Colloidal Silver and Gold Forum

Production Techniques and Chemistry => Colloidal Silver Production => Topic started by: waboni on April 27, 2020, 05:19:59 PM

Title: 3D Printing of Production Vessel Lid
Post by: waboni on April 27, 2020, 05:19:59 PM
Hi guys, great thread, very informative, I'm just finishing my colloidal silver generator setup using a bench PSU.

This is my Setup:


>BK Precision 9130 Triple Output Programmable DC: this one is a little pricey but have a bunch of features, including: output timer for set and forgive operation.
>Four E's 5 Inch LED Digital Hotplate Magnetic Stirrer
>1 Liter glass beaker
>Glass encased stir bar
>6" x 1" fine silver sheets for anode/cathode
>Own created beaker cover.

I was producing ionic silver using a Silver Puppy device with polarity reversal, so this is the main reason to switch to the "old school" method.

I want  to share with you my cover design just in case you may be interested on it, this one may accommodate many shapes of anodes/cathodes, including Rods, Sheets, Troys with about 1 1/2 inches of separation. Also includes a temp probe holder.

The cover may be 3d printed, I have used nylon 12.

(http://prntscr.com/s6vd13)

(http://prntscr.com/s6vdnp)

Cheers
Title: Re: 3D Printing of Production Vessel Lid
Post by: RedDogJT on April 27, 2020, 06:35:07 PM
Great use of a 3d printer, and great design. I've wondered more and more how to use a 3d printer so its not just a toy.
Title: Re: 3D Printing of Production Vessel Lid
Post by: waboni on April 27, 2020, 07:06:52 PM
Great use of a 3d printer, and great design. I've wondered more and more how to use a 3d printer so its not just a toy.

Thanks RedDogJT, I don't actually own a 3d printer, instead of that I paid for printing. I have a trick for those interested in this design or trying something else printed, I may share with you a link from the company I used, they have a referral program that will give you a new user bonus of $50 in printing service (this one will cost around $36 including 3 brass inserts that will be required for the banana jack and the probe holder knob). So if you subscribe using the link you'll be paying just for shipping.

I can also share the Digi-key parts link for the banana jacks and probe holder screw.

Anyone interested please feel free to email me.

waboni
Title: Re: 3D Printing of Production Vessel Lid
Post by: imcool on April 28, 2020, 05:45:30 PM
Hi guys, great thread, very informative, I'm just finishing my colloidal silver generator setup using a bench PSU.

This is my Setup:


>BK Precision 9130 Triple Output Programmable DC: this one is a little pricey but have a bunch of features, including: output timer for set and forgive operation.
>Four E's 5 Inch LED Digital Hotplate Magnetic Stirrer
>1 Liter glass beaker
>Glass encased stir bar
>6" x 1" fine silver sheets for anode/cathode
>Own created beaker cover.

I was producing ionic silver using a Silver Puppy device with polarity reversal, so this is the main reason to switch to the "old school" method.

I want  to share with you my cover design just in case you may be interested on it, this one may accommodate many shapes of anodes/cathodes, including Rods, Sheets, Troys with about 1 1/2 inches of separation. Also includes a temp probe holder.

The cover may be 3d printed, I have used nylon 12.

(http://prntscr.com/s6vd13)

(http://prntscr.com/s6vdnp)

Cheers
will your 3D printed material for the lid withstand high steam temp? wont it melt or deform the lid ?
Title: Re: 3D Printing of Production Vessel Lid
Post by: waboni on April 28, 2020, 09:11:22 PM

will your 3D printed material for the lid withstand high steam temp? wont it melt or deform the lid ?

Hi imcool, according to the material datasheet, the melting temperature for Nylon 12 is 176° Celsius and the deforming point is 163° Celsius.

http://s3.amazonaws.com/xometry.craft/files/specsheets/datasheet-pa-2200-balance-1-0.pdf (http://s3.amazonaws.com/xometry.craft/files/specsheets/datasheet-pa-2200-balance-1-0.pdf)

This company stocks a lot of different materials like PTFE that resists extreme temperatures, but it is very expensive. I believe  Nylon 12 is enough for water steam.

waboni
Title: Re: 3D Printing of Production Vessel Lid
Post by: RedDogJT on April 29, 2020, 12:34:31 AM
Great use of a 3d printer, and great design. I've wondered more and more how to use a 3d printer so its not just a toy.

