Advanced CAD usage:

• Advanced solid modelling operations
• Modelling of parts with complex shapes and freeform surfaces
• Diverse and unconventional metodologies for CAD work
• Modelling operations for sheet metal parts

Manufacturing adaptation and preparation for manufacturing in Rapid Prototyping equipment

After passing the course, the student should be able to:

• use the full functionality of a modern CAD system to create high quality CAD models of parts with complex shapes, using a structured work method
• interpret 2D drawings and use them as a reference for creating 3D CAD models
• reflect upon and describe the development of his/her CAD skills during the course
• adapt and prepare CAD models for additive manufacturing

During first part of the course (P2), there are two classes of 3h every week. During these classes students are given gradually more advanced exercises, where a 3D solid model should be created from given 2D drawings. Exercises are done individually, or in pairs. For each exercise the students are allowed a certain time to work with the exercise, ranging from one hour for the first exercise to several 3h classes for the last one. When this time has elapsed, we demonstrate our solution to the exercise, and explain our approach in detail.

At the end of the first period (P2) of the course, students submit an individual written summary of all exercises, including one or more descriptions of and images of steps of particular interest, an image of the final result, and a reflection of the key learning experiences from creating the model. This report is commented by us (the teachers) and given a P(ass) grade if satisfactory or an Fx grade if further work is required.

During the second part of the course (P3), there is only one class of three hours every week. During this period and these classes students work (still individually or in pairs) with a number of highly complex modelling tasks, selected from a provided set of 2D drawings, classified as either yellow or red. The yellow drawings are complex, but can mostly be completed without much help from the teachers, whereas the red ones often require expertise help. Students have to complete models of at least one yellow and one red drawing, to fulfill the course requirements. In addition to this, students are required to carry out a sheet metal modelling task.

At the end of this second period (P3), students individually submit a new report, summarising all activities and key learning experiences during the whole course. This final report should include the (possibly revised) report from P2, but also a summary of and learning experiences from the models created during P3. When this final report has been submitted, each student has to book a presentation session, where student and teacher study and discuss the report and the models of the student. This session is the final examination of the course, and it is done interactively at a computer in our own computer labs.

Students who aim for a higher grade than a D or E (depending on the quality of their work), has to do additional tasks during P3. These additional tasks include creating and documenting further 3D models from drawings, in addition to the compulsory ones, and for the highest grades also review and comment on a P3 model created by a fellow student and write a self-reflection on their efforts and achievements during the whole course.

The course material consists of the drawings provided and task decriptions, all accessible through Canvas for registerd students.

We use Solid Edge in current version (Solid Edge 2021), which can be downloaded from KTH Software Download site, and installed on the student´s own Windows computer. Solid Edge is also available in our computer labs and in all Windows computer labs on KTH Campus.

Students at KTH with a permanent disability can get support during studies from Funka:

Funka - compensatory support for students with disabilities

A, B, C, D, E, FX, F

• INL1 - Homework Assignment, 3.0 credits, Grading scale: A, B, C, D, E, FX, F
• LAB1 - Laboratory Exercises, 3.0 credits, Grading scale: P, F

Based on recommendation from KTH’s coordinator for disabilities, the examiner will decide how to adapt an examination for students with documented disability.

The examiner may apply another examination format when re-examining individual students.

Laboratory Exercises ( LAB1 )

Completion and approved written documentation of all compulsory exercises during P2. The written documentation has to be submitted to an assignment in Canvas, no later than by the end of P2 (January 15, 2022)

Homework Assignment ( INL1 )

Written documentation/final report submitted and approved, and final presentation and discussion completed, all according to the grading criteria published below. For students aiming at the highest grade (A or B depending on our assessment of the quality), the final report should be submitted at latest on April 1, 2022, and the final presentation and discussion should be completed at latest during April 2022. A second deadline for submitting the final report, where final grades are lowered by one grade, is May 1, 2022, with a final presentation and discussion held during May 2022. Thereafter, only the lowest grades, D or E, will be awarded.

