SoliForum - 3D Printing Community — printed miniature gears, don't fit each other

Re: printed miniature gears, don't fit each other

null@example.com (carl_m1968) — Thu, 16 Jan 2020 21:53:57 +0000

pirvan wrote:

carl_m1968 wrote:
It will also shrink some if you leave it soaking to long in alcohol. I soak for five then have a spray bottle with alcohol that a spray with to rinse forcefully. Then I cure for 15 minutes max.
It's the other way around. Soaking it in alcohol for too long will absorb the alcohol and make it swell up.

It makes Wanhao stuff shrink. But based on it's smell good knows what might be in that stuff.

Re: printed miniature gears, don't fit each other

null@example.com (pirvan) — Thu, 16 Jan 2020 00:03:18 +0000

carl_m1968 wrote:

It will also shrink some if you leave it soaking to long in alcohol. I soak for five then have a spray bottle with alcohol that a spray with to rinse forcefully. Then I cure for 15 minutes max.

It's the other way around. Soaking it in alcohol for too long will absorb the alcohol and make it swell up.

Re: printed miniature gears, don't fit each other

null@example.com (carl_m1968) — Wed, 15 Jan 2020 22:09:43 +0000

It will also shrink some if you leave it soaking to long in alcohol. I soak for five then have a spray bottle with alcohol that a spray with to rinse forcefully. Then I cure for 15 minutes max.

Re: printed miniature gears, don't fit each other

null@example.com (pirvan) — Wed, 15 Jan 2020 14:15:09 +0000

Lower the exposure time a little. For example, if you're using 10 sec, go down to 8 sec and see how it comes out. Dont change the exposure for the first layers, those are needed for insuring good adhesion to the build platform. Only change the main exposure.

printed miniature gears, don't fit each other

null@example.com (c937a8c4c8) — Wed, 15 Jan 2020 06:53:09 +0000

I have printed some gears With an Anycubic Photon LCD that are meant to rotate each other but their <1mm wide teeth seem to be too thick. It feels like DLP printers extrude the printed object and thicken it a little in real life or the opposite, shrinks. Is this a correct assumption and expected behavior? How can it be accounted for, how much thinner or thicker should the 3d file walls or size be from the expected result to be printed correctly?