Thanks RedDogJT, I don't actually own a 3d printer, instead of that I paid for printing. I have a trick for those interested in this design or trying something else printed, I may share with you a link from the company I used, they have a referral program that will give you a new user bonus of $50 in printing service (this one will cost around $36 including 3 brass inserts that will be required for the banana jack and the probe holder knob). So if you subscribe using the link you'll be paying just for shipping.

I can also share the Digi-key parts link for the banana jacks and probe holder screw.

Anyone interested please feel free to email me.

waboni
Can you link me up buddy?  I sent and email to you, but did not hear back.
Also, did you say you created the model?  If so can it be easily modified to fit a 1000ml Pyrex Beaker?
Title: Re: 3D Printing of Production Vessel Lid
Post by: imcool on April 29, 2020, 02:01:11 AM

will your 3D printed material for the lid withstand high steam temp? wont it melt or deform the lid ?

Hi imcool, according to the material datasheet, the melting temperature for Nylon 12 is 176° Celsius and the deforming point is 163° Celsius.

http://s3.amazonaws.com/xometry.craft/files/specsheets/datasheet-pa-2200-balance-1-0.pdf (http://s3.amazonaws.com/xometry.craft/files/specsheets/datasheet-pa-2200-balance-1-0.pdf)

This company stocks a lot of different materials like PTFE that resists extreme temperatures, but it is very expensive. I believe  Nylon 12 is enough for water steam.

waboni
waboni,can you help me with a material which can withstand 200C in water? I am thinking to 3d print a part for colloidal gold
Title: Re: 3D Printing of Production Vessel Lid
Post by: waboni on April 29, 2020, 03:44:22 AM
Can you link me up buddy?  I sent and email to you, but did not hear back.
Also, did you say you created the model?  If so can it be easily modified to fit a 1000ml Pyrex Beaker?

RedDogJT, I haven't received anything yet from you, I will send a message to you instead in order to know if there is something wrong with my profile. The cap was made to fit a standard 1000ml beaker, just confirm that the inner diameter is about 10 cm.


waboni,can you help me with a material which can withstand 200C in water? I am thinking to 3d print a part for colloidal gold

imcool, I was checking the materials available for 3d printing, and found two that are best suited for high temp applications: Ultem 9085 & Ultem 1010 these materials uses FDM technology instead of SLS equipment used with nylon.

I also found that PTFE (Teflon) has excellent thermal properties, but it requires CNC machining that makes it a not affordable solution.

I'm still confused about the 200° Celsius (392° fahrenheit) requirement, based on the fact that water's boiling point is about 100° C, and the cap wouldn't get  as hot as the hotplate surface unless you let it stand directly over it, I believe that a lower temperature rated material won't result affected, but it is always recommended to go farther and if the money is not the issue the mentioned materials will withstand 200°C and even be flame retardant.  ;D

waboni
Title: Re: 3D Printing of Production Vessel Lid
Post by: RedDogJT on April 29, 2020, 05:31:51 PM
It is possible that the little email message thingy is not working. You've not seen mine and I've not seen your email.  Maybe you can post the link here? :-\
My 1000 No.1000 pyrex beaker is actually 4.75 inches or 12.05cm outside diameter, or 11+cm inside diameter
Title: Re: 3D Printing of Production Vessel Lid
Post by: waboni on April 29, 2020, 07:10:33 PM
It is possible that the little email message thingy is not working. You've not seen mine and I've not seen your email.  Maybe you can post the link here? :-\
My 1000 No.1000 pyrex beaker is actually 4.75 inches or 12.05cm outside diameter, or 11+cm inside diameter

RedDogJT, the cover outer diameter is 12 cm, so It won't be a problem, please use the referral link below from Xometry and sign up, once registered I will be able to see your email address and share the design with you.

https://mbsy.co/llm2Z (https://mbsy.co/llm2Z)

this link will be also  valid for anyone who may want to get the $50 credits for 3d printing services at Xometry for making the beaker cover or print anything of your preference.

