Kentstrapper — Large-Format Filament 3D Printer

BOLD 755


, a professional 3D printer forlarge-scale
components.

700×500×500 mm. Dragon UHF. Magnetic S.E.M. 60°C hot chamber. Klipper. For jigs, fixtures, and components that cannot be separated. Manufactured in Florence.

700mm
X-axis
500mm
Y and Z
150°C
Plate
60°C
Room
Purchase price from €18,000 + VAT
Or available for rent from €670/month + VAT, all-inclusive
Tax Incentives Industry 4.0 · Transition 5.0
700 mm
Print width
500×500
Y × Z (mm)
150°C
Heated plate
60°C
Hot room

BOLD 755 Customers

Prada*Valentino*Merlo*Reflexallen*MW FEP*Ortholabsport*TECH.PA.*HIPLAAS*Prada*Valentino*Merlo*Reflexallen*MW FEP*Ortholabsport*TECH.PA.*HIPLAAS*

* The trademarks mentioned refer to companies that have legally purchased Kentstrapper products or services (tax documentation available). The respective logos and trademarks belong to their respective owners.

The product

BOLD — when the text cannot be split.

Cartesian architecture for high-volume printing in a single piece. Robust mechanical structure, controlled hot chamber, magnetic S.E.M., Klipper. For templates, tooling, and structural components that must remain intact. Built in Florence.

700×500×500
Printing volume (mm)
S.E.M.
Quick-change head
60°C Chamber
Heated chamber
150°C
Heated plate
Kentstrapper BOLD — Large-format 3D printer (700×500×500 mm)
01

Large Format

700 mm wide.
Monolithic components, no assembly required.

With a build volume of 700×500×500 mm, the BOLD enables the production of jigs, fixtures, and structural components in a single piece. Fewer joints, fewer processing steps, and direct dimensional control even on complex geometries. Large parts are no longer a problem to be broken down into smaller pieces: they are a process to be brought in-house.

Print volume
700×500
×500 mm
Cartesian. Steel gantry structure. High-volume printing in continuous sessions without operator intervention.
Monolithic pieces with no joints
Solid, one-piece structural components. No critical joints, no loss of mechanical strength at the junction between separate parts.
Dimensional inspection of complex geometries
Fixed lead times and direct dimensional verification. No reliance on external suppliers, no delays from subcontractors.
1 or 2 extruders
Standard single-extruder configuration. Optional second extruder for dedicated support material or two-component prints.
Are you considering bringing the production of large parts in-house? Our technical expert will provide an answer before you have to make a decision.
055 447 6656 Mon–Fri, 9 a.m.–6 p.m.
Contact the sales department
02

S.E.M.

Continuous production.
Changing the print head no longer stops the line.

Kentstrapper’s Magnetic Extrusion System addresses the main hidden cost of industrial 3D printing: downtime caused by extruder changes or maintenance. Simply disconnect two connectors and remove the magnetic block. No tools required, no disassembly needed.

Replacing the S.E.M. print head
<30 sec
2 connectors + magnetic clamp. No tools required, no prolonged production downtime.
Standard
PLA, PETG, ASA, ABS — general-purpose, prototyping, and low-cost tooling materials
Technical materials
GF Nylon, CF Nylon, CF PPS — high mechanical and thermal strength
Certificates
ESD and UL 94 V-0 Materials — Applications Where Certification Matters
Built-in filament sensor

The printer has a built-in sensor that not only detects the presence of filament but also monitors its feed. If the filament runs out or the feed is irregular, the machine automatically pauses. No parts are lost due to filament running out or feed issues.

Change the print head in less than 30 seconds, without interrupting production. Do you have questions about how S.E.M. applies to your situation?
055 447 6656 Mon–Fri, 9 a.m.–6 p.m.
Contact the sales department
03

Reliability

Three protective covers for unattended "
" prints.

Self-calibrating bed, built-in filament flow sensor, automatic restart after a power outage. When working for hours on end, every safety feature counts.

Self-calibrating plate — silicone thermal pad (150°C)
Full or partial self-calibration of the print area before each job. Removable, flexible build plate for easy removal of even large prints.
60°C heat chamber
The temperature-controlled chamber maintains a consistent temperature throughout the printing process. This is essential for the most demanding technical materials: it reduces internal stresses and ensures layer adhesion.
Automatic restart after a power outage
A built-in sensor ensures that printing resumes when power is restored. For jobs that take many hours, no parts are lost due to a power outage.
Connectivity
Wi-Fi, Ethernet, USB
print from any network connection
7-inch Touch HD
full control from the machine
Custom Klipper
Raspberry + 32-bit board
Built-in webcam (optional)
real-time remote printing monitoring
Clara — AI assistant
Control via a web interface with a built-in wizard
OrcaSlicer
Recommended software — *.gcode files
Power supply
230 V — 16 A — 800 W / 2,200 W max
Standard single-phase 50–60 Hz. No dedicated electrical system required. Dimensions: 1070 × 810 × 1150 mm.

