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Steven Mosbrucker

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Steven Mosbrucker last won the day on February 25

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About Steven Mosbrucker

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  • Birthday 10/01/1993

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  1. Steven Mosbrucker

    Latest ETA ?

    Here is a brief story of the project: Started the project because the local makerspace had a $250,000. first time i made the product it looked good but was expensive to produce ($440). The whole idea of the project was to reduce the cost of sheet steel manufactured products in low quantities down to the 125$. i was charging you guys cost. Everywhere else this size shredders are going for 600 minimum. i then proceded to get the price of that waterjet down as it was 3$ a minute. I was never able to maintain usable quality down to $125. Then i went to another local makerspace with a cnc plasma. Price was right but quality and finish was unusable. went through $300 sheet trying to get it in spec. I then looked to china. I could not get it below $330. shipping was a problem as it was costing like $125 to ship. Looked locally couldnt find anything under $330. unless there was massive quantity 100+ Next i went to my university to see if i could get it involved. had a full shredder made that still cost an estimated $300. on a $100,000. The finish was way better because it was a newer machine compared to one at makerspace. Makerspace went out of business and there was no makerspace in my area for a year. New makerspace was promising to have a Fiber Laser from Pirahna. Which i thought was to be a perfect mix between quality and cost. They never did get it. Current idea is to make a custom efficient waterjet. Pump so far has cost $1000. and i can probably put the rest together for $500-$750 more. Not sure if it will be efficient enough to get manufacturing cost down to $125. But the shop would pay for air it uses so I should be able to hit that price. However, that is many months of testing and assembling and tuning. Right now having my job to keep money in and running a team for the senior project and finishing up my last classes before i graduate by the end of may. I think most of this development will have to wait or be very slow before graduating. So here is what i learned from this project. the $125 manufacturing price tag is nearly impossible to make in the states (because of inflated wages). It is nearly imposible to make in china for this price because of the shipment back cost. There is one way to meet that price Order kickstarter style. Order a couple hundred at a time from local or Chinese source. This sure will be able to hit the $125 dollar mark but that is about 15k upfront and not sure if the market even is there to sell 15+k worth of these small shredders Currently, shredders like these are selling for $600. I personally don't think that they are worth this price. This is the reason why I started this project was to drop the price down of these types of machines. As me personally i don't think this shredder is worth $300+ for its size.
  2. Steven Mosbrucker

    Latest ETA ?

    did a video on it check it out
  3. Steven Mosbrucker

    Latest ETA ?

    it depends if this punch works correctly or not and how many punches the punch can do before dulling.
  4. Steven Mosbrucker

    Latest ETA ?

    So basicly what is going to happen is that i have a box of parts that need the quare hole chased. i have cut out 8 machines worth of parts but the taper is out of tolerance to assemble. What i have decided on doing is using a modified broach for a press to chase the hole square that will turn these unusable machines into usable ones. these are going to be the ones that are sent to you guys. after this this is when the waterjet will be manufactured and that is what will be used after all 8 have been sold. now at the new shop we have a pottery kiln that will be used to heat treat.
  5. Steven Mosbrucker


    Were we are currently. 1 of the preorders wants to pay the difference for a external company to cut the shredder. then for me to assemble it and ship it. so i am going to offet it to you guys asweel. currently looking at $420. so subtract whatever you alread paid and that would be what you would pay to get it within the next few weeks. i will be doing a video of me running the machine soon. also a video of his shredder before i send it out. check out his update video to my youtube.
  6. I am now posting major 11 minute updates on youtube now. please go there to find updates. here is a example check out bellow. a lot more coming soon which is the winder.
  7. Steven Mosbrucker

    Latest ETA ?

    sent you a email. comes out to around 370 to have someone else cut it.
  8. Steven Mosbrucker

    Latest ETA ?

    Ok i will send out a email to this waterjet service i talked to and i will see how much it is going to run me. or i will even check out this online service thing i found. let me look into it.
  9. Steven Mosbrucker

    Latest ETA ?

    I put together the protytpe a few days ago. The prototype works and everything works i just dont have a machine to cut it that i have access to. paying to have it cut would cost 250 bucks a shredder. the new tech shop that i am going to have access to is supposed to have a fiber laser that can cut the steel. but they are 3 months behind schedule of opening. they were supposed to open in may. I am sort of stuck. either the shop opens to cut it or i have to build my own diy water jet. i am going to be posting a youtube video of the prototype and the status of what is going on. i will post a picture down below of the prototype.
  10. Steven Mosbrucker

    Update: 5/22/18 SUMMER!!!