Disclaimer: I'm not part of Xometry, so I'm not making any kind of publicity for them, but I highly recommend this company as a customer.


waboni
Title: Re: 3D Printing of Production Vessel Lid
Post by: Smoke7 on April 30, 2020, 04:46:51 AM
Hi guys, great thread, very informative, I'm just finishing my colloidal silver generator setup using a bench PSU.

This is my Setup:


>BK Precision 9130 Triple Output Programmable DC: this one is a little pricey but have a bunch of features, including: output timer for set and forgive operation.
>Four E's 5 Inch LED Digital Hotplate Magnetic Stirrer
>1 Liter glass beaker
>Glass encased stir bar
>6" x 1" fine silver sheets for anode/cathode
>Own created beaker cover.

I was producing ionic silver using a Silver Puppy device with polarity reversal, so this is the main reason to switch to the "old school" method.

I want  to share with you my cover design just in case you may be interested on it, this one may accommodate many shapes of anodes/cathodes, including Rods, Sheets, Troys with about 1 1/2 inches of separation. Also includes a temp probe holder.

The cover may be 3d printed, I have used nylon 12.

(http://prntscr.com/s6vd13)

(http://prntscr.com/s6vdnp)

Cheers


Would you post the STL file for those who have  3D printer and would like to print?
Thank you.
Title: Re: 3D Printing of Production Vessel Lid
Post by: waboni on April 30, 2020, 03:40:52 PM
Would you post the STL file for those who have  3D printer and would like to print?
Thank you.

Hi Smoke7, I would have liked to do that but I fear the design was tailored to some features only available at Xometry printing services, for instance the cover holes was specifically dimensioned to fit their brass inserts, also I will advice you that some materials used for 3d printing at home are not suitable for high temperature applications, tolerances are another issue here unless you own an SLS printer.

I have provided a link  to register and get the promo credits, where you can order this part printed and pay just 12+ usd for shipping.

waboni
Title: Re: 3D Printing of Production Vessel Lid
Post by: Smoke7 on April 30, 2020, 09:42:37 PM
Would you post the STL file for those who have  3D printer and would like to print?
Thank you.

Hi Smoke7, I would have liked to do that but I fear the design was tailored to some features only available at Xometry printing services, for instance the cover holes was specifically dimensioned to fit their brass inserts, also I will advice you that some materials used for 3d printing at home are not suitable for high temperature applications, tolerances are another issue here unless you own an SLS printer.

I have provided a link  to register and get the promo credits, where you can order this part printed and pay just 12+ usd for shipping.

waboni

My secure DNS server blocking your link. But thank you anyway.
Title: Re: 3D Printing of Production Vessel Lid
Post by: waboni on May 01, 2020, 12:27:24 AM
My secure DNS server blocking your link. But thank you anyway.

Smoke7, please try the expanded url, it could be that your secure DNS server is not capable of resolving the shortened link provided:

https://get.xometry.com/register?mbsy_source=26e348b9-22cf-4c0a-82c8-18d763860dc0&campaignid=32812&mbsy=llm2Z&segmentid=1 (https://get.xometry.com/register?mbsy_source=26e348b9-22cf-4c0a-82c8-18d763860dc0&campaignid=32812&mbsy=llm2Z&segmentid=1)

waboni
Title: Re: 3D Printing of Production Vessel Lid
Post by: RedDogJT on May 01, 2020, 09:34:43 PM
Okay I signed up and looks like there is a $50 credit referral waiting for you.
So where do I find the lid?
Title: Re: 3D Printing of Production Vessel Lid
Post by: waboni on May 02, 2020, 12:49:22 AM
Okay I signed up and looks like there is a $50 credit referral waiting for you.
So where do I find the lid?

I just shared a quoted design with you over the Xometry platform, when checking out, please select the option to use your "credits".

waboni
Title: Re: 3D Printing of Production Vessel Lid
Post by: bcboy on July 02, 2020, 12:23:38 AM
Okay I signed up and looks like there is a $50 credit referral waiting for you.
So where do I find the lid?

