Archive for PRINTER 3D

AFTER SPENDING OVER HALF A MILLION DOLLARS, COLLEGE FINDS 3D CONCRETE PRINTERS NOT READY FOR USE IN YAVAPAI COMMUNITY COLLEGE’S HOUSING PROGRAM

The College has pivoted toward manufactured homes, travel trailers and the purchase of a 41 acre church camp in its quest to provide low cost housing assistance for faculty, staff, and students

Recall the decision made over three years ago, January 27, 2020, when the District Governing Board approved the Community College executives investing around a half a million dollars in two 3D concrete home printers. At the time, the printers were touted by Community College executives as capable of constructing the foundation, interior, and exterior walls of a medium-sized home within three to five days. For example, in its  press release of January 27, 2020, the Community College said in part:

“This new process would enhance several trades and early estimates suggest the printers can have the foundation, interior, and exterior walls completed for a medium-sized home in 3-5 days. After roofing, electrical, plumbing, and other services are installed, it is estimated that these 3D printed homes will help alleviate Yavapai County’s attainable housing shortage.”  . . .

“We believe this can be a part of the solution to our long-standing attainable housing crisis in Yavapai County,” said Dr. Lisa Rhine, Yavapai College President. “The emerging opportunities that 3D printing provides are quite remarkable and we want to bring this innovative technology to help our communities in need.” . . .

Subsequently, the College acquired the 3D printers. However, they proved unsuitable for their intended purpose, as later openly acknowledged by Yavapai Community College executives. Consequently, they were essentially discarded, prompting the Community College staff to embark on a challenging and time-consuming journey to develop and construct their own 3D printers. (Cost estimates unknown.)

In January 2022, the first class on how to use these machines was announced.  However, despite the enormous time-consuming staff effort and large expenditure of funds, the total enrollment in the class since 2022  is reportedly as of the last semester very small.

Now, County residents have learned from the presentation to the District Governing Board at its April 21, 2024 meeting that the current 3D printers are not equipped to print homes to meet the needs of the Community College staff and students. Apparently, it has become clear they cannot print the type of concrete homes it was anticipated they could back in 2020.  Nor can they be printed in 3-5 days.

The College is now turning to alternative housing such as the recent purchase of a 41 acre church camp. It is also beginning to purchase travel trailers and prefabricated homes.

Surprisingly, despite the significant previous investment and failures, it is believed that College administrators may have been quietly considering proposing to the Governing Board a purchase of a new 3D printer or printers  with a potential additional investment of $600 thousand. Fortunately, such an expenditure is not included in the proposed 2024-25 academic year budget.

The College’s arduous journey with 3D concrete home printing technology underscores the importance of careful pre-planning and skeptical evaluation of major investments by the executives in charge of higher education at the Community College, especially when it comes to emerging technologies. It also serves as a valuable lesson to the District Governing Board when considering approving similar ventures and expenditures. 

Click here to go to the video clip of Dr. Clint Ewell explaining the status of the College’s 3D printer project to the Governing Board at the April meeting.

YAVAPAI COMMUNITY COLLEGE CONSIDERING INVESTING ABOUT A HALF MILLION IN PURCHASE OF NEW 3D CONCRETE HOUSING PRINTER DESPITE SPENDING OVER $400,000 IN 2020 ON PURCHASE OF TWO 3D HOUSING PRINTERS THAT IT HAD TO ESSENTIALLY SCRAP

If approved by the Governing Board, the result is a total investment of a million dollars or more in a program that has provided training for only a handful of students; Governing Board appears ill equipped to protect County taxpayers against what appears to be an apparent misapplication of funds

The Yavapai Community College Administration has informed the District Governing Board that it is considering purchasing an additional 3D concrete housing printer, estimated to cost $550,000. (Refer to the video clip below for more details.) If approved, this acquisition would increase the total expenditure on 3D printers by the Community College to approximately one million dollars since 2020.

Recall that on January 27, 2020, the District Governing Board did not oppose a proposal from the College executives to spend nearly half a million dollars on two 3D concrete printers. The information provided to the Board at that time indicated that these printers could construct the foundation, interior, and exterior walls of a medium-sized home within 3-5 days.

