LittleRP2 Information

Forum dedicated to discussion and technical support centered around the LittleRP affordable, open source 3D resin printer.
goopyplastic
Posts: 236
Joined: Sat Mar 29, 2014 6:16 pm

Re: LittleRP2 Information

Postby goopyplastic » Wed Aug 09, 2017 11:39 pm

alstone wrote:
goopyplastic wrote:
alstone wrote:Greetings Goopyplastic,

I am from South africa and I would like to build a Littlerp2. Are you able to provide an 3d part assembly drawing (solidworks, rhino, spaceclaim or other) of the machine for those of us that may need to redesign to suit the parts or fabrication methods we have available to us. I have access to a sheet metal workshop and could more easily manufacture the body of the machine in 2mm aluminium. (Also we are metric). I also would like the projector inline and below the vat. If I can get 3d assembly drawing to work from it would make this more possible. I am more than willing to provide you with the design once completed so that you can see if you want to include it for others.

I tried to contact you via your email message thing at bigcartel.com but I don't think it's going through.

Thanks,
Alstone


I'll see what I can do, STEP ok?


A STEP will be fine thank you. Where will you post it or do you need an email address from me? Also, excuse my ignorance with regard to this; Where would I be able to purchase a littlerp2 kit? I am also considering morphing the littlepr2 into a smartphone/daylight resin printer. I see potential for this in that 4k phone screens are affordable when compared to 4k projectors. What are your views on this? (My interest is in fine detail jewelry design).

Thanks
Alan


I will email you, the STEP still isn't a general consumption thing. I wanted to rebuild the design in onshape but never really had the time. I still have some kits, if you email me what you are looking for we can go from there. Regarding smartphone, it really depends. Typically jewelers don't want to make molds and want a good castable resin. I am not aware of a daylight castable resin that is good, not to say it doesn't exist but I just haven't seen it. You really limit your resin availability with daylight, similarly with UV LCD.

Additionally the 5k lcd based resin printers are already pretty cheap and would have a similar pixel size as a 4k smartphone ... in the 42-50micron range. For jewelers this is kind of a borderline usable range, most are going to want 25micron if they can, some want even lower. If you want to go daylight you can just use the lcd's that the d7 and other printers are using but keep the backlight etc.. I think the lack of resin options will be a barrier though. LCD printers are getting very popular, more because of cost than performance. I still think there is a market in dental / jewelry by focusing on high pixel density and specialty resins.

alstone
Posts: 3
Joined: Tue Jul 11, 2017 7:22 am

Re: LittleRP2 Information

Postby alstone » Thu Aug 10, 2017 10:04 am

"I will email you, the STEP still isn't a general consumption thing."
I understand.

"I wanted to rebuild the design in onshape but never really had the time."
Ok , I am beginning to put it together from the dxf's and stl's. I am more than willing to draw it up for you. Obviously the stl's are uncomfortable to get back into solid parts ( radius's are lost) so the step file will be helpful. I am building it in spaceclaim so I can supply the assembly in a number of formats for you. Just let me know what suits you. (step, rhino, solidworks, etc.)

"I still have some kits, if you email me what you are looking for we can go from there."

I assumed you would have the kits up for sale somewhere, that's what I was asking about.

"Additionally the 5k lcd based resin printers are already pretty cheap and would have a similar pixel size as a 4k smartphone ... in the 42-50micron range. For jewelers this is kind of a borderline usable range, most are going to want 25micron if they can, some want even lower."

Yes, the resolution is paramount. 6k, 8k, and 11k smartphones are on the horizon. This is being driven by the VR industry. The only holdup I can foresee is the battery drain such screens pose. Is there a way to optically decrease the screen projection size with lenses, thereby improving resolution at the cost of size? Excuse my ignorance, I ask because I know nothing with regard to this.

"I think the lack of resin options will be a barrier though."

I agree with you. There are daylight resins being developed now. As to how good they are going to get is the question. ONO has developed a castable daylight resin and I guess we'll have to wait and see how good it is.

Thanks for taking the time to respond. I realise that you are busy.

TheSprinkle
Posts: 1
Joined: Fri Jun 30, 2017 10:07 pm

Re: LittleRP2 Information

Postby TheSprinkle » Mon Aug 14, 2017 5:31 am

goopyplastic wrote:
alstone wrote:Greetings Goopyplastic,

I am from South africa and I would like to build a Littlerp2. Are you able to provide an 3d part assembly drawing (solidworks, rhino, spaceclaim or other) of the machine for those of us that may need to redesign to suit the parts or fabrication methods we have available to us. I have access to a sheet metal workshop and could more easily manufacture the body of the machine in 2mm aluminium. (Also we are metric). I also would like the projector inline and below the vat. If I can get 3d assembly drawing to work from it would make this more possible. I am more than willing to provide you with the design once completed so that you can see if you want to include it for others.

I tried to contact you via your email message thing at bigcartel.com but I don't think it's going through.

Thanks,
Alstone


I'll see what I can do, STEP ok?


G'day Goopyplastic,
I'm in a similar position to Alstone here in Australia. I'm not able to feasibly source the parts however, I have access to machinery to fabricate the parts locally. Would it be possible if I too could have a copy of the 3d STEP file of the littleRP2? I'll need it in order to make adjustments for the machines I have available her at home.

Cheers, Jim.

Stefang
Posts: 1
Joined: Tue Sep 12, 2017 10:41 pm

Re: LittleRP2 Information

Postby Stefang » Sat Sep 16, 2017 10:24 pm

Hello. Being new to the actual printing (I have worked some with casting resin parts) I was wondering if you would be willing to do a rundown on initial setup and configuration or guide me to it if I missed it. At least enough to start printing.
I have the littleRP2 regular height, Acer x152h set for 25 micron, creation workshop 1.0.0.75, makerjuice castable resin. Will be printing jewelry items.

Would be very much appreciated. Thanks

inframan
Posts: 2
Joined: Wed Jul 12, 2017 4:20 pm

Re: LittleRP2 Information

Postby inframan » Wed Feb 28, 2018 12:12 am

Halp, I'm Looking for parts list for the EBA.

Don't see a EBA specific parts listed on the BOM and there is no text in the build Walkthrough (https://imgur.com/a/ujMIq), so am having a hard time guessing...

Thanks,

Allan