So how did your lid turn out? Did the $50 credit referral work for you?
Title: Re: 3D Printing of Production Vessel Lid
Post by: Gene on July 02, 2020, 01:21:53 AM
Is the material you're using certified for food use?  You will get water condensation on the inside while the cell is running while heating.  IF enough it will drip back into your cell water.  If its not food use certified, it could pick up stuff you really don't want in the Colloidal Silver.

Title: Re: 3D Printing of Production Vessel Lid
Post by: SaltyCornflakes on July 02, 2020, 11:35:11 AM
These plastics work for 3D printing because they are heat sensitive and heat malleable. This is NOT the material you want to bring in contact with constant +90°c steam. If you only produce your Colloidal Silver cold, then it may be okay.

Cut it out of a piece of stainless steel if you have some available. Or use glass or ceramics.
Title: Re: 3D Printing of Production Vessel Lid
Post by: cfnisbet on July 02, 2020, 09:02:29 PM
I don't know if it is the same plastic, but the beaker lids we (and in particular Kephra) make are cut or turned from polythene kitchen cutting boards.

These are about as food-friendly as you can get, I would have thought. I myself use polythene grating of the type used for covering guttering (to stop leaves blocking the gutters).
Title: Re: 3D Printing of Production Vessel Lid
Post by: Gene on July 03, 2020, 03:16:05 AM
HDPE (High Density Polyethylene) is what cutting boards are made of. Its TOUGH, HARD and relatively heat resistant and guaranteed food contact certified.  Other food grade plastics, not so much.

You might be able to get a scrap piece large enough from a plastics supplier. They might even cut it to size for you though I doubt they'd make it round but its worth asking.

HDPE is what I'm going to use when I get around to doing it. Years ago I got about 1/2" thick HDPE sheet scraps. I'm going to cut a circular piece, drill 2 holes for the electrodes, route a circular channel in the bottom side thats half as deep as the sheet thickness which matches the top lip of the mason jar so it won't accidentally get pushed off while the cell is running.

For the electrode holders, I was going to screw (you can't glue this stuff together) a square of the same material over each hole, drill all the way through using the holes already in the lid as guides and then drill another hole from one of the sides to the center hole of both pieces, thread it and use a set-screw to hold the electrodes.  I can then just alligator clip  the wires or if you prefer, you can use a stainless screw instead of a set screw and just round/smooth the end so it doesn't cut into the wire and choose a long enough length that once the wire is secured, there's maybe 1/2-3/4" sticking out so you can clip your alligator clips to it.

It doesn't have to be fancy - just work and be reliable.

The other problem with 3d printed items is that due to the nature of how 3d printing works, they're NOT waterproof.  There are gaps between the slices and these can pick up dirt and stuff and also absorb water and thats just asking for trouble.

BTW, plexiglass is not food safe.  The reason being that when they react the methylmethacrylate monomer to turn it into solid polymer, the reaction leaves some unreacted monomer and its not so good if it gets into your body.  This is why you don't see food grade plexiglass items.

The acrylic they use in some plastic cups,... is something different.
Title: Re: 3D Printing of Production Vessel Lid
Post by: bcboy on July 03, 2020, 06:00:18 AM
Here is what I am going to use. I should be able to make 2 lids with a 5" hole saw. Then use the table saw to make dado or rabbit joint on the lid. Or maybe use the table saw for the whole process.
https://youtu.be/6TCFzoRVo1k
Winco - CBWT-610 - 6 in x 10 in x 1/2 in White Cutting Board.
https://www.walmart.com/ip/Winco-CBWT-610-6-in-x-10-in-x-1-2-in-White-Cutting-Board/138169192?athcpid=138169192&athpgid=athenaItemPage&athcgid=null&athznid=PWVUB&athieid=v0&athstid=CS004&athguid=4522ab97-007-17312cea5f8dc1&athancid=null&athena=true
(https://i5.walmartimages.com/asr/c57cdde8-afb5-49bd-8574-e0cb00d0ef64_1.6981ec008097b696813ccc7ef1ae30a7.jpeg?odnWidth=282&odnHeight=282&odnBg=ffffff)

Title: Re: 3D Printing of Production Vessel Lid
Post by: Gene on July 03, 2020, 07:30:50 AM
OMG! Thats gonna break the bank (wink). NO, its not that big but big enough and for sure cheap enough. It says its polyethylene so for sure its HDPE.