Built-in hot chamber

BOLD 755: Standard 60°C heated chamber.

The BOLD 755 comes standard with a closed chamber heated up to 60°C and a build plate heated up to 150°C. The controlled ambient temperature reduces thermal gradients during printing, which is essential for advanced engineering materials such as Nylon CF, PPS CF, and ASA CF; without a chamber, these materials are prone to warping and layer delamination on large prints.

BOLD 755 — 60°C Hot Chamber — Heating Infographic
Parameter
Heated chamber
Max plate
Recommended materials
Max power
Specifications
max 60°C
150°C
CF-reinforced nylon, CF-reinforced PPS, CF-reinforced ASA, and CF-reinforced poly
—advanced engineering plastics
2,200 W max
Operational Notes
Enclosed chamber with active air circulation
Silicone thermal pad — removable and flexible plate
Also compatible with standard materials (PLA, PETG, ABS)
Single-phase 230V — 16A. No dedicated electrical system required

The heated chamber is required for CF Nylon, CF PPS, and CF ASA when printing large-format objects. For applications primarily involving PLA, PETG, ABS, or GF Nylon, the chamber still functions but is not a critical factor. A Kentstrapper technician will work with you to assess your material mix and usage profile before purchase.

Technical specifications

Technical Specifications

From the official Kentstrapper technical specifications.

TechnologyFilament printing
SystemCartesian
Print volume700 × 500 × 500 mm
Extruders1 (Optional 2)
Extrusion systemDragon UHF — Magnetic S.E.M.
Filament diameter1.75 mm
Nozzle diameter0.4 — 0.6 — 0.8 mm
Heating plateSilicone thermal pad — up to 150°C
Hot chambermax 60°C — active and controlled
Plate CalibrationAutomatic (full or partial) — removable and flexible plate
FirmwareCustom Klipper — Raspberry + 32-bit board
SoftwareOrcaSlicer — *.gcode files
Screen7" HD Touchscreen
ConnectivityUSB, Wi-Fi, LAN
LanguagesItalian, English
Power Supply230V — 16A — 50/60 Hz — 800W / 2,200W max
External dimensions1070 mm × 810 mm × 1150 mm
CertificationCE, RoHS — Industry 4.0 compatible
Warranty1 year
Supported materialsPLA, PETG, ASA, ASA CF, ABS, TPU, GF Nylon, CF Nylon, PPS CF — filled engineering materials, ESD and UL 94 V-0 certified

Manufacture indoors or outdoors

The real cost of sending
is a major factor.

Large-format dies, tooling, and structural components come with a hidden cost: lead times, dependence on suppliers, and the cost of each iteration. BOLD eliminates this.

Entry
Lead time
Cost per unit
Geometric iteration
Design variations
Vendor lock-in
Machine Shop / CNC Subcontractor
2–4 weeks
For each item ordered
€800–€2,500
Setup + processing + shipping
+1 week
Full cost at every service
New order + pending
Full cost and lead time for each variant
High
Timelines, availability, NDA
BOLD 755 — in-house
4–24 hours
From the approved file to the finished part
€15–120
Primarily material costs
The same day
CAD modification + reprint
Material only
Lower cost, faster turnaround time
Zero
Entirely in-house production
Example — 30 setups per year (average for large-format dies)
CNC Machinist
36.000 €
€1,200 × 30 units/year
BOLD in-house
~5.200 €
Material + annual depreciation
Estimated net savings +€30,000/year

Typical payback period: 3–5 months after installation. The figures vary depending on the volume and type of component: use the calculator to get an estimate for your specific situation.

Calculate based on your situation

How many sets of equipment do you ship out each year?

The Kentstrapper ROI calculator estimates payback and net savings based on your production volume, industry, and materials. Get results in 2 minutes.

Made in Italy

Designed and built by
in Florence.

Since 2011, Kentstrapper has been developing industrial 3D printers in Italy. Each machine is hand-built and individually tested before shipment. Engineering, manufacturing, and support: all based in Florence.

2011
Year of founding
100%
Made in Italy
4.0
Industry 4.0
Tested and calibrated before shipment

Every BOLD is tested and calibrated in the production department in Florence before leaving the factory. It doesn’t arrive as a kit to be assembled—it arrives ready to print.

