Finally got some new filament in. So i have begun printing bottom plates and top covers.
also just found out that one of my suppliers sent me different tft touch screens that require slight modifications in the software when i told them to give me the same ones. so i have to wait for those to come in.
i have also built the units for people outside the kickstarter and i will be painting them this weekend.
One of my early bird backers has sent me there broken electronics and that seems to speed things up. i will see how that goes and if that is quite a bit better option to just send in the broken parts.
first week of school has been pretty chaotic adding classes and all i should be getting back in the grove this weekend.
focus is going to be fixing broken units and building international units
All second batch has shipped
i have started to work on support on the first batch. if you have not received a email about a support ticket created for you or that you havent created a support ticket yet than please let me know about the damage on your unit.
I have 6 more support tickets left to fulfill. please make sure to answer any questions i have asked on the support ticket and that i know about all the damage
i am back in school so i will be back to part time
i will build the units ordered outside kickstarter this weekend.
International units will be done in a month or so and the modules will be developed after that. should have international units out in 2 months.
All units in 2nd Batch were all shipped by Wednesday of this week. if you have any issues with your units let me know also let me know about how your box showed up so i can increase my package quality for other bakers thanks.
International backers surveys to come out soon.
I have got some preliminary findings.
My findings were that moisture effects 3d printing: Kinda/Not Really
filament was removed from water pitcher after 1 week. Filament was found to be very brittle and a lot of it snapped off after removing. however once the water on the surface flashed off it was ok to handle and even feed through my bowden Kossel.
filament was put into a toaster oven (surprisingly efficient toaster oven) and baked for about 2-3 hours at 150F. the filament that was added was room environment filament that turned out to be 2.3%+ by weight moisture. (which is pretty high i try to extrude filament at .08%).
all filaments were extruded at about 50mm/s at 217C the part was the 3d benchy at all original scale with 15% infill and no supports.
From my 3 3d prints comparing side by side you can see that there is a big difference between the water logged and the "baked" filament.
however i had another print (4th print) that was the same file that i just changed some settings such as increasing the print temp i got the same quality as the "baked" filament".
so my preliminary findings that as long as you don't store your filament submerged in water you should be able to print fine and baking filament to remove moisture is not worth the power.
5 out of the 6 units of the second batch have been sent out. the remaining one will be sent Wednesday or Thursday.
Printing of replacement parts/ international backers to begin Thursday onward
I will be working on replacement parts before I begin making international backers units
1 person in the second batch has still not submitted his/her survey please do so.
I start school Thursday so I will be back to part time.
First video of my research series on my YouTube is coming very soon (Thursday/Friday). it is talking about moisture in filaments effect on 3d printing. check out my research blog to get a glimpse before the video is made.
Check bellow for pictures.
For my second (or fist video not sure yet). How much does moisture actually effect 3d printed models and what artifacts will we see?
For the experiment we will be looking at a range of PLA filament moisture content
Each filament sample will be enough for about 2 benchys
1st sample forced dried pla in oven at 150F for 4 hours. This filament is octave
2nd sample is filament that has been open to a house environment for its lifetime after being unsealed from the manufacture. This filament is Octave
3rd sample is filament that has been put into a pitcher of water. This filament will be assumed to be the maximum amount of moisture that pla can hold. (worst case). this filament is octave
all samples will be used to print the 3d benchy (same gcode file) to compare the 3d printing artifacts and quality
pitcher of water
about 100 feet of PLA filament
oven capable of 175F or 80C
Print 2 3D benchies per sample of filamnet
Compare side by side the different filaments
Filament has already been added to the water pitcher and i will leave it in for 1 week (ready to print monday the 22nd) . my experiment will be performed then. and video/write up posted shortly after.
Everything is done and i have decided on how to handle the shipping for this week
i have shipped one unit using the new corn starch packing pellets out to to south California ( coming to you Andrew i will get in touch with you soon).
When that unit gets there without damage i am going to send one out further to South Carolina (to you Stan).
If that one also arrives without damage i am going to send the rest of the batch
I am going to start printing the replacement parts for the people that need new electronics kits or welded couplers.
STILL 1 PERSON THAT HASN'T FINISHED SURVEY PLEASE DO SO
also make sure that if you have any damage make sure that i know exactly what needs to be replaced and i will be picking up boxes to ship replacement parts soon.