The corners you cut off for making a circle are probably going to be big enough to make those electrode holders I spoke of so don't chuck them - use them. Yeah, you'll have to cut them into squares but thats not that hard.  You could even cut the squares out after tracing the circle outlines before cutting the circles. That might even be simpler because now you're not cutting up slivers of plastic. You're cutting them out of a bigger sheet which will be much easier to do. Sometimes (most times) sequence matters.

Do post photos of the results. I'm sure we'd all love to see them.
Title: Re: 3D Printing of Production Vessel Lid
Post by: waboni on July 05, 2020, 03:24:30 AM
Okay I signed up and looks like there is a $50 credit referral waiting for you.
So where do I find the lid?

So how did your lid turn out? Did the $50 credit referral work for you?

Hi bcboy, I'm sorry for responding this late.
Yes it worked, here are some pictures of the SLS laser printed lid and how it fits my current production setup:

waboni


Title: Re: 3D Printing of Production Vessel Lid
Post by: bcboy on July 05, 2020, 04:24:50 AM
Holy that looks GREAT...... :D
Title: Re: 3D Printing of Production Vessel Lid
Post by: waboni on July 05, 2020, 06:16:31 AM
Is the material you're using certified for food use?  You will get water condensation on the inside while the cell is running while heating.  IF enough it will drip back into your cell water.  If its not food use certified, it could pick up stuff you really don't want in the Colloidal Silver.

Dear Gene, according to FDA Regulations CFR 21, I found this.

"Sec. 177.1500 Nylon resins.
The nylon resins listed in paragraph (a) of this section may be safely used to produce articles intended for use in processing, handling, and packaging food, subject to the provisions of this section:
...
(9) Nylon 12 resins are manufactured by the condensation of omega- laurolactam."

While most SLS powders are graded food safe, the particles on the surface of printed parts might not fuse completely, resulting in parts that are inherently porous and do not deal well with moisture and mold growth.

Nylon 12 offers a good strength, durability, chemical resistance and good heat deflection temperatures (HDT of 177°C)

So, for just $12.88 I paid for shipping (promo credit didn't covered that) I believe you can't go wrong.

There is another printing methods like FDM with ULTEM 1010 material, that will be food certified but it is very expensive, about $162.21.


Title: Re: 3D Printing of Production Vessel Lid
Post by: bcboy on July 06, 2020, 12:36:00 AM
Okay I signed up and looks like there is a $50 credit referral waiting for you.
So where do I find the lid?

So how did your lid turn out? Did the $50 credit referral work for you?

Hi bcboy, I'm sorry for responding this late.
Yes it worked, here are some pictures of the SLS laser printed lid and how it fits my current production setup:

waboni

So what was the total cost with shipping did you pay out of pocket?
Title: Re: 3D Printing of Production Vessel Lid
Post by: waboni on July 06, 2020, 01:16:21 AM
Okay I signed up and looks like there is a $50 credit referral waiting for you.
So where do I find the lid?

So how did your lid turn out? Did the $50 credit referral work for you?

Hi bcboy, I'm sorry for responding this late.
Yes it worked, here are some pictures of the SLS laser printed lid and how it fits my current production setup:

waboni

So what was the total cost with shipping did you pay out of pocket?

I only paid for shipping, at that time it was $12.88.

Please be aware that 3d printing is just for the lid, the two female banana jacks (black and red) as well as the knurled thumb screw should be purchased separately (this one is only needed if your hot-plate comes with a probe).
Title: Re: 3D Printing of Production Vessel Lid
Post by: waboni on January 02, 2021, 05:53:03 AM
Hi, just in case someone else may be interested in printing the beaker cap, Xometry is offering free shipping, so using my refer your will end paying nothing for it.(I can send a $50 usd promotional credit that you may apply to the cap I designed)

Disclaimer. I don't work for Xometry but I will also earn the same amount if you open the account and order the Cap.

