3d printing?

[layton]

Hey, so.. i brought a drill press for scrap price, a nice big industrial one but it has a plastic gear thats missing a few teeth.. does anybody have a 3d printer or know somebody who would be interested in printing me a gear? the gear is about 70mm DIA and 20MM thickness

edit: is this the right place to post? i was unsure

[OddDuck]

Long shot but if the 3D printing doesn't work out try these guys

http://www.sdp-si.com/

it might involve a hell of a learning curve though.

[Swoop]

Draw it up in solidworks and save it as a DXF file.

There are commercial printing places around now that will print one up for you.

[rambaldi]

Draw it up in solidworks and save it as a DXF file.

There are commercial printing places around now that will print one up for you.

Depending on how decent you need the component to be, some of the Auckland city libraries have 3d printers. A bit far from Layton down in Nelson though.

[Grumph]

Personally, I wouldn't replace a broken plastic gear with another plastic one. You're inviting history to repeat...

The tumbler gears in my lathe were diecast alloy....now replaced with steel.

[rambaldi]

Personally, I wouldn't replace a broken plastic gear with another plastic one. You're inviting history to repeat...

The tumbler gears in my lathe were diecast alloy....now replaced with steel.

Except when plastic gears are designed to fail intentionally. Much cheaper to replace a single plastic gear than a full gearbox. You see it a bunch in swank kitchen stuff. People spend up on fancy wank then get shitty when the 5c plastic gear dies instead of the $100s gearbox.

[geoffm]

Hey, so.. i brought a drill press for scrap price, a nice big industrial one but it has a plastic gear thats missing a few teeth.. does anybody have a 3d printer or know somebody who would be interested in printing me a gear? the gear is about 70mm DIA and 20MM thickness

edit: is this the right place to post? i was unsure

What does the gear drive? What model of drill?
I don' t know if a 3D printed gear will be strong enough.
You can buy gears ready made in plastic or metal as long as your existing one is a standard size and pitch which can then be bored to fit.
e.g. https://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20180821131216&SearchText=steel+gear
https://www.amazon.com/s/?ref=nb_sb_noss_1?url=search-alias%3Daps&field-keywords=steel+spur+gear&rh=i%3Aaps%2Ck%3Asteel+spur+gear

Otherwise there are companies that can cut custom gears and could do one in aluminum or nylon. I have the dividing head and milling machine but never made a gear.

[Swoop]

Depending on how decent you need the component to be, some of the Auckland city libraries have 3d printers. A bit far from Layton down in Nelson though.
A suggested process and there may be more local printers down that way.

Another idea is Shapeways, but the delivery distance is far greater. Their process is good, where they will run your file through an analysis and highlight areas needing improvement and return the file to you for fixing up, prior to final print.

[layton]

thanks for the replys fellas, the drill press is an arboga copy. the gear is plastic because as others have said its a sacrificial gear, if one of the steel helical gears broke it would be very expensive to replace. i have found somebody who can do it for me in CHCH.

[OddDuck]

Yes I can see why you bought it!!

Drill press envy.

[Grumph]

thanks for the replys fellas, the drill press is an arboga copy. the gear is plastic because as others have said its a sacrificial gear, if one of the steel helical gears broke it would be very expensive to replace. i have found somebody who can do it for me in CHCH.

Get two....