Drilling out a .35mm Nozzle to .40mm

[heathenx]

I have a .35mm nozzled ordered. I'm considering drilling it out to .40mm. Can I just drill it or should I ream to size?

[Polygonhell]

I have a .35mm nozzled ordered. I'm considering drilling it out to .40mm. Can I just drill it or should I ream to size?

Drilling would be fine, most of the rated nozzle sizes are for the drill size, not the hole size. The JHead is the one exception I'm aware of.
The Nozzles are brass (i.e. very soft) so you'll want to be careful, you're trying to remove a relatively tiny amount of material, I'd try it by hand using a drill bit in a pin vice.

[heathenx]

@Polygonhell
Alright. Thanks for the advice. I'll try to be super careful.

Oh! I guess I should ask. The best way to remove the .5mm nozzle from a Rostock Max v2 is to heat the extruder first, right? Are these in very tight or just snug?

[Eaglezsoar]

@Polygonhell
Alright. Thanks for the advice. I'll try to be super careful.

Oh! I guess I should ask. The best way to remove the .5mm nozzle from a Rostock Max v2 is to heat the extruder first, right? Are these in very tight or just snug?

Yes, the hotend should be heated to approximately 230c and they can be very tight. I feel the best approach is to hold the heat block with a cresent wrench
and put a socket on the nozzle. Just proceed carefully because at that temperature they can burn you with just brief contact. If you have not run filament
through the hotend yet, it should not be too tight. The opposite is also true. If you don't have a socket to fit the nozzle you can get by with a box wrench.

[heathenx]

I've already run PLA through my .5mm nozzle. When you say put a Crescent wrench on the hotend before using a socket on the nozzle are you referring to the big hex nut on top of the hotend?

[Eaglezsoar]

I've already run PLA through my .5mm nozzle. When you say put a Crescent wrench on the hotend before using a socket on the nozzle are you referring to the big hex nut on top of the hotend?

No, the cresent wrench would hold the heat block at the bottom. It is what the nozzle screws into, you have to hold this heat block while attempting to unscrew the nozzle. It is the part the resistors run through to heat it.
If you cannot get a crescent to fit onto it because of the resistors being in the way, perhaps an open end wrench. I do not like using pliers to hold it because the pliers can leave nasty scars in the metal.

[heathenx]

Ah! I see. I don't use pliers either. I won't attmept it without proper tools.

[bdjohns1]

Ah! I see. I don't use pliers either. I won't attmept it without proper tools.

We just recently got a new packaging machine from Germany, along with a few German engineers/technicans over to set it up. All of them had these wrenches - the genius lovechild of channel-lock pliers and a crescent wrench.

http://www.knipex.com/index.php?id=1216 ... 1500%5C%5C

Grips without marring thanks to flat jaws, not fussy to keep the right size like a Crescent wrench so you don't round off your nuts and bolts.

Also priced like a German tool. $50 from Amazon.