Best regards,

waboni
Title: Re: 3D Printing of Production Vessel Lid
Post by: edwire on March 02, 2021, 10:10:59 PM
Hi, I signed up, will the $50 credit referral is apply to my account?.
So where do I find the lid designs?
Title: Re: 3D Printing of Production Vessel Lid
Post by: edwire on March 02, 2021, 10:12:09 PM
Can I make changes to the design? size for smaller beaker or mason jar?
Title: Re: 3D Printing of Production Vessel Lid
Post by: cfnisbet on March 03, 2021, 12:31:05 PM
Sure, it's only an electrode holder.
Title: Re: 3D Printing of Production Vessel Lid
Post by: edwire on March 03, 2021, 02:55:10 PM
Do you have the design?
Title: Re: 3D Printing of Production Vessel Lid
Post by: edwire on March 03, 2021, 02:58:58 PM
Also is this the same plastic as Kephra's lids (kitchen cutting boards).
Title: Re: 3D Printing of Production Vessel Lid
Post by: cfnisbet on March 03, 2021, 03:52:38 PM
Also is this the same plastic as Kephra's lids (kitchen cutting boards).
Yes.

If you are content for the end result to be inferior to a lathe-turned offering, a sharp chisel and a few files will adequately turn a piece of cutting-board mounted in the chuck of a drill. A fretsaw will cut the blank out of the cutting-board before you finish it off with the other tools.
Title: Re: 3D Printing of Production Vessel Lid
Post by: edwire on March 04, 2021, 10:59:34 AM
Also is this the same plastic as Kephra's lids (kitchen cutting boards).
Yes.

If you are content for the end result to be inferior to a lathe-turned offering, a sharp chisel and a few files will adequately turn a piece of cutting-board mounted in the chuck of a drill. A fretsaw will cut the blank out of the cutting-board before you finish it off with the other tools.
Do you know of a finish product for sale? like the one at the silvertron store.
Title: Re: 3D Printing of Production Vessel Lid
Post by: edwire on March 04, 2021, 11:02:03 AM
@waboni can you share your design?
Title: Re: 3D Printing of Production Vessel Lid
Post by: waboni on May 06, 2021, 02:36:59 AM
@waboni can you share your design?

Dear Edwire, sorry for replaying this late, sure I can, please PM me in order to share it with you, responding to your referral credits question, yes I suppose that they should be there, at the time of ordering there is an option to redeem credits, also note that Xometry is offering free shipping on any order right now.

I alway prefer the 1L beaker for easy cleaning and more volume production. just for you to take in consideration.

waboni

Title: Re: 3D Printing of Production Vessel Lid
Post by: Gene on May 06, 2021, 05:56:50 PM
You can buy a small, cheap cutting board (HDPE) from Walmart.  Dollar stores sell them but they're small and way too thin.  A dremel tool with a milling bit as long as you're careful, you can cut a circle out of it and then make a circular channel, maybe half the depth of the material thickness to sit over the rim of the jar you're using and just drill a couple holes to push the electrodes through. The only thing you'll have to deal with is how to secure the electrodes.  Friction works but plastic wears over time and expands and contracts with changes in temperature where its better if you figure out some way to secure them.
Title: Re: 3D Printing of Production Vessel Lid
Post by: cfnisbet on May 08, 2021, 09:34:45 AM
One way is to suspend them through the hole and then attach a small clothes peg or other clip to the electrode to stop it falling down through the hole. Or use a crocodile clip for the same purpose. Or a dab of silver solder on the electrode, applied above the lid,
Title: Re: 3D Printing of Production Vessel Lid
Post by: Gene on May 08, 2021, 07:30:18 PM
Though you need the appropriate tools to do so, the best I've seen is a small piece of plastic (scrap from the cutting board) with a hole in the center slightly larger than the diameter of the wire with a threaded hole in the side you install a set screw so you can gently tighten it to "capture" the wire and prevent it from moving.  The glue or secure this to the lid somehow.  For HDPE you might want to drill a couple small holes straight down through it and partially into the lid to screw it down since there isn't much in the way of glue or adhesive that will glue HDPE to itself.