Development on the expansion modules will begin while i am sending out the replacement parts to domestic backers. also the after kick starter units will be sent out.
i go back to school august 24th (1 week) i will be going back to part time to finish development and building of international backers units by the 24th of next month (hopefully) and hopefully i am done with the expansion modules to send them packing internationally.
also check out my new series on youtube and my website/blog for 3d printing research.
check out pictures below
My first video is going to be about PLA moisture and how much there is. I know that it is a big issue for filament extrusion but also what is it's effects on 3d printing.
For the experiment i will be looking for a range of moisture that will be found in different situations of PLA filament that will be found in the wild
Each filament sample will be about 14 - 16 grams in weight which is about 24-26 feet all 1.75mm PLA filament
1st sample brand new unopened sealed filament being opened then checked for moisture. This filament is natureworks 4043D from protopasta.
2nd sample is filament that is never sealed and just open to a house environment for its lifetime after being unsealed from the manufacture. This filament is Octave
3rd sample is filament that has been put into a pitcher of water. (waterlogged filament). This filament is to test how much water PLA will actually hold. (worst case). this filament is octave
All of this filament samples should give us a full range for filament that is not purposely being dried.
Analytical scale that has .001g resolution
pitcher of water
about 75 feet of PLA filament
oven capable of 175F or 80C
Weigh filament and record
Put filament in oven at 175F (80C) for 3-4 hours (natureworks 4043D resin drying process)
Weigh filament and record
Take after weight and divide it by the before weight. Take that answer and subtract it from 1 that is your percent.
Filament has already been added to the water pitcher and i will leave it in for 1 week. my experiment will be performed then. and video/write up posted shortly after.
water filament is 14 grams in weight.
Welcome to the research blog. In my research i will be posting videos/blogs/write ups on things that i research in green technology which is reduce, reuse and recycle technology/science.
For right now it is going to be centered around 3D printing and its materials.
you can keep up to date here by following the blog and checking out the videos i post on youtube here Youtube.
if find my research of value and would like to add to my research funding or maybe get your hands on some of my prototypes/kickstarter projects that i develop check out my Patreon here Patreon
currently i will have about 1 or 2 videos a month and as funding increases i will increase my videos stay tuned.
i will also have a permanent page for my write ups on my site aswell i will set that up soon.
Thanks for checking out my research blog and make sure to auto follow the blog and subscribe to my youtube channel and pledge on Patreon i will catch u guys later.
On to Electronics. Everything else is finished. So just electronics testing then shipping.
Ordered my new packaging materials. Corn Starch packing peanuts. i have ordered 12 cubic feet. so that should be my main packing material along with wall plastics which are still cutting mats and i am trying to price pla sheets but that is not fleshing out.
still on time that one person that has not responded to the survey for second batch please respond asap. thanks
printing will begin for the people whose electronics broke. and now i have packing material for it with peanuts. you will also get the new version of the cover and the fan shroud. if anything else broke in addition to the electronics and plastic that i dont know about please let me know.
i am still on time for shipping everything out by end of next week and mabye some at the end of this week.
for people that ordered units after kickstarter your units will be painted after shipment of batch 2 finishes.
international i will begin working on the expansions and building your units asap.
about 90% done with the welding
still about 80% done with printing as the techshop makerbot is having some issues need to find the funds to fund a large enough format printer of my own
90% done with the drilling
painting is going to start this week
i will have to probably make a order of temp sensors, power supplies and a few other things that i need.
i will be printing the covers and plates for new electronics packages for the people whose electronics broke after the 7th unit in second then i will be printing the outside orders which there is like 3-4
still on time for 80% of units out by 2 weeks from now for second batch.
IMPORTANT: i notice that one of my 2nd batch backers hasn't responded to the survey please respond. thanks.
i have been messing around with adding the code for a more dynamic temperature control to bring down the hysteresis to 1 degree up and down. to allow for a very higher precision of control. unfortunately i cannot really test it out because i don't have a unit to test anymore. I have one left over in the garage that i will put together until then i will just be working on the code side. v1.1.1 is just me working on it. v1.2 will contain those changes.
Welding has started.
80% of drilling has been finished
and 100% of steel cutting has finished
70% of 3d printing has finished
this week printing of the electronics mounting plate has finished and i will start printing the modified covers
this week i also plan to start painting
i will be doing something different this batch. i will start shipping out the units as i finish making them. When they are finished and ready to go i will ship them out. that way hopefully if any more issues arise with usps i can spot those issues and mitigate them before i ship any other units.
people that purchased a unit after the kickstarter your units will be painted after the kickstarters backers units go out. sound be around 1-2 weeks after kicksarter backers units ship
people that got damage units in last batch i will most likely be preparing a new electronics kit and plastics for you guys to bolt onto your unit if anything else is missing please let me know.
