November 8th Update: Shipment under way & lots of projects!

Hi Everyone!

I hope you are having a great week. I know the last few newsletters have been pretty text heavy. This week we’ve got some more pictures for you, and some cool projects from the community.

Kits are more than half sent out!

It’s been a big week for us. As we mentioned in the mini update on Wednesdaywe got the motors we’ve been waiting for and we’re shipping kits as fast as we can. Hannah has been working from Exceed (the non-profit helping us to pack the boxes quickly) to make sure that any issues that come up as they pack the kits can be solved immediately.

Since Wednesday we’ve packed and shipped more than half of all of the kits and we’re hoping to have all of the kits shipped by by next week.

200+ kits sitting in the Exceed loading dock waiting to get picked up

200+ kits sitting in the Exceed loading dock waiting to get picked up

Sean packing boxes and Trevor wrapping the metal brackets

Sean packing boxes and Trevor wrapping the metal brackets

To keep things moving we’ve been setting aside the kits which are destined for places which are difficult to ship packages to (like parts of Africa and Asia) until after all of the other kits have shipped. If we are having trouble finding a shipping company which can deliver to your region we may contact you about what usually works best in your area.

We know some of your kits are already arriving and all of you are excited to start putting them together. Hang in there, we’re shipping as fast as we can!

Testing the new ring system

On the machine development front this week I am testing a new ring chain attachment system.

We’ve talked in past newsletters about the advantages of having the chains virtually meet at the router bit. In short, if the chains make a triangle with the router bit at the center the math which relates the lengths of the chains to the router’s position is much simpler, the calibration process is easier, and the machine is more accurate.

There are a couple of fantastic linkage kits created by the community for sale in the forums, but I would still like to make a ring type kit available.

The design I am working on consists of a laser cut metal ring mounted to three of the same bracket used for the z-axis (although probably beefed up a little).

The prototype of the new ring system. Please ignore the ugly free-hand plasma cut on the outside...it’s a prototype

The prototype of the new ring system. Please ignore the ugly free-hand plasma cut on the outside...it’s a prototype

Each chain attaches to a carriage with two rollers running on the inside of the ring. I’ve only just begun testing this system, but so far it seems fantastic. The z-axis brackets make it easy to adjust the vertical position of the ring and the brackets screw to the surface of the wood so no holes in the sled are needed for mounting.

I was a little stymied at first about how to mount the router in the center of the ring, but community in the forums came up with the idea of a paper template with concentric circles which I think is an excellent one.

So far in testing the ring system seems to be very easy to calibrate and dramatically improves the accuracy of Maslow especially near the edges of the sheet.

The only issue has been that at the far left and right side of the sheet the rollers hit the mounting bracket in the middle. The next version of the ring will address this issue by moving the top mounting point to the outside of the ring giving us increased travel.

Version two of the ring design

Version two of the ring design

As a first test run I squeezed two Roxanne chairs from OpenDesk onto a sheet of ¾ plywood we had left over from the POD project. I was very impressed with the accuracy, especially right at the very top of the sheet where the ring system really shines.

The Roxanne Chair from Open Desk

The Roxanne Chair from Open Desk

Here is a quick video about the process:

Script:

Hey Everyone,

Now that Hannah and the team at Exceed are filling boxes I’ve been able to focus on pushing the design of Maslow forwards again. One thing that we’ve talked about in previous updates is the value of having the chains “meet” at the router bit. There are a couple of kits available which achieve this effect using a system of linkages. I have been exploring a system where the chains attach to carriages which run on a circular track.

The track is mounted with three of the same brackets used for the z-axis so no holes need to be drilled or countersunk in the sled and the height is easily adjustable.

{Photo of new system in video}

To test it out I cut two Roxanne chairs from Open Desk (download free plans here). I pushed how close I could go to the edges of the board as a way to test the calibration and I was very very impressed with the results. All of the parts fit together snugly. Especially near the top the the performance is significantly improved because the chains are able to rotate to the sides reducing the stress on the machine.

{timelapse}

One issue I ran into while testing this ring is that when the sled is at the extreme left or right of the work area one of the carriages will run into the top most support. I have redesigned it to move that support to the outside for the next version.

{photo of chairs}

The chairs themselves came out well. I think the Roxanne chair design is not quite as pretty as the Slim Chair I made before but they feel much more sturdy. I’m going to make a Cafe Table to go along with these as soon as I can so stay tuned for that.


Projects

We used to do roundup of cool projects from the community at the end of every newsletter, but in the last month or so we’ve stopped doing that to focus on getting batch two out the door. I am going to bring the project round up back because I love seeing what you all build and it’s a great way to get inspired.

This week we’ve got a bunch of great ones.

I’ll start off with one of my all time favorite forum project posts. If you would like to read the whole story directly, you can find it here(https://forums.maslowcnc.com/t/halloween-project-help/748) The short version is that community member GMS10 posted asking if anyone would be willing to help him with the CAD drawings to make his kids red wagon into a fighter jet for halloween. In a matter of hours community member Jakrro knocked it out of the park by coming up with a beautiful CAD drawing which he posted to the forums.

Fighter jet red wagon design by community member Jakrro

Fighter jet red wagon design by community member Jakrro


GMS10 took those drawings and did a phenomenal job making a real life mini red wagon fighter plane which became part of the most adorable family halloween costume. Great work guys! That kind of teamwork, sharing of ideas, and collaboration is what Maslow is all about!

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Community member Clintloggins built a complete Eddie Set of a table and three stools from Open Desk this week. I’m particularly excited to see his build because I am going to take on the similar Cafe Table to go with the chairs I just made.  You can find the files to build your own set here: https://www.opendesk.cc/edie/edie-set .

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Community member Backpocket has been making some very cool things as well which I came across this week when I discovered that the #maslowcnc exists on instagram.

First he made this sub-wing which is a glider meant to facilitate underwater acrobatics when towed behind a boat. Search “sub-wing” on YouTube for some very cool examples.

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Here is a video of him using it in action:

https://www.instagram.com/p/BVcxqsegc2i/?taken-by=backpocket

He also put together these very cool lamps back lit with el wire which were cut from some sort of corrugated plastic.

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A huge thanks to everyone who agreed to let me share a project they built this week. It is so fun and inspiring to see what people make. When you make something cool don’t forget to post pictures in the forums!

Have a great week everyone!

-Bar and Hannah