, no problems or failures. Just work on tuning so you get limited stringing, that's the key and it'll print really after that.
I always clean the nozzle after using filled filaments (especially wood), inside and out with a section of Nylon at a higher temperature. It will have some resin-like sticky residue after printing, so get it cleaned ASAP.
The story for today is that there is more than one type of wood filled filament available, experiment with them, and see what works best for you. Do try Bamboo and Cork - they are really fun and look fantastic - Corkfill from Colorfabb is one of my all time favourites. (Yes, cork is a sustainable product).
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