Fixed or adjustable stroke? How to find the tattoo setup that suits your style

Which tattoo machine is best for fine line work? Do you need a wireless pen for stipple shading? Is a coil always the better choice for bold lines? And what causes a cartridge to spit ink?

There is no honest one-word answer to these questions. A tattoo machine never works in isolation. Stroke, drive system, grip diameter, cartridge, weight, balance, voltage or frequency, and your hand movement form one complete system. Change one factor and the entire feel at the skin can change.

This article is therefore not a ranking. Instead of placing individual machines in a top ten, it explains how to choose a setup that matches your style. A fixed stroke may be exactly right for one artist, while another benefits from an adjustable system.

You can also chat directly with other tattoo artists about this and other topics via the TODA portal. Can also be done directly through the app.

What does stroke mean on a tattoo machine?

Stroke describes the distance travelled by the drive mechanism during one cycle. In simple terms, it influences how the machine feels and how directly it transfers energy to the needle. Stroke is not the same as visible needle protrusion. The distance that the needle extends beyond the cartridge is controlled through the grip or needle-depth adjustment.

• Short stroke, approximately 2.5 to 3.5 mm: Tends to provide a softer feel and is often considered for gentle shading, transitions and controlled work with smaller configurations.
• Medium stroke, approximately 3.5 to 4.2 mm: A versatile range for artists who want to combine lining, shading and smaller fill work with one setup.
• Long stroke, approximately 4.2 mm and above: Tends to produce a more direct and powerful hit. It is often chosen for bold lines, efficient packing or dotwork with clearly defined dots.

These ranges are not fixed rules. Motor characteristics, give, torque, frequency, cartridge membrane and hand speed can make two machines with the same nominal stroke feel completely different. Stroke is an important filter, but it should never be the only buying criterion.

Fixed stroke: consistent, repeatable and specialised

With a fixed-stroke machine, the basic mechanical character remains constant. This can be a major advantage. You learn exactly how the setup responds and do not have to choose an additional setting before each session.

A fixed stroke can be a good fit if you:

• mainly work in one clearly defined style,
• value repeatable feedback,
• prefer specialised machines for different tasks,
• have already found the right relationship between hand speed and machine setting.

One example of this approach is the Bishop The Power WAND. It is available as a 3.5 mm Shader, a 4.2 mm Packer and a 5.0 mm Liner. Instead of reconfiguring one machine for every task, you select a version tuned for its main purpose. At 142 grams without the optional battery pack, the pen is also comparatively light. Its magnetic backplate allows the artist to switch between an RCA adapter and a compatible battery.

The limitation is flexibility. If your style evolves or you frequently switch between very different tasks during one session, you may need either a compromise stroke or an additional machine.

Adjustable stroke: flexible, but not automatically better

An adjustable-stroke machine allows you to adapt its mechanical character to the task and cartridge. This can be useful for all-rounders, guest artists and anyone who wants to cover several styles with one device.

An adjustable system can be a good fit if you:

• regularly switch between fine line, shading, lining and packing,
• want to use different cartridge groups with one machine,
• are still systematically identifying your preferred working feel,
• do not want to carry several machines while travelling,
• document settings and reproduce them deliberately.

The vyve range includes different solutions. The ACUS M2 uses interchangeable stroke cams. The set includes 3.7, 4.1 and 4.5 mm options, with additional options available. It accepts standard cartridges, offers 33 or 40 mm grips and weighs 187 grams with the battery.

The Vlad Blad Ultron 4 Pro provides a continuously adjustable range from 3.2 to 5.5 mm and combines it with an adjustable hit characteristic. At 282 grams, it is considerably heavier. Some artists experience that weight as stable, while others find it tiring over time.

Flexibility only helps when you understand why you are changing a setting. If you alter stroke, voltage and hand speed at the same time, comparing results becomes difficult. Document your test setups and change one factor at a time.

Decision matrix: Which setup suits each application?

The following matrix is not a rigid formula. It translates common requirements into useful starting points that should be adapted to your technique, the body area and your personal way of working.

