Finding a freezer

Writing about what to look for in a freezer.

When we were looking for a freezer, there were three main requirements it had to meet.

Firstly, it had to be big enough for us to be able to fit a CNC and our other hardware into, but not so big that it would be unpractical to have stationed at a lab. Utdyp 

Secondly, the freezer had to be modular. To ensure a maximized use of space, the freezer could not have cooling rods in-between the different freezer drawers. This would make it impossible to find a big enough CNC. Vis med bilder 

Thirdly, the freezer had to be able to reach low temperatures. Since freezers are made for storing food, not drilling prostates, they usually did not go below -18*C. However, more modern freezers often come with a super cooling function, meant for cooling the freezer more than usual after if had been opened, to help protect the food. This can often take them down to -30*C. Vis 

Finding a CNC

Writing about what to look for in a CNC.

When we were looking for a CNC we had several requirements it had to meet. 

Firstly, it had to be big enough, but not too big. Milling prostate slices would require a minimum bed size of approximately ... mm X ... mm. But the CNC also has to fit inside the freezer. Here you have two options. Measure the size of your freezer and order a CNC that fits within the specifications, or buy a CNC that is modifiable and can be cut down to fit in the freezer. Utdyp om hva som gjør at den kan bli kuttet ned 

Secondly, since the components are to be operating in a -30*C environment, it is important that they can withstand it. How can this be checked/What components are most important to check 

Modifying the CNC

Writing about what changes must be made for the CNC to be compatible with the freezer.

The CNC needed some modifying in order to fit into the freezer, and to mill in the way we want it to mill.

The first thing we did was cut the profiles and leadscrews so that the CNC would fit together.

Since the axes came pre-built with stepper motors and end-plates, we first had to dismantle it. 

We measured precisely and marked in right angles. 

The profiles wer

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Building the CNC

Writing about how the instructions were followed to assemble the CNC.

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The clamping mechanism

Writing about how to produce and attach the clamping mechanism

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The z-axis

Writing about how to produce and attach the z-axis with the spindle

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The camera

Writing about how to produce the mount and attach the camera

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