JMIVENTERPRISESStart a project ↗

Built with purpose. Made to work.

Ideas made
physical.

Custom fabrication, purposeful prototypes, and small-batch production across leather, wood, 3D printing, and laser engraving.

Explore capabilities ↓See selected work ↗
JM IV handmade leather portfolio open with paper and a pen
Close view of the JWM monogram on the leather portfolio
Built once.Used for decades.
JM IV / INDEPENDENT MAKER STUDIODESIGN · BUILD · REFINE

Capabilities

One shop.
Many ways to make.

From a sketch on paper to a finished object in hand, each project gets the right mix of craft, tools, and iteration.

01

Custom Leather

Purpose-built goods, hand-finished details, and durable pieces made to age with character.

Small goodsCustom fitBranding
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02

Wood Fabrication

Functional builds and one-off objects that bring natural material into precise, modern form.

CNC-readyFinishingAssembly
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03

3D Printing

Fast, practical parts for fit checks, working prototypes, shop aids, and low-volume production.

PrototypesFixturesShort runs
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04

Laser Engraving

Crisp personalization and production marking across wood, leather, and compatible materials.

LogosPersonalizationBatch work
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Full view of the JM IV handmade leather portfolio open with paper and a pen

Signature item

The leather
portfolio.

Made for the person who still values carrying good work in something worthy of it.

Cut, fitted, stitched, and finished by hand from full-grain leather. Each portfolio is built to develop character through years of meetings, field notes, and daily use—not to be replaced next season.

Custom commissionsFrom $400
Inquire about a portfolio ↗

Selected work

Proof is in
the process.

Real pieces from the JM IV workshop—made by hand, carried, tested, refined, and put to work.

Handmade brown leather multimeter case with brass snaps and hand stitching01

CUSTOM LEATHERCRAFT

Multimeter case

A hand-cut, custom-fitted leather case made to protect a trusted multimeter through years of workshop use.
Close view of the handmade JM IV metal branding iron02

MAKER'S MARK

Signed at the bench

A hand-built branding iron puts the JM IV mark on work that meets the standard.
Small custom wooden prototype held in the maker's hand03

WOOD + PROTOTYPING

Ideas take shape

One-off objects and working prototypes made to test fit, function, and feel in the real world.

The workshop

Not a factory.
A problem-solving shop.

JM IV Enterprises is Joseph Montgomery IV's maker studio—where practical ideas become tangible, well-considered objects.

The work lives where traditional craft meets modern fabrication: leather and wood alongside additive manufacturing, laser processes, and rapid prototyping. The goal is never technology for its own sake. It is the right process, thoughtfully applied, to make something useful.

01Function first
02Built to iterate
03Made with care

Start a conversation

Have an idea?
Let's make it real.

Share what you are trying to build, fix, test, or personalize. A rough sketch and a few dimensions are often enough to begin.

info@jmiv.shop ↗