Search found 198 matches

by msimpson
Wed May 06, 2020 9:46 pm
Forum: General CNC
Topic: What Machine is This
Replies: 1
Views: 404

Re: What Machine is This

That is a KRMx02. The table has been modified to be removable and underneath is plasma cutting slats. I have upgraded to a quick change z plate.
by msimpson
Wed Apr 29, 2020 8:21 pm
Forum: General CNC
Topic: Looking at adding a 5.5W LED laser to the CNC
Replies: 10
Views: 1168

Re: Looking at adding a 5.5W LED laser to the CNC

So it looks like the laser I will be testing is the Opt Laser 6W model. I will let you know when I have more specifics.
by msimpson
Wed Apr 29, 2020 8:03 pm
Forum: General CNC
Topic: CNC Plant Hanger Project
Replies: 3
Views: 447

Re: CNC Plant Hanger Project

Thanks Michael
by msimpson
Mon Apr 27, 2020 5:59 pm
Forum: General CNC
Topic: CNC Plant Hanger Project
Replies: 3
Views: 447

CNC Plant Hanger Project

I just finished a CNC project where I made 10 hanging pot holders for my front porch. I made them strictly from scraps I had on hand as well as hardware I could scrounge up. _MG_8224.jpg You can see the writeup here: http://www.kronosrobotics.com/planterhanger Please feel free to share the link to t...
by msimpson
Sun Apr 26, 2020 10:34 am
Forum: General CNC
Topic: Looking at adding a 5.5W LED laser to the CNC
Replies: 10
Views: 1168

Re: Looking at adding a 5.5W LED laser to the CNC

There are some challenges when laser cutting and laser engraving. Many of the cutting challenges are the same as those encountered when plasma cutting. The main obstacle is latency. It the time it takes the laser to respond when given a command to change state or power. I have done a great deal of l...
by msimpson
Sun Apr 26, 2020 10:25 am
Forum: General CNC
Topic: Looking at adding a 5.5W LED laser to the CNC
Replies: 10
Views: 1168

Re: Looking at adding a 5.5W LED laser to the CNC

Thats a nice one. You get what you pay for. They are out of country though so could be hard getting the unit now.

Let us know how it works out. I did send out an email to that company asking if the could send me a unit for testing.
by msimpson
Mon Apr 20, 2020 9:35 pm
Forum: General CNC
Topic: Looking at adding a 5.5W LED laser to the CNC
Replies: 10
Views: 1168

Re: Looking at adding a 5.5W LED laser to the CNC

I don't think getting anything from China right now is very practical. They will let you order things, but they just dont make it here. I seriously doubt they are even shipping. I have had several orders just sit until Amazon lets me cancel. Problem is that ties up funds for almost a month until I c...
by msimpson
Sat Apr 18, 2020 11:38 pm
Forum: General CNC
Topic: Isolation Routing
Replies: 11
Views: 3830

Re: Isolation Routing

As far as feed rate, for the small bits I would not be going faster than 15 IPM. Practice on a scrap board. Looking at the video, I would guess about 10IPM. As far as tinning the board, I never did. There is probably a way to do it, but I always liked the raw copper patina. The most problematic area...
by msimpson
Fri Apr 03, 2020 10:23 pm
Forum: General CNC
Topic: Looking at adding a 5.5W LED laser to the CNC
Replies: 10
Views: 1168

Re: Looking at adding a 5.5W LED laser to the CNC

I have owned an Epilog laser for about 10 years, and used it for years. Would I recommend an Epilog laser to someone else? NO. In the current sachem of things they are over priced. I think I have about $19,000 in mine including things like rotary, extra honeycomb table, Gast blower, and air ventilat...
by msimpson
Thu Apr 02, 2020 10:24 pm
Forum: General CNC
Topic: Looking at adding a 5.5W LED laser to the CNC
Replies: 10
Views: 1168