LAB1

All the exercises of the first period (Anchor block; Feed bracket; Coupler; Surface modelling exercises #1 & #2/Gearbox side cover, for those who have already done the surface modelling exercises; Injection pump bracket; Front spring bracket; Sheet metal modelling
exercise; Exercise in preparation for additive manufacturing), should be documented in a short written report (typically 5-10 pages), including your approach and a reflection on what you experienced and learnt for each of the exercises. We do not want a complete description of the modelling process for all the models, but you should describe the highlights and the most
interesting aspects of each model, in text and figures. When all compulsory exercises have been
completed and the report on these have been uploaded to an assignment in Canvas, we will
comment on your report and suggest improvements. If we judge your report to be good enough, you will get the first 3 credits of this course reported in Ladok, with a P(ass) grade. If it is judged to be of insufficient quality, we will ask for a revised version before you get the grade reported. The grading of this report will not influence your final grade in the course, but the comments made to your report will help you in improving the quality of your final report, which will be graded A-F.

INL1/Final grade

For a passing grade (E or D, depending on our judgement of the quality of your
models and report), you should:

• document your work (i.e. all exercises and assignments you have carried out throughout
  the course), in a written report (including the revised version of the report on the
  exercises of the first period), upload it to the Final Report assignment in Canvas, agree
  on/book a one-hour time slot for a presentation and final discussion of your final
  report, during which you present it together with your created models in an individual
  grading discussion with Lasse or Per.
• complete all the tasks (including documentation) and book a time for a presentation &
  grading discussion, no later than April 1st, 2022. If your report is submitted later than
  April 1st, 2022, but no later than May 1st 2022, your grade will be reduced by one step.
  After May 1st 2022, only grades D or E will be awarded. Presentations/grading
  discussions may be held after April 1st and May 1st respectively, but the final report has
  to be submitted by these dates.
• complete all the exercises, as specified for LAB1 above
• create part models of at least two different drawings, where at least one should be of red
  difficulty level. These two models do not count in the collection of points for
  higher grades.
• create a mailbox CAD model utilizing the sheet metal modelling functionality of Solid
  Edge, see separate document distributed during period 3/spring semester.

For a higher grade (D, C, B or A, depending on the drawings you have modelled and
our judgement of the quality of models and report). In addition to the above you should
complete the following tasks:

• from the original drawing and the corresponding part model made by fellow student,
  make an analysis of that student's modelling work (on a yellow or red level drawing),
  write comments about the quality of the model and if possible and necessary suggest
  improvements of the modelling process and the result.
• perform a self-critical reflection on the whole work you have done during the course
  and the results you achieved and present these reflections in writing before (in the final
  report), and orally during the individual grading discussion.
• collect points by creating additional part models from drawings according to the
  following:

Models of red drawings give 2 points; models of yellow drawings give 1 point.
N.B. The two compulsory models do not count in the collection of points for higher
grades.

• • For grade D/C – Collect 3 points by creating part models from at least two
    additional drawings, where the models are of different type, i.e. yellow and red
    respectively
  • For grade C/B – Collect 5 points by creating part models from the drawings where
    at least one is of category red
  • For grade B/A – Collect 8 points by creating part models from the drawings where
    at least two are of category red

Drawing categories: (green drawings are used for individual training only)
Yellow – complex modelling, complex forms, surface modelling - help is necessary
Red – very complex modelling, a lot of dimensions, complex forms, no guarantee that
everything can be modelled according to the drawing - expert help is required

Students who don't get a P grade on LAB1 after submitting a report, may upload a revised version of the report to get a P grade, however only two revisions are allowed.

It is not possible to raise a passing grade in the course.

Not available in this course.

Grades for LAB1 will be reported in Ladok shortly after the deadline for the P2 report.

Grades for INL1 and final grades will be reported as soon as possible after completion of all compulsory tasks in the course.

Preliminary grades will also be visible under Grades in Canvas.

• All members of a group are responsible for the group's work.
• In any assessment, every student shall honestly disclose any help received and sources used.
• In an oral assessment, every student shall be able to present and answer questions about the entire assignment and solution.