If you use a knurled knob or a set screw that sticks out, you can just clip to it with alligator clips once you adjust the depth of the silver wire or copper cathode in the water though the only issue with this is that if you need to adjust it you have to remove the alligator clip.  Better probably to make the wire a bit longer so it sticks out the top more and just alligator clip that up far enough you still have some room to adjust the wire without having to remove the clip.

As long as you use a deep enough thread set screw (fewer turns is usually a coarser thread - like 24 threads per inch as opposed to 32 (6-32).

There are lots of ways to do it. This is just another to add to the list.

It doesn't have to look pretty. It just has to work (wink).
Title: Re: 3D Printing of Production Vessel Lid
Post by: Pemf silver on May 09, 2021, 05:05:22 PM
An oversized plastic lid with a Wire terminal works great as well ..
Title: Re: 3D Printing of Production Vessel Lid
Post by: Pemf silver on May 19, 2021, 02:10:57 AM
Can PLA filament be used ?
I just purchased a 3D printer , Going to design a similar lid for my set up using tinker cad 👍🏼
Title: Re: 3D Printing of Production Vessel Lid
Post by: cfnisbet on May 19, 2021, 10:28:30 AM
An oversized plastic lid with a Wire terminal works great as well ..
This (wire terminal connector) is what I personally use. After much experimenting, this is easily the most versatile.
Title: Re: 3D Printing of Production Vessel Lid
Post by: Pemf silver on May 19, 2021, 05:11:45 PM
Thank you I agree!
I just got the 3D printer and want to tinker around with it ;)
It’s mostly to print out my own electronics project boxes .

Thanks again .
Title: Re: 3D Printing of Production Vessel Lid
Post by: waboni on May 27, 2021, 02:42:46 AM
Thank you I agree!
I just got the 3D printer and want to tinker around with it ;)
It’s mostly to print out my own electronics project boxes .

Thanks again .

Hi, probably yes, but I'm a little bit concerned about if your PLA filament is food safe and how much temperature it may withstand (just in case you decide to use while on heat-plate).

waboni
Title: Re: 3D Printing of Production Vessel Lid
Post by: Pemf silver on May 29, 2021, 03:04:40 AM
This is my 3D printed version of a Lid for 2000ml Beaker
And this is the 3D printed lid for my project box
Title: Re: 3D Printing of Production Vessel Lid
Post by: Gene on May 29, 2021, 08:44:56 PM
PLA is actually an organic plastic made from CORN. Yes, that funny yellow stuff that comes on long ears (wink) - at least some constituent part of it.

PLA == PolyLactic Acid

Its supposed to be biodegradable though I doubt seriously if you spit on it it will dissolve right before your eyes (wink).  I'd think the concern would be it biodegrading gracefully in a landfill over 5-10-20 years.

You CAN get OTHER plastic filament but how you print with it, speed,... differs (as is to be expected).  I don't know, since I don't own a 3d printer, if any of the filament is considered food safe so someone is going to have to look.  I can't see how PLA wouldn't be given the source but stranger things have happened.

What I'm going to do (you'd laugh if you saw my electrode holder right now - gotta put a picture of that up some day for posterity) is take a 1/2" HDPE disc I have left over from hole sawing a hole in a bigger piece. I'm going to mark a few different rings  on it that coincide with the diameters of a couple different size jars I use on occasion. I'm going to take a dremel tool with a ball end milling bit in it and carefully make a 1/4" or even 5/16" deep channel following each circle so it'll fit on the various jars.  Then I'll drill some holes, put electrode holders in that are adjustable and I'm good for the long haul for next to nothing in cost.

