CAD File Prep and other Machine Information

Material Saving

Laser cutters 1 and 2 (Universal Lasers)

B.15 Laser Cutting Guide

We do not take bookings for laser cutting over the phone or via email. Staff must check your file in person to advise on any changes and the time it will take before a slot will be allocated on the day you’re in the workshop.

Please study the B.15 Laser cutting Guide to better understand how to format your files. You can find the guide here.

We work using AutoCAD and prefer drawings to be correctly scaled to your model working scale and saved as .DWG or .DXF format.

Maximum cutting extents are 800mmx450mm. Always check material stocks with us before planning your drawings.

Scale factors for CAD software

1:1 – No Change
1:2 – 0.5
1:5 – 0.20
1:10  – 0.1
1:20 – 0.05
1:25 – 0.04
1:50 – 0.02

1:75 – 0.013333

1:100 – 0.01
1:125 – 0.008
1:200 – 0.005
1:250 – 0.004
1:500 – 0.002
1:1000 – 0.001
1:1250 – 0.0008
1:2000 – 0.0005
1:2500 – 0.0004

Applications for Laser 1 & 2

Deep engraving – Non-contact engraving & cutting – Drilling – Precision scribing – Mask production – Prototyping – Sign making – Architectural model making – Component marking – Film/overlay cutting – Textile cutting – Gasket cutting – production – Rubber stamps & seals – Membrane switches -plastics up to-12mm and MDF/Plywood cutting up to 6mm.

CorelDraw files and illustrator file formats can also be used.

Bed Size 800mm x 450mm

Materials that are not permitted or cannot be cut using the laser cutter at B.15

Packing cardboard (usually brown with internal corrugation – Fire risk

Metal – Engraving on the surface only.

Foam core board – Fire risk

 


 

3D Printers

Our 3D Printers

  1. Stratasys F370 FDM Printer (Multiple single colour and Material options). Build Area:  355mm(L) x 254mm(W) x 355mm(H)
  2. Ultimaker S7 (Primarily PLA only) Build Area: 330mm(L) x 240mm(W) x 300mm(H)
  3. Form Fuse+ (Nylon Powder) Build Area: 155mm(L) x 155mm(W) x 300mm(H)

Cost is calculated using completed 3D Model File in the workshop. There are no ‘overhead’ costs to any type of 3D printing at B.15. Your jobs are charged at cost of the materials alone at the price they are sold to us by the manufacturer.

We will thoroughly check your proposals before approving the use of any of the machines so please allow time for this by getting in touch with us at the earliest convenience.

The machines work preferably .STL file format.

To save the file as an.STL from your chosen modelling software you must export it and if given the option save as Binary.

Your model must be a solid object not a collection of surfaces.

After you scale the model we recommend as a general rule that you check that objects component parts are not smaller than 1.5mm thick, anything smaller will be fragile and potentially not print properly.

Modelling Software

We recommend using Rhinoceros 3D (Rhino) or Autodesk 3D Studio Max. Sketchup is a good starter programme for visualisations but can often throw up odd problems when being translated for 3D printing so we advise trying to pick up the more advanced programmes such as Rhino and 3DSmax once you feel confident with your modelling.

Checking your files

Once you have discussed your model with staff and completed digital modelling we can further assess and repair your files using Magics Software in the workshop.


 

ISEL M40 CNC Router

Operation time can vary depending on the complexity and type of CAD file used. Please consult us with your ideas before going too far into the process of modelling for this method of manufacture.

There is no time charge for using our CNC. Material is charged based on type and quantity. Speak to a member of staff for your particular project requirements.

Other Equipment

Mayku Multiplier (Pressure Former)

Bed size forming limits 380x380x160(H)

Reducing plate size 250×180

Cricut Plotter Cutter

The Circuit can be used to create flat, cut shapes primarily from paper and vinyl. This machine is particularly useful for net shapes that can then be folded along score lines and assembled without scorching that can occur when laser cutting.

How to Prepare your Drawing File

Preparation instructions to follow. Please speak to a member of staff for information if you wish to use this machine in the meantime.

Recent Posts

B.15 Recycling Acrylic Waste with REFLO at Floreeda Fabrications

In any design workshop, managing waste is an ongoing challenge, especially when the waste produced isn’t in large enough quantities to interest commercial recyclers. In the B.15 workshop, one of our waste management responsibilities is to deal with Acrylic offcuts and waste produced through student modelmaking, most notably from laser cutting activity. Whilst the quantities may be small by industrial standards, the impact adds up over time and it has always been our intention to find a solution to this waste stream.

For several years the team have stored acrylic waste in the hope of finding a sustainable solution as opposed to the general waste route which many workshops often default to. A key complication is that Acrylic (PMMA) cannot be recycled with general plastic and requires a specialised process. Most local recycling services are not equipped to handle it and the services that do, often recycle the waste at sites abroad. After exhausting conversations with recycling companies coming up with no useful solution, we turned to a trusted local supplier, Floreeda Fabrications.

 

We found that Floreeda had been developing an initiative called REFLOW – a process that allows for in-house acrylic recycling. This takes end of life acrylic parts and recycles them through a clean manufacturing process with no additives, turning them into new, useable sheet material. This promotes a circular and closed loop economy within the industry.

We’re now thrilled to say that we’ve received our first batch of recycled sheet material made entirely from the waste we had been storing over the years. Some of this recycled material has already been put to use, forming part of our B.15 Modelmaking award trophies that were handed out to this years student winners at the Manchester School of Architecture 2025 Degree Show.

 

 

 

 

 

Lara collecting the first batch of 'B.15' type recycled acrylic sheet

Lara collecting the first batch of ‘B.15’ type recycled acrylic sheet

Looking ahead, we’re excited to see how our students will incorporate the new REFLOW Acrylic into their work. Not only does the material perform like the original, but its origin gives it a story of sustainable thinking and responsible design. We also look forward to collaborating further with Floreeda to explore what other acrylic mixes and colours might be developed from our collected waste in the future.

This partnership represents more than just waste reduction; it’s a model for sustainable collaboration between education and local industry. This small but symbolic step shows how material circularity can be embedded into the culture of making. We hope it inspires others to consider how taking responsibility for even small-scale recycling can have a real impact, showing that patience and persistence to find solutions pays off.

Find out more about REFLOW here

– Lara Gerrard, Workshop Technician at B.15 Modelmaking Wrokshop

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