What is the status of 3-d printed grommets

bjk

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#1
Anybody know? And why don't racquet companies make it easier to buy grommets? Occasionally there will be some grommets available on **** but it's hit an miss and I don't know if they're from the manufacturer or not.
 
#2
The grommet is a perplexing detail nowadays:

Typically, heavy “court rash” wear on a bumper guard notwithstanding, they should last 10+ years...

Most racquet companies won’t keep a model going without major redesign for more than a couple years...

Most racquet companies would rather have an end-user purchase a new racquet every year, especially when they go to the trouble of redesigning (or, at least, “refreshing”) them...

Tennis is a really “dead” market; has been for a while...

Doesn’t make a lot of sense to make and distribute a bunch of grommets, when you are selling new racquets, does it?
 
#3
If you like your racquet or have multiple racquets of the same make and model, you can always stock on replacement grommets when they are available. They are typically between $4 and $12 or so for a set for a racquet. They become a problem only when a racquet has been out of production for a few years and grommets are out of stock and no longer made. At that point, it may be easier to find a new racquet which you like.

The way how you phrased your post suggests that you are perhaps not aware that most major retailers of racquets and tennis gear, including Tennis Warehouse, carry replacement grommets for a wide variety of racquets. You only need to find that section on their web site. For example, search for "grommets" on Tennis Warehouse gives 377 hits.

https://www.tennis-warehouse.com/se...&opt_page=1&opt_sort=alphaAtoZ&opt_perpage=20

My experience with 3D printing is that most commonly used materials (like PLA or ABS) are quite rigid, whereas grommets must be relatively flexible. I am not sure if rubbery filaments are available, although they might be. Designing a grommet, with all exact dimensions, could be a task which is totally not worth it, certainly the time spent in the process of design is worth more than $10 grommet set purchased around the time when you got your racquet.
 
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#4
3D printing is not suitable for grommets due to the way they are layered. Essentially the layers would split apart too easily for something as thin and under as much stress as a grommet. Although you could certainly do it. I just don’t think it would hold up. For now injection molding is necessary for a grommet to work.

Finding grommets for classic racquets is always an issue. What you could do though is 3D print a bumper or head guard and then pair it up with surgical tubing or the Fittex individual grommets on TW. It would be a nice little project if you like to tinker. As a business I don’t see how you could make that profitable in anyway.
 
#7
Think they would fit on a frame up to 20 or 22 mm wide at the tip. Length wise, probably up to a 95, There is nothing to just using 2 of them if you want more length. The most labor intensive part is matching and drilling the holes. I don't think they have to be exact since you should be using FITTEX replacement tubes with them. The site also sells their version of FITTEX tubes, probably before FITTEX was around.

edit: The product is called Guardit at r-a-b.com
 
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#8
Think they would fit on a frame up to 20 or 22 mm wide at the tip. Length wise, probably up to a 95, There is nothing to just using 2 of them if you want more length. The most labor intensive part is matching and drilling the holes. I don't think they have to be exact since you should be using FITTEX replacement tubes with them. The site also sells their version of FITTEX tubes, probably before FITTEX was around.

edit: The product is called Guardit at r-a-b.com
Fittex has been around for decades. At least 30 years
 
#9
I admit I could be wrong. FITTEX has only been available at TW for the last decade, but has been there or a version of it at r-a-b for a longer time. At least that seems to be what my 'bad' memory recollects. Who knows? I going to grab a beer. :)
 
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