People always look at me like "you're saving THAT? Why?".  Oh boy, let me tell you (wink). Without fail you need it the day AFTER you toss it. We've all been there.
Title: Re: 3D Printing of Production Vessel Lid
Post by: Pemf silver on June 05, 2021, 02:13:02 AM
My 1st 3D test print , a control knob for my Dr Bob Beck Blood electrification device, know that I have the printer dialed in , will print out my Lid for my 2000ml Beaker 👍🏼
It’s lots of fun !
Title: Re: 3D Printing of Production Vessel Lid
Post by: waboni on October 27, 2021, 02:39:37 AM
Hi Folks, just in case you are interested in printing or modify my cap I have decided to post the editable files for Autodesk Inventor and the PDF drawing for the brass inserts (if you decide to print it as is you would need to select "3" in "modify part" option at the xometry.com website.

If you want it printed at Xometry you can use this link https://mbsy.co/llm2Z (https://mbsy.co/llm2Z) to sign up, it would give you $50 usd plus free shipping (I will also receive $50 as part of the referral program, this will also allow me to test new stuff that I use to share in some public places like this).  You will end paying only $6.94 (the whole total before applying the Credits at checkout is $56.94)

Then you will need two 10-32 screws to hold the troy, sheet or wire silver anodes using regular alligator cables or 10-32 banana audio plugs (I can share the digi-key.com part numbers) for using with banana plug cables.

Cap CAD file link. https://1drv.ms/u/s!AmZp7IlYKBU2mLs4nP4x0IM6TOihkQ?e=20DFyT (https://1drv.ms/u/s!AmZp7IlYKBU2mLs4nP4x0IM6TOihkQ?e=20DFyT)

PDF drawing link. https://1drv.ms/b/s!AmZp7IlYKBU2mLs3APWl_uG6cFvQ_g?e=PuxfUZ (https://1drv.ms/b/s!AmZp7IlYKBU2mLs3APWl_uG6cFvQ_g?e=PuxfUZ)
Title: Re: 3D Printing of Production Vessel Lid
Post by: Gene on October 28, 2021, 05:53:20 AM
Just make sure that whatever plastic filament you use to print your beaker lid (I assume electrode holder?) that its a food grade plastic.  Why? Because as you run the cell, water vapor (if you're heating) will condense on the bottom (inside) side and water will either drip off back into solution or run down the inside of the container back into the water. You don't want the condensate to pick up something you wouldn't want to ingest.

I'm not sure PLA is food grade.

Polypropylene is, HDPE, polystyrene maybe a couple others.

Also, what seems to be becoming a standard "go to" 3d cad/modelling package for making 3d printed items is Fusion 360 by autodesk.  Its free to use and it stores the data files in the cloud and yes, you can back it up on your hard drive on your PC if you choose to.

I don't have a 3d printer so I haven't used it yet but a friend does and the things he's shown me that he's done with it are amazing. He also has an NC controlled mill - a BIG one.  The bed on that thing is easily 3 feet square, maybe bigger.
Title: Re: 3D Printing of Production Vessel Lid
Post by: waboni on November 03, 2021, 04:57:13 PM
Just make sure that whatever plastic filament you use to print your beaker lid (I assume electrode holder?) that its a food grade plastic.  Why? Because as you run the cell, water vapor (if you're heating) will condense on the bottom (inside) side and water will either drip off back into solution or run down the inside of the container back into the water. You don't want the condensate to pick up something you wouldn't want to ingest.

I'm not sure PLA is food grade.

Polypropylene is, HDPE, polystyrene maybe a couple others.

Also, what seems to be becoming a standard "go to" 3d cad/modelling package for making 3d printed items is Fusion 360 by autodesk.  Its free to use and it stores the data files in the cloud and yes, you can back it up on your hard drive on your PC if you choose to.

I don't have a 3d printer so I haven't used it yet but a friend does and the things he's shown me that he's done with it are amazing. He also has an NC controlled mill - a BIG one.  The bed on that thing is easily 3 feet square, maybe bigger.

The default material I use from Xometry (included in the price I posted) for my cap and the ones I printed for my friends, is PA 2200, also known as Nylon 12, It is for SLS technology not FDM PLA, I attached the spec sheet, there you can verify that is bio compatible and approved for food contact.

"bio compatible according to EN Ionic Silver Oxide 10993-1 and USP/level VI/121"
"approved for food contact in compliance with the EU Plastics Directive 2002/72/EC (exception: high alcoholic foodstuff)"