Drying Ovens: Difference between revisions

Latest revision as of 10:18, 11 June 2024

We got two decommissioned lab drying ovens that can be used like a normal kitchen oven, with the important difference that these ovens are for non-food items.

House Rules

Use common sense - a running oven consumes a lot of energy and can even be a fire hazard. Therefore, do not leave an oven running when you leave the Space!

Uses

Feel free to try whatever is safe, i.e. certainly won't damage the oven or any people!

So far, members have used these ovens to...

melt plastic (only with good ventilation!)
cure paint or epoxy more quickly
dry moist filament before 3D printing
shrink-fitting: expand one metal piece to insert a second one (e.g. a bearing) that's been contracted by cold
...?

after this scooter part was heated in a drying oven and the bearings were cooled down with freeze spray, the parts slid together easily and became solidly connected once everything was back at the same temperature

It may also be possible to temper metal after hardening - has anyone tried?

Memmert UM 400 (#1)

MachineInfoBox Memmert UM 400 (#1)

Synonyms:	DE: Trockenöfen (Sg. Trockenofen)
Type:	Drying Ovens
Used with:	heat-resistant gloves
Location:	3D Printing Area
Access Requirements:
Status:	Working
Manual:	frankshospitalworkshop.com
Tutors:
Similar (More or Less):	pizza oven

According to the dials, this oven could reach a temperature of around 250°C. However, the nominal temperature according to the manufacturer is 220°C.

It has about 38 × 38 × 33 cm (width × height × depth) free space inside (about 2 cm more between the ridges on the sides, top and bottom).

Memmert UM 400 (#2)

MachineInfoBox Memmert UM 400 (#2)

Synonyms:	DE: Trockenöfen (Sg. Trockenofen)
Type:	Drying Ovens
Used with:	heat-resistant gloves
Location:	Hot Metal Area
Access Requirements:
Status:	Working
Manual:	frankshospitalworkshop.com
Tutors:
Similar (More or Less):	pizza oven

According to the dials, this oven could reach a temperature of around 250°C. However, the nominal temperature according to the manufacturer is 220°C.

It has about 38 × 38 × 33 cm (width × height × depth) free space inside (about 2 cm more between the ridges on the sides, top and bottom).

@@ Line 1: / Line 1: @@
-{{MachineInfoBox
+We got two decommissioned lab drying ovens that can be used like a normal kitchen oven, with the important difference that these ovens are for non-food items.
-|machine name=Drying Oven
-|image=
-|synonyms=Trockenofen,
-|type=
-|material=
-|location=
-|access=upon reading
-|status=Working
-|firmware=
-|software=
-|manual=
-|tutors=
-|used with=
-|similar=Pizza oven
-}}
-We got a decommissioned lab drying oven that can be used like a normal kitchen oven, with the difference being this oven is for all non food items.
+==House Rules ==
+Use common sense - a running oven consumes a lot of energy and can even be a fire hazard. Therefore, '''do not leave an oven running when you leave the Space!'''
+==Uses==
+Feel free to try whatever is safe, i.e. certainly won't damage the oven or any people!
+So far, members have used these ovens to...
+*[[Project:Precious Plastic|melt plastic]] (only with good ventilation!)
+*cure paint or [[epoxy]] more quickly
+*dry moist [[filament]] before [[3DP|3D printing]]
+*shrink-fitting: expand one [[metal]] piece to insert a second one (e.g. a [[bearing]]) that's been contracted by cold
+* ''...?''
+[[File:Shrink fit example.JPG|thumb|left|200px|after this scooter part was heated in a drying oven and the [[bearings]] were cooled down with [[Freeze Spray|freeze spray]], the parts slid together easily and became solidly connected once everything was back at the same temperature]]
+It may also be possible to [[temper]] metal after hardening - has anyone tried?
+<br clear="all">
+{{MachineInclusion|order=ascending}}
+[[Category:Heat]]
+[[Category:Metalworking]]