Industry 4.0 / Transition 5.0

BOLD is eligible for the Industry 4.0 and Transition 5.0 incentives. The Kentstrapper team assists with the documentation required to claim the tax credit. Read the complete guide to the 2026 incentives →

3D Shield Program

If the car stops,
don't you stop too.

No call center. Technical support is provided by the team that built the machine—the same people who use it every day on the production floor.

Hotline

Technical support via phone and WhatsApp Business. Responses from a technician, not a general operator. Machine downtime kept to a minimum.

Productive Backup

In the event of an extended downtime, we’ll activate our in-house Kentstrapper print farm to produce your urgent parts while we repair the printer.

Discounts and Training

Discounted access to technical materials (PA612-CF, PPS-GF) and training sessions for operators, either in-person at our Florence office or remotely.

1-year warranty on parts
Parts in stock — fast shipping
055 447 6656 · Mon–Fri 9 a.m.–6 p.m.

Who uses BOLD.

Fashion & Leather Goods
Prada* · Valentino*
Assembly jigs and tooling for large-format leather goods and fashion accessories.
Mechanical Engineering & Agriculture
Merlo · MW FEP
Functional components and structural prototypes for industrial and agricultural machinery.
Industrial & ICT
Reflexallen · TECH.PA.
Production equipment and components for electronic and industrial systems.
Orthopedics & Sports
Ortholabsport · HIPLAAS
Custom-made devices and assistive technology for orthopedics and sports equipment.

Next step

Talk to
, a technician.

Typical savings — 30 setups per year
Estimated net savings of over €30,000
Typical payback period: 3–5 months. CNC subcontractor: €800–2,500 per unit. BOLD: €15–120 per unit.
starting at €18,000
Direct purchase + VAT CE · RoHS · Industry 4.0
1-year warranty included

1-year warranty · Training included · Tested in Florence before shipping

Domande frequenti — Stampante 3D Kentstrapper BOLD 755

In quali settori viene utilizzata la BOLD 755?

La BOLD 755 è utilizzata in meccanica industriale, automotive, nautica, moda e pelletteria, ortopedia e agricoltura. Il volume di stampa 700×500×500 mm consente di produrre componenti di grande formato — maschere di controllo qualità, attrezzature di linea, stampi, fixture — che normalmente richiederebbero lavorazioni CNC o terzisti specializzati.

Qual è il volume massimo di stampa della BOLD 755?

La BOLD 755 ha un volume di stampa di 700×500×500 mm, tra i più grandi disponibili in una stampante 3D professionale FFF sul mercato italiano. Consente di produrre pezzi monolitici di grande formato senza necessità di incollare sezioni separate, mantenendo l'integrità strutturale del componente.

La camera riscaldata è inclusa di serie o è un'opzione?

La camera riscaldata a 60°C è inclusa di serie nella BOLD 755, non è un'opzione a pagamento. Il piatto raggiunge i 150°C. Questa configurazione è necessaria per stampare correttamente Nylon CF, PPS CF e ASA CF su pezzi di grande formato, dove i gradienti termici senza camera controllata causano warping e deformazioni critiche.

Qual è il risparmio concreto rispetto alla lavorazione CNC o al terzista?

Il costo per pezzo con la BOLD 755 è di 15-120 euro, contro 800-2.500 euro per la lavorazione CNC o il terzista. Su 30 attrezzaggi all'anno, il risparmio stimato è di circa 30.000 euro. Il ritorno sull'investimento si raggiunge in 3-5 mesi, con un leasing operativo a partire da 670 euro al mese.

La BOLD 755 è ammissibile alle agevolazioni Industria 4.0 / Transizione 5.0?

Sì. La BOLD 755 è certificata CE e RoHS e dispone di connettività Wi-Fi, LAN e USB per l'interconnessione al sistema informativo aziendale, requisito previsto dalla normativa Industria 4.0 e Transizione 5.0. Si consiglia di verificare le condizioni specifiche con il proprio consulente fiscale.

Qual è la differenza principale tra BOLD 755 e Zero HS?

La differenza principale è il volume di stampa: la BOLD 755 offre 700×500×500 mm contro i 320×320×320 mm della Zero HS, con un volume utile circa 7 volte superiore. La BOLD 755 ha la camera riscaldata di serie, mentre sulla Zero HS è disponibile nella versione CC. È indicata per dime lunghe, fixture di linea, maschere su pezzi automotive e nautici.

La BOLD 755 è prodotta in Italia?

Sì. La BOLD 755 è progettata, assemblata e testata a Firenze. Kentstrapper produce stampanti 3D professionali a Firenze dal 2011. Ogni unità è identificata da un numero seriale univoco e coperta da garanzia con assistenza diretta.

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