The Coronavirus, Windows 10 Update & Hollow Resin Printing

Mar 12, 2020 at 10:00 am by Warlord720

The Coronavirus, Windows 10 Update & Hollow Resin Printing

One thing you have to say about Windows 10 Update is that is it consistent. Consistently screwed up for some unlucky group of users.

So, imagine this: You are sitting at home because you have been ordered to work from home because of the coronavirus. So far you have no indication you have been exposed. You always wanted to work from home but not under these circumstances and some will have that nagging doubt in the back of their mind as to possible exposure if they haven't been tested.

To combat this, you decide to get busy only to find out that once again, a Windows 10 update has wrought havoc on your computer. The particulars of the problem created really don't matter at this point since the only things you can count on are now death, taxes and a screwed-up Windows 10 update.

Now some of you are going to say hold on… this virus thing is serious and not to be made light of. You would be correct. They are not on the same level but the above-mentioned scenario is only one of several more debacles Windows 10 Update brings us monthly. A quick Google search will show items like Windows 10 Update January 2020 problems, Windows 10 Update February 2020 problems and so on.

I have escaped unscathed to my knowledge on these recent updates but since I have several generations of the same basic configuration I can install the update on the least critical computer first. If all goes well then I proceed up the line till I get to my critical workstation. And, as always, I have online backups going 24/7 just in case.

If possible you might want to adopt this approach yourself if you haven't already. No one wants to be stuck at home with a bad Windows 10 update and the stress of the coronavirus has the potential to make things worse.

As to the virus itself… I am grateful to live in the middle of nowhere at this time but I'm not taking that for granted either as intelligent people are proactive instead of reactive… and I follow their lead.  

Lifestyle changes are never easy even when temporary.

3D Resin Printing – Solid Vs Hollow

Resin PrintsLeft: Very Thin Wall Print (white created by standard cleaning with IPA), Middle: Hollow Print, Right: Solid Print (very heavy)

One thing you quickly discover about resin printing is the cost of the print and how to trim that cost. Another thing you learn is how to hollow out the print model to save on resin. This can be critical if you are prototyping something that may require several prints of the same item as it evolves. Don't let this scare you… the cost is not that high depending on the type of resin you use but it is more expensive than filament per print for my usage.

Now, this leads to an interesting mistake that some resin rookies (myself included) make and that is not creating a couple of holes for the liquid resin to flow out. I'm not sure how much resin is left inside a hollowed-out model, but research suggests there is always some inside no matter how the model and its walls are structured.  Also… especially when printing something with a large area base… two holes are needed so a suction cup effect will be avoided that could stick the model to the build plate. I usually find inconspicuous spots for these holes and make them as tiny as possible.

I haven't had the time to use many of the available slicers to see if they hollow out and place holes, but I have used the Chitubox slicer. It is very easy to use with a hollow and hole menu-driven technique that requires little prior knowledge to operate. For gun and go this app is adequate.

Since I have ZBrush I still use an older method of hollowing out models that come from a 2015 Ask ZBrush tip. This explains how to use Dynamesh and a simple primitive to hollow out your models with more control over wall thickness using the Dynamesh Create Shell tool and its associated thickness slider.

The bottom Boolean cutout will fill over during printing, so I place holes on the side of the base and somewhere on the back of the head. This allows some surplus resin to drain.

To test this, prepare a few versions of the base model with various wall thicknesses and maybe one solid model if the print isn't too large. You will notice the difference immediately by the weight of the prints. The solid print can be amazingly heavy depending on the size.

So… save some money on resin cost and spend it on toilet paper. Welcome to 2020.

M.D. McCallum, aka WarLord, is an international award-winning commercial graphics artist, 3D animator, published author, project director, and webmaster with a freelance career that spans over 20 years.  Now retired, M.D. is currently working part-time on writing and select character development projects. You can learn more about MD on his website


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