Student Case Study: TEMPUS 3D - PART – BBQ FOOT WITH ATTACHED WHEEL

By Danielle: Selkirk College Student of the Digital Fabrication a Design program.

Original and Multi-Jet Fusion 3D printed replacement part

The part that I have for our Scan Improve Repair Tempus Case Study is a BBQ foot with a

wheel attached.

I received this part from one of our instructors, Kailey. She had a friend with a broken part

that needed fixing. It was a BBQ foot with a wheel attached. The foot part that attaches the

wheel to the leg is the part that needs to be fixed. It would fall off the leg of the barbecue

constantly.

It would work better and be more stable if it had more support within the structure of the

part. It would make it stronger and stay in place every time the client needed to move the

unit to use it, clean it or store it away.

Original and Multi-Jet Fusion 3D printed replacement part

The client found it quite a headache every time they would want to use the BBQ and

needed to move it. Fixing the part will relieve that stress of the BBQ falling when moving and someone

potentially getting hurt. Fixing the part will also help it not fall and damage other parts of

the unit. I ask myself, when I am thinking of a new design or a part that needs

enhancements. Things to think about when coming up with solutions for the BBQ foot

would be: What is it lacking?

Why does this part continue to fail with its intended purpose?

The Scan Improve and Repair process was straightforward with this part. The intention of

fixing this part is to make it better, stronger, and more durable without falling off, having

the unit fail, damaging property, or falling and hurting someone. Shawn, Kailey and I had a discussion on what the part needed and what was going to be the best way to achieve success with this part. We talked about filament, what to extrude if any, maybe thickening the wall with more filament and deeper extrusions along with deeper indents all the way around. We need the to be careful not to change the structure of the part in its original state too much, otherwise, the BBQ leg will not fit will not with the

modified part.

These are my solutions or recommendations that I must fix this barbecue leg part with the

attached wheel. These improvements would be to make this part stronger and with better structure by

extruding extra filament to make it tighter, adding to the previous extruded parts.

I would do the same with indented parts as well. When the BBQ leg slides inside the leg, it

should be stronger and more durable. The steps that I would take to implement a solution for this problem would be starting with scanning the part with a a3D scanner. Many points as I can. Around the outer area and the threats inside. Collecting as much detail as you

can is the most important to save for more work later. After the scanning process is done, then I would upload that into VX Elements to create a mesh. Create a mesh and fix the mesh. Fix the holes, make sure it's solid. Then export that out of the VX Elements. Once that is completed it is then uploaded into Fusion 360 to sketch out the part using the mesh you just created. Sketch and then turning that into a 3D model from there. I would export that out of Fusion into an STl file and have it 3D printed. I would make sure that I check the thread count. Measure the bolt size and length and figure out the pitch. For the bottom of the leg in the fusion file, I would make sure that all the extrusions are still a little bit further out to give them more

support. Extend them a bit further then the original and fillet it the edges to keep it neat. This will give the part more stability without changing the structure of it too much.

Some of the challenges might be not being able to see and capture all the targets. It such an

important step to scan properly to be able to get as much information as we can to make that mesh

to be able to close it and turn it into a proper file that the 3-D printer can read the thread. Count

could be off, measure properly. If the extrusions are not the right dimension. When the leg is put

over top of this foot, it'll slip down because the extrusion won't be there to catch it.

If I were to do this part again, I would probably do it the same. I like the way this part and the mesh

came together very well. The scan was really great detail. We got a lot of information from it. So, it

imported into the and then VX Elements, then into Fusion quite well. It was a pretty quick

part. Design and create makes changes and implement them to seeing and problems.

I think this part was a success. I will hear from the clients.