Re: Looking at adding a 5.5W LED laser to the CNC

CO2 lasers require almost as much infrastructure as the CNC plasma. You need a downdraft air evacuation system if you are going to do any serious cutting or engraving. You also need an air assist to keep things from catching on fire as well as a bunch of other safety features. After starting much re...
by msimpson
Tue Mar 31, 2020 10:46 pm
Forum: General CNC
Topic: Looking at adding a 5.5W LED laser to the CNC
Replies: 10
Views: 1168

Looking at adding a 5.5W LED laser to the CNC

I am starting to look at adding a low power laser to the KRMx02 or CNCCS. I want to have both a pen holder and the laser connected to the QuickChange Z plate. The pen will be placed into position with a a solenoid or servo when it needs to write. I want to make a template maker. IE the pen will plac...
by msimpson
Fri Mar 20, 2020 5:00 pm
Forum: General
Topic: replacing router with spindle
Replies: 1
Views: 1402

Re: replacing router with spindle

The VFD is your main choice, and I have only used the ones shown in these articles. https://www.kronosrobotics.com/spindle-introduction I own several of the genuine Huanyang (Type 1) VFDs and prefer them. They are fairly simple to setup, and I have yet to have one fail on me. I have both 110V input ...
by msimpson
Thu Nov 28, 2019 12:28 am
Forum: General CNC
Topic: Drag Knife Section
Replies: 2
Views: 1570

Re: Drag Knife Section

The box knife is a little more difficult to get things correct because of the large offset. I recommend starting with the smaller roland knife. I'm just finishing up a couple new tool holders one for the roland style and the other for the box knife. I will be mounting each on its own Quick Change Z ...
by msimpson
Tue Nov 26, 2019 5:23 pm
Forum: General CNC
Topic: Drag Knife Section
Replies: 2
Views: 1570

Drag Knife Section

I started a new area on the web site where I show how I setup and use a series of drag knives.
https://www.kronosrobotics.com/using-a-dragknife
by msimpson
Wed Nov 06, 2019 10:03 pm
Forum: General CNC
Topic: VFD Notes
Replies: 0
Views: 2470

VFD Notes

I thought I would post all the notes I have on my Huanyang VFD. Please note that these notes apply to the Type 1 (genuine) VFD. Please understand that these notes as well as my VFD introduction listed here: https://www.kronosrobotics.com/spindle-introduction Is what I used to get my VFDs up and runn...
by msimpson
Mon Nov 04, 2019 10:01 pm
Forum: General CNC
Topic: CNC Rotary Plasma Experiments
Replies: 3
Views: 1026

Re: CNC Rotary Plasma Experiments

Yep that is what I did. All CNC machines can do that. I did have to change some settings in mach3 to get the travel to match the circumference I needed to cut. Then all you have to do is layout what you want to carve in a rectangle that matches where you want to cut. There are several ways to do thi...
by msimpson
Fri Nov 01, 2019 4:59 pm
Forum: General CNC
Topic: CNC Rotary Plasma Experiments
Replies: 3
Views: 1026

CNC Rotary Plasma Experiments

I decided to do some experiments with my rotary drive and my plasma CNC.

by msimpson
Fri Oct 11, 2019 9:23 am
Forum: General CNC
Topic: No Weld Scrap Metal Fire Pit Ring
Replies: 0
Views: 2563

No Weld Scrap Metal Fire Pit Ring

Here is a scrap metal fire pit ring that I cobbled together.


The write up can be found here:
http://www.kronosrobotics.com/no-weld-firepit
by msimpson
Thu Oct 10, 2019 3:15 pm
Forum: General CNC
Topic: CNC Pyrography Experiments
Replies: 4
Views: 1394

Re: CNC Pyrography Experiments

The hot end is still continuing to evolve. Here I have added a small fan to keep the terminal blocks cooler.
_MG_6515.jpg
I have been able to get some good shading results on MDF.
_MG_6516.jpg
by msimpson
Thu Oct 03, 2019 10:05 am
Forum: General CNC
Topic: CNC Pyrography Experiments
Replies: 4
Views: 1394

Re: CNC Pyrography Experiments

The controller was built from parts I got from Amazon. It consists of the following: 12V 30Amp power supply - $20 20Amp Motor Controller - $8 Dual Display Volt/Amp Meter - $13 Power Source for Display (needs to be isolated) - $5 12V 30Amp Relay - $10 Small Fan Power Cord Other wires and hardware Whi...
by msimpson
Wed Oct 02, 2019 10:26 pm
Forum: General CNC
Topic: CNC Pyrography Experiments
Replies: 4
Views: 1394

CNC Pyrography Experiments

I have been doing some experiments with some custom pyrography components that I built.

