Page Comparison

Sanding

• will need different seams

• after sanding, spray filler and spray paint can make the parts to look not like 3D printed

• able adjust how smooth we want the surface to be

• can be accurate in a way since we are sanding the parts that we want

• could make a mistake of sanding to much

• if it is a large part, time consuming to sand the whole part

https://www.youtube.com/watch?time_continue=258&v=NLoB52nPuao&feature=emb_logo

https://www.youtube.com/watch?v=0vgynnYzo08

Using Acetone

• pour small amount of acetone into the glass that has paper towel in it

• put the model inside the glass, and put a small fan in it so that the air moves

• displace water around so acetone doesn’t leak

• acetone will melt the 3D model

• take it out, and dry the 3D model

• acetone does its job to smooth our the surface

• takes only about an hour

• must be printed with ABS (Acrylonitrile Butadiene Styrene)

  • which gives toxic chemical when heated

  • shrinks when it is cold

    • not suitable

• when doing this, could be dangerous since it is flammable

• details can be gone

https://www.youtube.com/watch?v=6xFUNFG-UKE

https://www.youtube.com/watch?v=rn4edNztaPU

Using Spray paint / Spray Fast drying polyurethane

• spray paint (more than usual) then spray a layer fast drying polyurethane, fan it

• do this multiple times

• no need to sand the 3D model

• the details might be gone

https://www.youtube.com/watch?v=rn4edNztaPU

Shorter Layer height

• set the layer height as a low number

• no need to do an extra step of smoothing out the surface

• time consuming

• longer the time, easier for the machine to get jam and stuck

https://all3dp.com/2/3d-printer-layer-height-how-much-does-it-matter/

Heating

• use a heat gun / hot air gun and along the surface of the 3D model

• fast (I guess?)

• able to choose parts to smooth it out

• can change the shape entirely if it is too hot

https://www.youtube.com/watch?v=SI2AqrxIfkI

https://all3dp.com/2/pla-smoothing-a-beginner-s-guide/

Using brush on coating or 3D Gloop

• brushing on to the 3D print

• easy procedure

3D Gloop

• brushing on to the 3D print

• easy proceduredepends on types of epoxy

• limited resource

https://all3dp.com/2/petg-smoothing/ https://www.3dgloop.com/