However, these two printers proved unsuitable for the intended purpose, as acknowledged by the College executives. Consequently, they were discarded, and the College staff initiated a challenging, time-consuming program to develop and construct the College’s own 3D printers. To the astonishment of careful observers of the College budget, the College Administrators are contemplating asking the Board to approve the purchase of a new 3D printer,  despite the substantial previous investment and obvious failures.

It should also be a concern of County taxpayers that so far only a few students have enrolled in courses related to the 3D printing project. Moreover, the initial plan to recoup some of the considerable expenditure by developing and patenting a special cement mixture failed to materialize.

The District Governing Board, responsible for ensuring the prudent use of taxpayer money, seems unable to grasp the problematic history of this project or justify the expenditure of hundreds of thousands of dollars to train so few students. One wonders what it will take to wake this sleepy board up to its statutory responsibility in matters like this.

AFTER PURCHASING HALF MILLION DOLLAR 3D CONCRETE PRINTERS IN 2020, COLLEGE UNEXPECTEDLY FOUND ITSELF FACING HUGE RESEARCH PROJECT CONSUMING VAST AMOUNTS OF CTEC FACULTY TIME AND NEED TO BUILD AND REPLACE PURCHASED PRINTERS WITH BETTER ONES

After three years, building two additional printers, incurring continual  major highly technical and practical issues, College still hasn’t met goal of building one small facility with its four machines

Yavapai Community College’s CTEC faculty has faced apparently unforeseeable and massive technical and practical challenges after the College and its Governing Board  was convinced by someone to  purchase two 3D cement printers three years ago, January 2020. The price tag on the two 3D printers was a half million dollars.  

Enormous amounts of CTEC faculty time and energy plus expenditures of an unannounced amount of revenue have been spent on trying to turn the project around and solve technical and practical problems — in addition to building two new printers while sidelining the original purchases.

These revelations were shared by CTEC Dean John Morgan during the District Governing Board meeting held February 21, 2023. Morgan explained to the Board that after realizing the first two machines it purchased were not suitable for the College’s intended use, it proceeded to construct two more machines that it felt would meet its  purpose. And began the long road to solve the technical issues associated with using them.

According to Morgan, after the 2020 purchase, the Community College faced a variety of  challenges including a need to build its own machines, a cement mix shortage and many extraordinarily difficult  technical issues.

One can get gain a glimpse into the time and effort dedicated to the project when the Community College recently recognized Matt Mintzmeyer, Director of Aerospace Science/3D Printing and Manufacturing, for his tireless work on its behalf.

The College in recognizing Mintzmeyer said, in part:

He has spent 100’s of hours outside of the workday getting the machines to function properly, while also battling COVID. Without this commitment, we would not be able to move forward with 3D house printing due to the complexity of the operation.

Director Mintzmeyer has been successful at putting together a good team to keep going with the ongoing learning curve involved in 3D house printing. His easy going and “can do” attitude have been very noticeable. He has communicated well with the 3D team, and has them coming in to run test prints on a regular basis. As we inch closer to building a house, those skills will continue to be needed, and he will have to keep that team motivated in his role as Director.

Matt has spent many a late night working on improvements to the 3D printing lab at CTEC, as well as mastering the 3D house printing machine as part of the construction program. He has reached out to industry concerning directions we need to go in 3D printing, and has gleaned some good ideas that he has helped incorporate into the classroom. At a time when frustrations have been high, Matt has continued to work through problems pertaining to 3D house printing.

It can be noted that the College has refused a request from the Blog to provide estimates of the cost of building the two new machines or the amount of any grants that were used to construct any of the additional equipment or pay for all the unanticipated staff time needed to try and save the project.

Below is a copy of the decision by the Governing Board made at a hurriedly called Executive session to alter the 2019-2020 budget so the half million could be spent on the two 3D printers. The College still has them but they have been sidelined in favor of the two the College built on its own.

 

Here is a photo shown to the Governing Board of the original two 3D printers purchased for a half million. Dean Morgan said the manufacturer stood by its warranties on the machines. Although able to function, they are apparently serving no purpose at the present time.

Here is a photo of the two 3D printers that the College built at its own cost after it concluded the two it had purchased were not adequate to perform the tasks it thought they could.