See the first experiment here:
by msimpson
Thu Sep 26, 2019 10:12 pm
Forum: General
Topic: KReduCNC
Replies: 5
Views: 2756

Re: KReduCNC

If you are talking about the KRMx02 Y beams (8020 extrusion), I recommend using a guide block to ensure the holes are drilled correctly. You can also enlarge the holes a little to give you more adjustability. As for the large risers, you can purchase them pre-drilled from 8020. There are no holes in...
by msimpson
Fri Sep 20, 2019 3:05 pm
Forum: General CNC
Topic: Finger Jig Experiments
Replies: 6
Views: 1745

Re: Finger Jig Experiments

How Well Does it Work? I have already made several frames, and the fixture works perfect. I had an issue where two of my sides were slightly thicker than the original stock I started with. The meant that cuts on the the originals had to be made about .03" deeper. _MG_6308.jpg I placed the cut part ...
by msimpson
Fri Sep 20, 2019 2:56 pm
Forum: General CNC
Topic: Finger Jig Experiments
Replies: 6
Views: 1745

Re: Finger Jig Experiments

New Upper Clamp The upper clamp works well enough, but it is a pain to have to slide it out of the way when setting up the stock. I cut a piece of 1-1/2" x 1/4" x 4-1/4" aluminum bar and mounted an even larger toggle clamp to it. _MG_6310.jpg I left the rubber pad on the clamp and adjusted it so th...
by msimpson
Fri Sep 20, 2019 1:13 pm
Forum: General CNC
Topic: Finger Jig Experiments
Replies: 6
Views: 1745

Re: Finger Jig Experiments

New Lower Clamp The problem with the lower Festool clamp is that it was hard to reach and was finicky to get the correct tension on the stock. I decided to go with a toggle clamp attached to the end of a piece of 1-1/2" x 1/4" x 8-1/2" aluminum bar stock. Two holes were added to attach some 5/16" c...
by msimpson
Fri Sep 20, 2019 12:36 pm
Forum: General CNC
Topic: Finger Jig Experiments
Replies: 6
Views: 1745

Re: Finger Jig Experiments

Original Clamps The lower clamp is a twist type Festool clamp. It fits the 15 series extrusion perfectly. _MG_6291.jpg The lower clamp is only meant to hold the stock loosely so that the spacer block can help you set the stock to 1" above the extrusion, as shown here. _MG_6293.jpg I am using a Fest...
by msimpson
Fri Sep 20, 2019 11:38 am
Forum: General CNC
Topic: Finger Jig Experiments
Replies: 6
Views: 1745

Re: Finger Jig Experiments

Please note that I used supplies that I had on hand so some of the parts may have some extra holes. Lets start with the table top: _MG_6281.jpg Its a piece of scrap 3/4" birtch plywood cut to 20-1/4" x 18". The base sits on the sides of the frame and is secured by four studs previously installed on ...
by msimpson
Fri Sep 20, 2019 10:47 am
Forum: General CNC
Topic: Finger Jig Experiments
Replies: 6
Views: 1745

Re: Finger Jig Experiments

While this fixture is still undergoing changes, I will take you through some of the iterations. This was the first pass at the fixture: Image1.jpg It worked, but had some issues. The first was the stock faced away from me, so it was difficult to get the stock set properly. Also since it sits on my p...
by msimpson
Fri Sep 20, 2019 10:27 am
Forum: General CNC
Topic: Finger Jig Experiments
Replies: 6
Views: 1745