Also if you are looking for arduino uno clones i have them up on my ebay check them out here 11$ for 2 free shipping http://www.ebay.com/itm/2-Arduino-Uno-SMD-CLONE-U-S-Based-Shipping-/322186110850?rd=1
estimated shipping date of batch 2 is 2 weeks from now
After first batch of kickstarter units have been sent we now have the production version of the mulstistruder v1.0. Is now set and now improvements will be set on top of this design. The mechanics and the electronics. posted to this blog entry is pictures of the multistruder v1.0 and posts after this are improvements onto the multistruder v1.0.
Finished cutting all steel needed. For next batch.
drilled all necessary holes on 1/8 inch main plate
released version of 1.1 of the MOS (Multistruder Operating System). check out details on my multistruder dev blog. new version is posted on my github.
started writing the plans to make a multistruder yourself. you can check it out at link bellow.
started posting to multistruder dev blog again and i am going to talk about when anything else is added to the multistruder there. check it out.
stated a github to hold all my software (for now) as well as the 3d printed parts stl https://github.com/TheGreenEngineersCompany/MOS
posted the survey for the second batch backers. 5 of 7 have responded please march backers check your survey and get that in asap.
people that ordered units for domestic shipping will get there unit after i ship out this next batch of 7. they will be made at the same time just packed and shipped after i insure that all the domestic backers are shipped out.
i have still not heard back from anyone that had a broken unit please get back to me so we can move forward to repairing your unit.
I am talking to usps about insurance. whether or not that goes through i want to send you the parts that are broken. please watch the electronic and assembly video and tell me what you are missing and what is broken.
just shipped out mikes unit. so now all 13 from the first batch are shipped out. In mikes i put alot of padding in we will see how it fairs in shipping and adjust the packaging accordingly on future shipments.
again i will be delayed by printing of the large plastics. eta on finishing all metal work end of july. and shipping out early august. website units will be shipped out early to mid august.
Packaging that i am experimenting with
is the "spring pad" biodegradable/Compostable cardboard pad. you can see bellow.
also the honey comb shaped "bubble wrap" replacement also biodegradable/compostable honey comb recycled paper.
biodegradable/compostable and renewable packing tape.
all from ecoenclose.
i am also experimenting with lining the sides of the box with "cutting mats" cut to size in order to keep the sharp steel from going though the side of the box.
Multistruder Operating System v1.1 release
Added AA (analog Amplifier) calibration number offset. This offset allows your to get the correct Temperature Current to display.
Fixed some issue with double switching pages by adding delays
removed some data points from each screen and moved them around.
All updates live on gethub update to your controller. video on how to do that coming soon.
Kickstarter batch 2 survey posted. I have started building the units for batch 2 and the units for the domestic orders placed on my site after the kickstarter. please finish the survey as quick as you can. we are looking at late July early august for kickstarter backers and early August to mid August for domestic orders placed on my site after the kickstarter. Again thanks for your patience .
i have comprised the bill of materials (for steel) after setting the first batch of kickstarter units as version 1.0
Multistruder BOM (steel):
3/4" Square Tube 1/16" Wall 2" long (two required)
3/4" Square Tube 1/16" Wall 4" long (one required)
5/8" Square Tube 1/16" Wall 12" long (two required (second one required for version 1.1))
2" x 4.5" x 1/4" Plate (one required)
4" x 12" x 1/8" Plate (one required)
4" x 4" x 1/8" Plate (one required)
4" x 4" x 1/4" Plate (one required)
3.5" x .5" x 3/16" Bar (three required)
This will be posted on a permanent document page on my site. as well as on my github (github will only contain
started a github to host all of the files for the MOS system and 3d printed files. I am currently updating all of the files and new versions will be coming every week. check it out here https://github.com/TheGreenEngineersCompany.
fixed my kossel at home so i will be printing at home aswell. i have started printing the new versions of the fan duct to send out to the people whose broke and for new backers.
i am going to try to start assembling the units at home. as i mainly weld at home and i do have all the equipment needed so it will just be easier.
i have bought some bubble rap (a little late i know) however it is super thin it will take at least 6-10 sheets per unit to pack the boxes. so i am going to start looking into a packing material from eco enclose. which looks like a cardboard bubble rap replacement and it comes in 1/4, 1/2, (and i guess 3/4 and 1 inch) thick. it looks very promising because of how padded it looks. It is also all 100% recycled and compostable material. i have a sample piece coming in tomorrow as well as some plant based tape. aswell as some boxes
as mentioned in past point i have purchased some boxes to sell the arduino unos, mechanical relays, and max31855 3.3v version op amps that i am not going to use. i am going to post them on ebay and amazon if you guys are looking for some arduino unos and other electronics i might put them on my store for a killer deal let me know.