    Today i finished my last final. This marks the first day of summer. Plans for summer. Finish the Mulistruder kickstarter Finish ECOBase design and start kickstarter and start manufacturing. Start production on the Reclaimer shredder Do design for FilaFactory version 2 of filament maker Other things happen in summer TheShop.Build is supposed to open in June 1st Buy a laser cutter for home Possible Summer Class Probably not working much. Start teaching at TheShop.Build
  11. Steven Mosbrucker

    Latest ETA ?

    Ok so this is the inside scoop on the situation which is changing very rapidly. SF was my originally going to be my go to for cutting out the shredders. However something else has come up. San Jose is going full steam ahead. Supposibly the new 58,000 SF shop is going operational "Early May" In this new shop to manufacture the shredder we have 3 options, cnc plasma cutter, waterjet, and the newest best option a Fiber Laser that can cut up to 1/2" steel. Fiber Laser is how Dave Hakkens manufactures his shredders and other people on his form and in his buisness Precious plastic It is the precision of water jet but the cost of operation of a cnc plamsa. In the mean time i am getting ready to have the shredder prototype ready for maker faire. Today at the school shop i am going to be pressing the 4 bearings into the housing. Then having central shop water jet cut the rest of the parts needed to build a final assembly. then i am going to get into contact with the new GM of TheShop.Build san jose to figure out if indeed what i heard at the open house of san jose facility is correct and the fiber laser has the correct wattage and wavelength to cut atleast 1/4" steel. If that is the case manufacturing is to begin in summer.
  12. Steven Mosbrucker

    Update: 4/17/18

  13. Steven Mosbrucker

    Update: 4/17/18

    I am going to be posting some updates on my youtube. here is my update video
  14. Steven Mosbrucker

    Update: 3/7/2018

    work at school and the machine shop has been kicking my ass. I am dropping hours at work to give me more time twords my green engineers projects mainly this project. So these past 2 weeks i have been dealing with midterms but now i am in the clear for a month. i have got 90% of the spooler module printed (in various colors). Which includes the winder. drive and driven cones, and just printed the bar to attach the pulley. The last parts to go onto the spooler module are the pulley and the adapter to be able to mount and adjust when installing on the stand of the multistruder I will now be coming up with daily plans for the weekend on what is to be accomplished each day. I will write down on my day white board the next 3 weekends and extra 1 day of what will be accomplished each day. An idea of that is i need to finish the spooler. Then start working on the dimensional control module (first finding where my prototype is). Then assembling. then working on beta of code then final installment of the code Maker faire Individual assembly testing and ship repeat i will post this shcedule bellow and also the pictures of the machine and its parts that are on my desk. Check pictures bellow.
  15. Steven Mosbrucker

    Update: 3/7/2018

    Dropping off steel today at my classroom shop for building plasma. I got the arduino uno powered grbl controller 4 axis x,y,z,a. with 2.5 amp stepper drivers. Going to be talking to my boss at the machine shop tommarow about machining the shredder on the Excel 10T-24. I will attach a picture bellow He does want me to start doing some setup work which currently i am only running production. So when i get more comfortable with the setup it should be pretty easy to run the shredder especially with a tool changer. Current idea for "recipe" for shredder on 10T-24: Fasten plate (2'x2') to sacrificial board using industrial strength double back tape. Use 1/4" roughing endmill to route out the profile of the blades and pocket out the center square. Pocket out inner square with 1/4" roughing endmill Leave about .020" - .025" (onion skin) for "low force" last pass on profile. Finish the "low force" pass to remove profile from rest of plate. Tool Chaned andCome back with a 1/8" end mill for finishing and get rid of extreme radius from 1/4" Add 2nd fixture with the plate (2'x2') already attached. Run This plate with steps 1-3 While next set is being made run remove plate and add new plate and tape to first fixture plate. Repeat. Estimated runtime on the 10T-24 is about 1:15-1:30 Working on the last few dials to be filed in order to assemble the shredder. Been busy with midterms and work. Then work on trying to heat treat the extra dials and note distortion. Photos Bellow.