Finger Jig Experiments

I was in the need of some finger joints, and decided to see if I could make a fixture for my CNCCS builds. I have done something similar with the KRMx02 in the past with a removable section in the table, but could not use it as, the KRMx02 is currently undergoing some conversions. Here is what I cam...
by msimpson
Fri Aug 16, 2019 5:13 pm
Forum: General CNC
Topic: Downdraft welding table
Replies: 0
Views: 2591

Downdraft welding table

I needed to do some down and dirty flux core welds for a project I am working on, but it was raining, so I couldn't do them outside. My CNCCS plasma built is 100% downdraft venting outside so I through this together: _MG_5939.jpg Its simply a 12" x 12" piece of 16 Gauge steel sitting on the slats on...
by msimpson
Sun Apr 28, 2019 1:09 pm
Forum: General CNC
Topic: My first Voice Over Video
Replies: 7
Views: 2191

Re: My first Voice Over Video

Most of the time the fence is in place in case it snags. And it has a few times. That's more of a problem on the large drill press. On this little one it is so under powered. If it catches, it will just stall.
by msimpson
Sat Apr 27, 2019 11:52 am
Forum: General CNC
Topic: My first Voice Over Video
Replies: 7
Views: 2191

Re: My first Voice Over Video

Honestly, I have no interest in becoming a youtuber. That can be a full time job in its self. I just want to take the videos to the next level. I take a lot of pictures and videos as I build things and experiment. Even if I don't intend on making those experiments public. (Some are complete failures...
by msimpson
Fri Apr 26, 2019 9:29 pm
Forum: General CNC
Topic: My first Voice Over Video
Replies: 7
Views: 2191

Re: My first Voice Over Video

Back in my early years I did a lot of stage acting. On the stage everything is exaggerated. I sounds like you have to do that with voice acting. I have a lot to learn doing this kind of thing. I'm sure things will get better as I do more. I just got the correct microphones/mounts/interfaces to get t...
by msimpson
Thu Apr 25, 2019 1:02 am
Forum: General CNC
Topic: My first Voice Over Video
Replies: 7
Views: 2191

Re: My first Voice Over Video

Ok,getting things together.

Better microphone and a little more experience.

by msimpson
Tue Apr 23, 2019 3:20 pm
Forum: General CNC
Topic: My first Voice Over Video
Replies: 7
Views: 2191

My first Voice Over Video

I want to start adding voice overs to my videos. Here is my very first attempt.



I have to tell you, it looks a lot easier than it is. It is going to take me a while to get into the groove.
by msimpson
Fri Mar 01, 2019 6:35 pm
Forum: General CNC
Topic: Harmonic Rotary Drive
Replies: 15
Views: 4043

Re: Harmonic Rotary Drive

I just started my harmonic rotary drive write-up. Its going to take me a while as I don't want to stray to far from the plasma books I am working on. Also I dont want to commit to any electronic parts until I have a chance to do some more testing on both the KRMx02 and CNCCS. I did create an 8020, 1...
by msimpson
Sat Feb 23, 2019 11:15 pm
Forum: General CNC
Topic: Harmonic Rotary Drive
Replies: 15
Views: 4043

Re: Harmonic Rotary Drive

I will be starting a web blog on the harmonic drive after I get a couple more chapters on the CNCCS Plasma table completed ( couple days). I will post links to all the components I will be using.

Note that this will be for the CNCCS as, the write-up for the KRMx02 will be a more involved.
by msimpson
Thu Feb 21, 2019 11:04 pm
Forum: General CNC
Topic: Harmonic Rotary Drive
Replies: 15
Views: 4043

Re: Harmonic Rotary Drive

@mbonadio
You can not use the driver you linked to as it does not support our 48v power supply.
by msimpson
Thu Feb 21, 2019 10:56 pm
Forum: General CNC
Topic: Harmonic Rotary Drive
Replies: 15
Views: 4043

Re: Harmonic Rotary Drive

I got my K12-100 4 jaw chuck to day. _MG_2595.jpg Honestly I doubt I will ever remove it as it can still hold round stock but gives me a much better way of holding square stock. Build 3 of the CNC Construction Set is now undergoing the plasma upgrades so all my milling will be done on this machine. ...
by msimpson
Mon Feb 18, 2019 2:03 pm
Forum: General CNC
Topic: Harmonic Rotary Drive
Replies: 15
Views: 4043

