I'm Josh, and I run the machines.
3D Print My Parts is run by 3D Guru
Three of us: me, my wife, and a designer who takes over whenever a part has to be drawn from scratch. We work out of a unit in Mildenhall, Suffolk, and we have been printing PETG for long enough to know which jobs go wrong and why.
This site and 3D Guru are the same workshop. 3D Guru is where our local and repeat customers deal with us; this is the front door for anyone in the UK who has a file and wants a price without a conversation first. Same printers, same filament, same person checking the part.
Why the site works the way it does
Most printing bureaus put a form between you and a price. You fill it in, wait, and get an email with a number you cannot check. That is fine if you are ordering a hundred parts and have a procurement process. It is miserable if you just want to know whether a bracket is going to cost you fifteen pounds or fifty.
So the quote tool does the arithmetic in your own browser. It reads the geometry out of your STL, works out how much plastic is in it and how long the machine will be busy, and shows you the price. Nothing is uploaded unless you decide to order. If the number is wrong for you, you close the tab and nobody has wasted an afternoon.
One material, and why
We print PETG. Only PETG. That is a deliberate limitation rather than a gap in the catalogue.
A workshop running five materials is constantly re-tuning: different temperatures, different bed adhesion, different drying, different failure modes. A workshop running one material gets very good at that one material. Our profiles are settled, our failure rate is low, and when you ask how a part will behave we can answer from experience rather than from a datasheet.
PETG is also the right default for the work people actually send us. It bends before it snaps, shrugs off damp and oils, and holds up to around 80°C — enough for a garage, a workshop, an engine bay's outer edges or a car interior in an English summer. PLA does none of that reliably. Read the guides if you want the reasoning in detail.
What sits in the workshop
Enclosed Bambu Lab FDM machines, running most of the night, with a 0.4 mm nozzle as standard. Build volume is 256 × 256 × 256 mm, which takes the overwhelming majority of parts people send; anything larger gets split, and we will tell you where the split should go so the seam lands somewhere sensible.
Three layer settings, and the middle one is right far more often than people expect:
- 0.30 mm — quick and cheap, visible layers, structurally fine. Fixtures, jigs, anything hidden.
- 0.20 mm — the default, and what we would pick for you nine times out of ten.
- 0.12 mm — slow and dearer. Worth it for text, fine detail, or a surface someone will look at closely.
What we turn down
We would rather lose the order than send you something that fails in service. So we say no to metal, to anything load-bearing in a vehicle or a building, to food-contact parts, to medical use, and to drawings with tolerances tighter than about ±0.3 mm. We also do not paint, sand, vapour-smooth or plate — parts leave as they came off the bed, supports removed.
If your job is one of those, say so in an email and we will usually be able to point you at the right process or the right person. That costs us nothing and saves you a wasted week.
Parts we designed ourselves
Alongside customer work we design and sell our own PETG parts — vehicle fittings, wall brackets, and replacements for clips that manufacturers stopped supplying years ago. They come off the same machines in the same filament, so they are the most honest sample we can show you of what your part will look and feel like.
VW Transporter T6 twin cup holder
Automotive fitting · Black PETG
Ninja Woodfire grill replacement knob
Replacement part · Black PETG
Stihl AP battery wall mount
Bracket & mount · Black PETG
VW T5 dashboard cup holder with phone slot
Automotive fitting · Black PETG
Where we are, and getting hold of us
Mildenhall, west Suffolk. Everything goes out by Royal Mail tracked post to anywhere in the UK, and if you are close enough to drive over you can collect for free — pick "Collect" in the quote tool and we will arrange a time.
If you have a file, the quote tool is faster than we are. If you have a question, a photograph of something broken, or a batch to talk through, the contact page has the phone number and the email address, and both reach a person.