Conversion Bosch cordless grass trimmer ART 26-18 Li - thread bobbin


Conversion Bosch cordless grass trimmer ART 26-18 Li - thread bobbin: cordless

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Today there is once again a simple small project from my workshop that has been burning for a long time under my fingers. But before we get to the thread reel, we rewind a little bit.

I'm not a big fan of gardening, so our garden is 95% grass. The plot has 750 m² and with two houses, workshop and terrace of which about 300 - 400 m² of which will remain for the lawn. Not much, but with climbing frame and other obstacles you can mow ever 2 - 3 hours. Depending on the weather, this is to endure, even if I am a little burden of hay fever and therefore also the dust and whirled grass clippings a little added. On the other hand, I find it more annoying to edit the entire edges with the grass trimmer.

Conversion Bosch cordless grass trimmer ART 26-18 Li - thread bobbin: trimmer

ART 26-18Li

Grass trimmers come in different shapes and prices. Most probably have an electric trimmer, because they are very cheap. Here I am also of the opinion that does not necessarily have to be reached deep into the bag. Is only a motor that drives a bobbin. No complicated technology and nothing that works with exact dimensions. My cheap trimmer has always done what he should. However, I always found the required power connection disturbing. Logically, the grass trimmer is needed at the edges and not in the middle of the garden. So you always had to run the entire edge of the garden with the trimmer and pull the cable afterwards. Thanks to a few obstacles then there for a long time, back again, with the cable around the obstacle, again in the last place, run back and put the cable drum, start again at the last place.... You can say that I hated it. And since you do not often do something that does not make me happy, there was always a lot of clippings that had to be collected.

As a mobile alternative to the electric trimmer, there are models with gasoline engine or battery. A brushcutter with petrol engine fell out with me because of the small plot, that would be simply exaggerated and the device too big and heavy. So a battery trimmer. There was only the Bosch ART 26-18 Li for me. Why? Because I already had eight suitable batteries through my many other cordless tools. About the meaning of Akkufamilien I had already written: Power4All or how much battery needs the handyman

Conversion Bosch cordless grass trimmer ART 26-18 Li - thread bobbin: grass

ART 26-18Li with knife

The fact that the ART 26-18 Li does not have a bobbin but plastic knives does not really interest me. You will have already thought something about it and after the first cutting tests I could see no disadvantages, but also no advantages. However, it becomes problematic when you hit on stone edges (house wall, fountain ring, lawn edges...). Like the thread of a spool, the knife wears off, that's clear, you have to count on that and the knives are easy to change. What bothers me, however, is the fact that the knives can not be used to the usual wear. If there is something missing at the top due to the grinding, you could actually work with it, the cutting diameter is only smaller. Due to the lack of mass on the knife, however, an imbalance in the grass trimmer and he begins to vibrate. Is certainly not good for bearings and the engine. So in principle, the knives work great and cut well, but are rather impractical with main edge loading.

I want a bobbin for my lawn trimmer

Conversion Bosch cordless grass trimmer ART 26-18 Li - thread bobbin: grass

Knife and bobbin with uniform recording

The ART 26-18 Li is supplied only with plastic knives and to my knowledge, Bosch offers no alternative to it. However, there are older models - Bosch ART 23 and 25 - which have the same mount and use a bobbin. However, neither the trimmer nor the thread dispenser will continue to be offered by Bosch. With the original article number F016102658 but you can find something, but must be adjusted to higher costs. On Amazon you pay already over 20 € plus shipping: thread dispensers on Amazon

If you are looking for intensive, you will also find cheaper offers and I now have my thread dispenser.

The conversion of the ART 26-18 Li on a bobbin

Conversion Bosch cordless grass trimmer ART 26-18 Li - thread bobbin: cordless

ART 26-18Li without knife plate

You really can not talk about conversion, because you just change the unit. What is missing, however, is the blade plate, which shortens the thread that is too long during operation. But we are creative and by chance I even had the right little angle. If you plan a similar implementation, the angles have a side length of 25 mm are 15 mm wide and 2 mm thick. But they are likely to be 2 mm narrow, so only 13 mm wide. Then they fit exactly in the holder and this does not need to be specially processed. I have cut the slightly higher margin on one side with a knife.

Coincidentally, even a hole of the angle with a mounting hole on the trimmer agreed with me, the second falls unfortunately on a cavity. This can be quickly filled with the hot glue gun. This may be slightly higher, the angle must then be pressed only immediately in the still soft glue.

However, before the angle is fixed, this still needs a bevel, so he also cuts off the thread. On the trestle this is done quickly and the angle can be put on. After the hot glue has dried, it can then be additionally screwed. Screws something strange in the cooled adhesive, but works.

Conversion Bosch cordless grass trimmer ART 26-18 Li - thread bobbin: Bosch

Grind angle

Conversion Bosch cordless grass trimmer ART 26-18 Li - thread bobbin: conversion

Fill cavities

Conversion Bosch cordless grass trimmer ART 26-18 Li - thread bobbin: cordless

Screw on angle

This completes the conversion and I have to say - awesome! The ART 26-18 Li cuts great and can be re-stocked cheap at wear. Despite my conversion and the resulting benefits for me, the original knives are no mistake. They work really well and cut great. Only, who wants to cut somewhere to edges and does not use the spacer, finds in a bobbin more advantages.

Conversion Bosch cordless grass trimmer ART 26-18 Li - thread bobbin: grass

ART 26-18Li rebuilt on thread spool


Video Board: How to replace Bosch Art 24 strimmer spool