The most important row is the one that reflects 70 to 80 percent of your actual work. Do not buy for a theoretical special case if your daily work is dominated by another style.

Wireless machines for fine line: Freedom without false promises

Wireless pens are popular for fine line work because there is no cable pulling against the hand and the workstation is quick to organise. That does not mean that every battery-powered machine automatically works softly or precisely.

• Balance: A heavy or high-mounted battery can pull the machine backwards. This changes grip pressure and may make small movements less stable.
• Weight: A light machine feels agile. Additional mass can subjectively calm vibration. What matters is how your hand feels after a longer session.
• Control: Fine work benefits from a stable and controllable lower power range.
• Starting behaviour and hit: A long stroke with a hard hit can produce fine lines, but it requires different hand speed and control than a softer setup.
• Battery life: Maximum run time is not the only consideration. Replaceable batteries and a reliable charging routine are often more useful in the studio.

If you combine fine line with soft shading, a short or medium fixed stroke may provide a consistent setup. If you also produce bold lines or regularly pack colour, an adjustable stroke or a second specialist machine may offer greater flexibility.

Stipple shading: Consider stroke, frequency and movement together

In stipple shading, each dot should be placed with control. Many artists choose a medium or long stroke because it can define individual hits clearly. Others create their preferred texture with a softer setup and adjusted movement.

1. Do you want clearly separated dots or softer, denser transitions?
2. Do you move slowly by hand, or does machine frequency create much of the density?
3. Which round-liner size and needle diameter create the texture you want?

A specialised pen with a fixed long stroke can work very well for consistent dotwork. An adjustable pen makes sense if you move between open dots and softer shading. Test the combination on suitable practice material first and document stroke, frequency or voltage, cartridge and hand speed.

Coil or rotary for bold lines?

Coil machines still have a loyal following for lining. When properly tuned, they provide characteristic feedback, a clear hit and many options for adjusting spring action and running behaviour. For artists who understand the mechanics and want to tune their tool deliberately, a coil can be an excellent specialist instrument.

A modern rotary liner can also produce bold lines reliably. It is generally quieter, requires less maintenance and can be combined more easily with cartridges and wireless power in pen form.

• Coil: Consider it if you want direct feedback, individual tuning and a specialist lining tool.
• Rotary or pen: Consider it if you prioritise a quieter and simpler workflow, cartridge compatibility and possibly wireless operation.

More important than the drive type alone is whether the machine can move your chosen needle group consistently without forcing you to compensate with excessive pressure.

Grip diameter: Ergonomics are not a minor detail

The grip determines how tightly your fingers must close, how precisely you can guide the machine and how its weight is distributed. A slim grip may feel familiar for smaller hands and detailed movement. A thicker grip can relax the fingers and reduce cramping during longer sessions.

• Slim grip: Direct, pen-like control. It may become tiring if you hold it too tightly.
• Medium grip around 30 to 35 mm: A versatile compromise for many hands and styles.
• Thick grip around 38 to 40 mm: May encourage a more relaxed hand and stabilise the setup, but will not suit every hand size.

The ACUS M2 illustrates why this specification belongs in a buying guide. It can be used with a 33 or 40 mm grip, allowing the ergonomics to be adapted to the hand and application.

Do not test a grip for only two minutes. Simulate your usual working position and pay attention to the thumb, index finger, wrist and forearm after 20 to 30 minutes. Pain or numbness is not a sign that you simply need to get used to the setup.

Cartridge compatibility: Fitting into the machine is not enough

Many modern pens accept standard cartridges. This does not mean that every cartridge runs identically in every machine. Membrane tension, housing tolerances, needle stabilisation and drive power all change the working feel.

• Is the machine explicitly designed for standard cartridges?
• Does needle-depth adjustment work across the full usable range with your preferred modules?
• Does the cartridge sit securely without requiring excessive force?
• Can the motor handle the membrane tension reliably at lower settings?
• Does the manufacturer specify restrictions or recommended modules?

According to their product description, Da Vinci V2 Round Liners are compatible with common modular machines and grips and include an integrated membrane. For bolder lines, designs such as the Kwadron Turbo Round Liner may be of interest because their arrangement is designed for increased ink flow. Neither is a universal winner. What matters is how cartridge, machine, ink and technique work together.

