TechShop is still closed. They failed one of their inspections so the re-open date has been pushed back to 4/5/2017 instead of 4/1/2017
I have signed up for the cnc plasma class. issue is that the closest class i was able to sign up for is 4/28/2017
I have been calling in for every class from now to 4/28/2017 if a seat come available that i could fill in between now and then.
When TechShop San Jose reopens i will be moving forward with the template for the A36 shredders to be able to mill out. even though that process will take like 6-7 hours to make 1 shredder
In the mean time i have been looking to buy some heavy duty flange bearings so i can adapt my model to accommodate them.
Then buy the square drive shafts for machining. Or source hexagon shafts
Techshop San Jose is now closed for move to the new twice as large location
I was preparing to machine a template for machining the 4" x 12" inch A36 plates. However something new came up
Tech Shop Mid Peninsula in Redwood City just got the permits for their cnc plasma cutter to be used again
This is a great development. This will decrease the time for cutting the shredder by about 11 times. which drastically increases my speed for production
However one thing that I will have to deal with is the quality of cut. the quality of cut is not going to be as good as a water jet or the mill. As technically the plasma cnc cutter is the worst quality of cut all cnc machines. as plasma cnc machines are built for speed not quality of cut.
The plasma cnc machine will leave dross. and more taper than the other cnc machines. so I'm predicting a lot more cleanup than the mill.
qThe Bad is that the class to learn the machine is full until the 20th of next month. I am working to getting into a class or checked off on the machine asap.
So I will be just buying the 1045 steel 4' x 8' x .25" plate (does 8.5 shredders). and start cutting. if everything checks out we are ready to rock and roll
Again thanks for your guys patience. it is coming
check out pictures bellow for some pictures of example cuts from the cnc plasma cutter.
1st. Techshop has pushed back there close date AGAIN from March 2nd to March 23rd.
this has 2 effects. 1 positive 1 negative
Got more time to work on setup on cam.
However, the negative is that i will not have access to the water jet till the 23rd plus 10 days for them to close and move everything.
After pricing out the steel i have found out that buying the pre cut plates of steel is extremely expensive
The best option is to buy 4' x 10' giant sheets and cutting out the plates from the sheets on the water jet. that is what i am going to be using in production. and also it is cheaper for prototype
Im still contemplating taking some A36 out of my garage and welding the smaller plates into bigger plate and grind the welds flat
however i dont think that that will make a very good functional prototype. Im still probably going to do so because i need to get rid of that 1/4 inch steel
Now i have a chance to make the template or jig out of plastic so i can instantly home every sheet i put in in order to swap them out quickly. As each machine takes 3.5 sheets
I have gotten an estimate for machine time. It came in at 5.5 hours minimum per shredder. my estimate was 2.5 hours. so the price of the shredder if not pre-ordered before first prototype will see a more drastic price increase than originally expected.
so in the mean time shopbot out the jig and check the fit on the tormach. and double check the cad file and save the cam for the tormach. and maybe try some A36
I have taken all the preq steps to get me to the place when i am ready to machine a prototype
I have sat in on the classes i need for the Tormach at tech shop and my current (temporary) cam software VCarvePro 8.5
I currently have the prototype shredder nested out in VCarvePro 8.5. ready for 2D routing cam
i need to call up my supplier to get some A36 in a 10.5" x 19" x 1/4" plates. and maybe my first 1045 steel 10.5" x 19" x 1/4" plate for first shredder
I found out that i will need 3.5 plates of 9.5" x 18" x 1/4" plates per shredder and my estimated time is to be about 130 minutes minimum for machining not including changing plates
Because i will find extra expenses in the manufacturing after i manufacture my first prototype i will realize some of these extra expenses and i will increase sale price to reflect that
Also when i begin manufacturing the 3 shredders i will also discover the manufacturing the final production of machining and those expenses will also reflect that.
So if you have not yet purchased a shredder yet now is the time to do it as this will be the cheapest you will ever find it. after these other 2 points price will increase in according to increase in costs and plugging it into a equation i made so increase cost will not be known tell it is calculated.
stay tuned as next update will probably be pictures from the prototype machining process.
Techshop has pushed back their hard close date twice since last update.
the new hard close date is now March 2nd
Techshop is now only going to close for one week in after march 2nd
that being said I have begun to continue forward on the metal prototype.
I have setup a vcarve 8.5 pro file at tech shop that has been setup for the max travel for the tormach
now I just need to generate the routing toolpath for the tormach.
and I have to take the tormach class to get associated with the machine
then machine a prototype. make improvements from prototype then we are good to go into production.
I am back to school now and will talk to my instructor about possible housing of a kiln to heat treat the shredder and then price that out.
then I will begin work on the funnel/shroud and motor attachment.
I checked the static stress of the shredder dials. I changed a few things and I have found that my original design is yielding the best performance. So I will not need to modify my original design.
Because I am going to be going with my original design I will not be able to get the shredder to withstand any additional stress without hardening.
MAIN POINT!!!!: TechShop informed me a few days ago that they lost their lease extension. The lease extension was going to allow them to not shut down the shop and slowly move all the machinery to the new location. If you need to use the equipment at new location you go to new location, if the equipment is at the current location use that equipment. However now that it is lost they need to do a hard close and move everything. So they are hard closing at the end of the month 1/26/2017. Also they will need to stay closed for an entire MONTH in order to finish construction on new location to be up to code and to finish moving all the equipment to the new location. so I will not be able to do production on the project tell around 2/26/2017. But the new location is going to be nice with a lot of storage so I should be able to get storage on site. They are also going to be putting together a 2nd Tormach.
Thanks for your interest everyone that came from kickstarter or a forum
The Reclaimer is currently on sale on this websites store http://www.thegreenengineers.com/store/
the starting price is $125 dollars because i was able to drop the price. i was able to drop the price because now i am milling out the shredders instead of water jetting (very expensive)
The basic unit is now equipped with 1045 steel instead of A36. This was a stretch goal but now comes included as the base model. this is because of decrease of price for steel with my new supplier so I will just include it now without extra cost
This is also a base for a lot of expansions one of which is the shroud. another is a motor, and finally a stand. The motor will need to be installed on the shroud to function so the motor will not be able to function without the shroud (for liability issues).
Where do we go from here
I now begin to optimize the blade shapes so you can cut the most hardest material possible without hardening.
I will also generate the CAM using Fusion 360 CAM for a Tormach
order the 1045 steel plates and buy the flange bearing
Production should start February and ship out late February
After shipping in February work on shroud, motor, and stand.
The $125 dollar for base unit and price increase when I start building in February and increase again after shipment in late February. so now is the best time to pick one up.
Stay in the loop by checking back into this blog often.