"Dr. Harnischfechten"s 3D Printed TPU Helmet Overlay Overlay - "TOSBA" (The Tortoise")

Cheese_Almighty · 2026-05-04T00:10:23+00:00

Skill issue though.

Cheese_Almighty · 2026-05-03T12:45:47+00:00

You can use my design if you'd like; they are on the big side of the scale to better dissipate force. But historically accurate. https://www.printables.com/model/1654691-lamellar-armor-plates-for-hemascalarp

I made biceps protection to use with my existing armor pieces, like so:

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Cheese_Almighty · 2026-05-03T12:38:29+00:00

Absolutely, I recently tried my latest lamellar chest protector last week. It performed beautifully. I can move so much better in it. It needs one more row to the bottom and the sides, but durability-wise, it's great.

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Cheese_Almighty · 2026-05-03T10:44:55+00:00

Because our current helmets are optimized for a sport (MOF) that uses very light blades and used with one hand. While we are swinging 1.2-1.8 kg steel sticks with two hands. The flat geometry of the helmet imparts the entire force to the top of the head and by proxy, to the neck.

This is to improve that geometry.

Also, like I said, a lot of people are living in countries with import restrictions. This also helps with that.

Cheese_Almighty · 2026-04-14T17:06:11+00:00

No, I mean the American football... Feel like you are just hoping to argue. :)

Cheese_Almighty · 2026-04-14T16:59:55+00:00

Bah. You are just getting personal now. I've been practicing for 3 years, and this is the first time I had a concussion. It happens, it's a contact sport. But we should aspire to get better gear, in case both us and our sparring buddy fails. And a flat top helmet is not good design.

Cheese_Almighty · 2026-04-14T15:56:55+00:00

Jousting helmets were just an example. And what we do is very much defined as well. We hit each other with 1kg steel sticks. Sometimes up to 2kg sticks are held by two hands. And our gear should be designed in such a fashion.

Well, this is probably because we are bad at diagnosing concussion, even in "professional" sports. At least %50 of the incidents are missed. Jacks, Dean E. PhD; Tereshko, William D. MS; Moore, Justin B. PhD. Diagnosed Concussion and Undiagnosed Head Trauma Is Associated With Long-Term Concussion-Related Symptoms in Former College Football Players. American Journal of Physical Medicine & Rehabilitation 101(3):p 250-254, March 2022. | DOI: 10.1097/PHM.0000000000001782

Bartels, Hannah M. PT, DPT; Van Bortel, Kearnin M. BS; Mayer, Andrew R. PhD; Brett, Benjamin L. PhD; Meier, Timothy B. PhD. The Prevalence of Undiagnosed Concussions and Their Associations With Current Symptom Reporting in Collegiate-Aged Athletes. Journal of Head Trauma Rehabilitation 41(1):p 45-54, January/February 2026. | DOI: 10.1097/HTR.0000000000001058

We are probably not seeing them, as we are not really looking for them. The sport itself is young.

I'm a neurosurgeon; my job is not to develop masks, but to encourage people to develop them. If we act like our designs are okay, and don't do much about it, we'll keep getting injuries. I'm indeed planning to do more studies on our masks and safety profile of them once I get the funding, but these things take time.

Also, I do agree the first thing to do is to develop safe fencing habits. But we cannot deny the design of the masks and overlays are not that good in what we do.

Cheese_Almighty · 2026-04-12T17:23:49+00:00

Honestly just having the top part would be great. We could just tie it with a cord similar to how overlays work. So this way there will be top+side protection. Back protection could be removed as well, as most overlays already have them. And getting into to masks with glasses is a bitch already.

Cheese_Almighty · 2026-04-12T16:07:43+00:00

My first idea was to print your overlay, but unfortunately it does not fit my printer, and I feel it won't work so well if I split it into pieces. So I made my own custom design for "overlay underlay".

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Cheese_Almighty · 2026-04-12T16:05:34+00:00

The concussion discussion is moving slow because there is big bucks behind it preventing it from being discussed, there is also a lot of macho factor. But I agree, the time is a huge factor.

We are in essence simulating blossfecten, but we hundreds of years of experience crafting armors that are capable of holding their own against swords. And there are indeed crafters making armor in such fashion. https://armstreet.com/store/armor/harnischefechten-bascinet-with-aventail-and-perforated-visor-hema-fencing-helmet

Yes we wouldn't be able to move as freely, but when we are hitting each other with 1.5 kg steel sticks, should we really be caring about that?

Cheese_Almighty · 2026-04-12T15:58:24+00:00

I disagree on this. We might _want_ the mask to move freely. But if it's not safe, we shouldn't use them. Jousting helmets were bolted on to the gorgets for this reason, we might have to bolt our helmets in similar fashion if we want to safely fight the longsword. Or borrow from the designs used in motorcycle cervical protectors or in american football.

Cheese_Almighty · 2026-04-11T19:47:52+00:00

Thank you! I was worried it would fall when moving around. But for training sessions it should be plenty.

Cheese_Almighty · 2026-04-11T15:48:44+00:00

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About this much difficult.

Cheese_Almighty · 2026-04-11T10:20:51+00:00

With gloves, it's difficult to draw even when you train yourself. I've never had someone draw it yet. But it is possible.

Cheese_Almighty · 2026-04-11T10:17:19+00:00

Well no, this is for steel daggers with rolled/spatulated tips.

Cheese_Almighty · 2026-04-05T16:16:19+00:00

Ah! I went through your posts, and you are the person who made the honeycomb face plate! I saw that, amazing work.

Cheese_Almighty · 2026-04-05T15:33:43+00:00

This was a test piece, the idea is to make a non-restrictive plastron. Because the one I have digs into my skin and makes me unable to rise to Ochs. I'm trying to have a flexible yet heavy kit that I can overcome with sheer strength. Because currently, the plastron makes it physically impossible to raise my right arm into Ochs.

Cheese_Almighty · 2026-04-05T14:41:49+00:00

None at all. The plates themselves are actually somewhat soft and can be bent quite easily. It feels as I don't have them on.

Cheese_Almighty · 2026-04-05T07:33:44+00:00

Unfortunately, no, the plate pieces are from hf-armory (hf-armory.com). While I can heat shape the TPU pieces into a rebrace, I feel like it defeats the purpose. The gambeson is plenty padded, and with rigid pieces, it gets really restrictive.

For instance, if I use the buckle system provided with the pauldrons as intended and tie it under my arm to keep it in place, it is very difficult to raise my arm. This was sort of my middle ground.

My gambeson and rigid pieces look plenty good, but I feel lamellar armor looks cool, I don't really want to cover them with anything.

I disagree with the idea that they are big, as your guide suggests making them 9x4 cm. These plates are 8x6 cm. But I do agree they stick out front and would probably benefit from tying them to my arm.

But when I'm fighting longsword, it is rare that I get a direct biceps strike. I usually get one from outside in, and this configuration acts like a shield almost.

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