Why does a cartridge spit ink?

Ink spitting can have several causes. It is not automatically a defect in the machine or cartridge. The issue often results from a combination of factors:

• too much ink in the cartridge tip,
• an unsuitable angle while loading ink or working,
• frequency or voltage that does not suit the setup,
• excessive needle protrusion,
• differences in ink viscosity or fill level,
• movement or poor fit between cartridge and receiver,
• a damaged, stiff or unsuitable membrane,
• residue or an incorrectly assembled grip.

If a cartridge spits ink, do not change every setting at once. Insert a fresh and undamaged cartridge, then check fit, needle protrusion, ink volume, working angle and machine setting one by one. Next, test another configuration or cartridge brand. If the problem repeatedly occurs only with one specific module, identifying the cause becomes much easier.

Do not use a cartridge if the packaging is damaged, its movement is abnormal or the membrane is compromised. Used modules must never be reused.

Weight and balance: The number alone says very little

Wireless machines are often compared only by total weight. What matters to your hand is where that weight is located. A well-balanced 190 gram pen can feel more comfortable than a lighter model that pulls strongly backwards. A heavier setup can also be desirable for slow and stable movements.

• Is the centre of gravity in the grip, in the middle or clearly behind the hand?
• Do you work mainly from the fingers, wrist or arm?
• How long are your typical sessions?
• Do you need maximum mobility or a solid and stable feel?
• Does a short or long battery alter the balance?

For comparison within the current range, the Bishop Power WAND weighs 142 grams without the optional battery pack, the ACUS M2 weighs 187 grams with its battery and the Vlad Blad Ultron 4 Pro weighs 282 grams. These figures are not a ranking. They show why light and heavy must always be assessed together with grip, centre of gravity and technique.

Fixed or adjustable stroke: Five questions before buying

1. Which application represents most of my work? Fine line, dotwork, bold lines, soft shading or packing?
2. Do I often change style during one session? If so, flexibility or two specialist setups may make more sense.
3. How should the machine feel in my hand? Light and agile, solid and stable, slim or substantial?
4. Which cartridges do I actually use? Consider not only needle type, but also brand, membrane tension and housing fit.
5. Do I want to explore settings or reproduce them? An adjustable system encourages testing. A fixed stroke reduces variables.

Three typical buying profiles

Profile 1: Fine line and soft black and grey

You mainly work with small round liners and soft transitions. A light, smooth pen with a short or medium stroke is a useful starting point. Prioritise balance, a controllable lower power range and reliable cartridge movement over maximum impact. A fixed 3.5 mm setup can provide strong consistency here.

Profile 2: Traditional, blackwork and bold lines

You want to move larger liners consistently and create clear lines at an efficient pace. A powerful rotary liner with a longer stroke or a properly tuned coil may suit you. A fixed stroke provides specialisation. An adjustable system should remain stable and provide sufficient torque at longer settings.

Profile 3: All-rounder, guest artist and mixed styles

You need fine line in the morning and color packing in the afternoon, but do not want to transport several machines. An adjustable wireless system with a standard cartridge receiver, replaceable battery and suitable grip options may be the best fit. Allow time to develop reliable presets for your most important applications.

Conclusion: Choose the right functions, not the most functions

The right tattoo machine is not the one with the longest specification sheet. It is the one whose stroke, drive, grip, cartridge system, weight and balance match your most common application and your way of working.

A fixed stroke provides a consistent and learnable setup, especially for specialised artists. An adjustable stroke offers flexibility and can cover several types of work, but settings must be tested and documented deliberately. Coil and rotary are not opponents either. Both can be the right choice when their feedback and power transfer suit your style and technique.

Use technical specifications as filters, not as a ranking. Start with your application, then compare stroke and drive. Add grip, cartridge and weight to the decision, and test the complete system rather than the machine alone.

In the tattoo machine range at vyve, you can find fixed and flexible concepts for different working styles. Suitable cartridges then help you adapt the setup for lining, shading or packing.