On another note for those that have issues with parts being broken i reached out to those that have reported issues (if I have not please let me know) please get back to me about what is exactly broken asap and i will work twords replacing all that is broken. also for other people that have gotten units that were not critically damage have you guys put them together? do you need any other information to put them together other than on my youtube which you can find here https://www.youtube.com/channel/UCr-qLNzQib4fZ92AzqlIusA . please keep me in the loop of anything else you need while i push forward in making the next set of orders, keep developing the extruder, and develop the expansion modules.
i will try to get a new version of the MOS system every week (probably released on weekend on github). However i need to get mikes machine out and i will have to build the rest of a unfinished machine i have sitting in the garage. so be looking out for more stable versions of the MOS coming out weekly to improve the quality of MOS extrusion and user experience. Thanks again for backers for your patience and i am again sorry for the broken machines.
mike i will be contacting you shortly.
check out pictures bellow. and i will post that packing material that i get tomorrow.
First batch has been shipped out the only one needing to be shipped is mikes.
There have been reports of critical damage to 3 out of 12 units. People that have critical damage to there unit I will be getting to you shortly to replace what is broken.
There are also some people that have reported some chipping of the paint. please let me know the severity of the issue and I will see what I can to fix it. However everyone please be very careful with the paint as it scratches easily. eventually I want the units to be powder coated with pla colored in the Multistruder.
I will be back home Thursday to continue work on the project. I'm going to start working on the next batch and working on reinforcing the flat rate shipping box. and finding suitable padding that will keep the contents as safe as possible from the stuff moving around the inside and protecting the box from the outside.
While on vacation in Oregon I had the opportunity to meet up with some of the great guys at proto plant in Vancouver Washington. The makers of the Proto-Pasta brand. We spent some time shooting the shit talking about filament making and diy filament extruders.
I brought back some important wisdom from the meeting. the number 1 thing being to DRY YOUR STOCK BEFORE EXTRUDING. I had a issue of the filament that was made being very brittle and not able to flex without breaking. This was because of the high content of moisture of .21% (should be .030%) and this moisture was found in a Ziploc pellet bag that I never even opened. and 2 being that the longer you have the plastic heated before extrusion the more brittle the plastic becomes.
They had a similar setup to what I envisioned for the multistruder. except their setup is a lot longer run out to allow the filament to cool before getting to the sizing drums for a 1 1/2 foot per second extrusion rate (90 feet per minute 30 times the extrusion rate of the multistruder). They used drums with force sensor to size the filament and drums to pull the filament to size and spoolers that keep up with the pulling drums.
assembly, electrical , and extrusion tips and tricks videos are posted on my youtube channel. The Green Engineers Youtube
bellow you can check out some picture of stuff thought the week
Multistruder kickstarter Early Bird Batch Shipped 6/30/2016. 12 units have been dropped off today at 3:30 at USPS and should be arriving at most locations 7/2/2016 and some at 7/3/2016. Any questions you have now or when your receive your shipment please contact me.
the 13th unit (unit number 1 also the unit you have seen in the extrusion tips video) it requires some more work but will be shipped at the start of next week either Tuesday or Wednesday. Sorry Mike Langford but your unit will be loaded with the the newest updated software that i develop over the weekend while i am on vacation in Oregon. if you have any questions Mike please get contact me.
For people that are on the next batch 2 the survey will be out to you guys pretty soon and as of now i am working on batch number 2.
Again thank you backers for your patience. extrusion tips video is on my youtube and assembly video is coming soon.
i currently have 10 units in boxes waiting for labels. just 3 more units left. box are shceduled for late thursday pickup.
All early bird backers check your address to make sure it is up to date.
boxes come in at about 16 pounds
Going to be making a assembly video aswell as extrusion tips for the standard die (because no one asked for aggressive die) tommarow.
i have found that the analog thermocouples are not very exact out of the box so they are going to need to be calibrated. thus next week i plan on making adjustments in the code to allow for the calibration. calibration will probably be handled using ice water.
also please subscribe to my youtube channel for more videos thanks.
any pictures will be posted bellow.