Re: Harmonic Rotary Drive

KRMx02 For the KRMx02 you can swap out one of the drives but in order to have full axis to all drives you will need a driver and breakout board and a way to interface it to your PC. I doubt you have a second parallel port so unless you want to add a PCIe card to your PC, you will have to look-in to...
by msimpson
Wed Feb 06, 2019 9:29 pm
Forum: General CNC
Topic: Harmonic Rotary Drive
Replies: 15
Views: 4043

Re: Harmonic Rotary Drive

I will probably look at doing some milling of aluminum angle and square on the KRMx02 or CNC Construction Set. You can plasma cut aluminum, but the finish wont be as good. For plasma, I only need to support the part by one end. For milling both ends will need to be supported.
by msimpson
Wed Feb 06, 2019 9:26 pm
Forum: General CNC
Topic: Harmonic Rotary Drive
Replies: 15
Views: 4043

Re: Harmonic Rotary Drive

Heavens no, manual gcode is only good for simple things like my breakin loops. For plasma, Sheetcam is a must. Sheetcam has all the plasma provisions needed. Even if I have to run two sperate jobs, it still beats removing the part and reinstalling it.
by msimpson
Wed Feb 06, 2019 11:43 am
Forum: General CNC
Topic: Harmonic Rotary Drive
Replies: 15
Views: 4043

Re: Harmonic Rotary Drive

I have been playing with rotaries for a little while. I have tried a couple that used worm gears, and one of those 6:1 belt driven drives. The worm gear ones just have too much backlash. The belt driven ones have no backlash, but lack the holding power for any serious machining. One area I plan on p...
by msimpson
Wed Feb 06, 2019 1:24 am
Forum: General CNC
Topic: Harmonic Rotary Drive
Replies: 15
Views: 4043

Harmonic Rotary Drive

I recently purchased a harmonic rotary drive. _MG_2404.jpg I paid $430 delivered. It has a 50:1 reduction and is rock solid. So far I have been very happy with it. I did some runout tests here: l_gIWiH4QGU I purchased from Amazon here: https://www.amazon.com/gp/product/B07B2SL9SD/ref=as_li_tl?ie=UTF...
by msimpson
Mon Jan 07, 2019 4:04 pm
Forum: General CNC
Topic: CNC Construction Set V2
Replies: 18
Views: 5019

Re: CNC Construction Set V2

No. The design is pretty much set. Chaining the size of any axis would require you to resize all components running that axis. IE All Gantry components, frame. In addition you may also have stand issues. Also the design is rigid for the x size used, increasing the span of the gantry will result in l...
by msimpson
Mon Oct 22, 2018 4:06 pm
Forum: General CNC
Topic: 3d printer conversion
Replies: 1
Views: 1133

Re: 3d printer conversion

I experimented with this in the early days of the KRMx02. In reality while you can turn any CNC machine into a 3D printer and get them to work. However 3D printers are designed with no load in mind and with fast acceleration and run speeds. Heavy routing and milling machines are designed for heavy l...
by msimpson
Mon Sep 17, 2018 8:22 pm
Forum: General
Topic: KReduCNC
Replies: 5
Views: 2756

Re: KReduCNC

The overall dimensions are about 28" wide and 40" long. I would say it probably weighs about 100lbs. Would be very easy to move with two people. I have casters on mine, so its very movable within the shop. But with stairs you will need some help. Depending on what you have I would say it will cost s...
by msimpson
Sun Sep 16, 2018 9:58 pm
Forum: General
Topic: KReduCNC
Replies: 5
Views: 2756

Re: KReduCNC

What I have on the KReduCNC is up on the website. I probably wont be doing much more with that build anytime in the near future. If you dont have any of the parts, the KReduCNC will cost you between $800 and $1000 to build. You might want to look into my CNC Construction Set machine. Its size is a l...
by msimpson
Fri Sep 14, 2018 11:59 am
Forum: Forum Registration
Topic: Forum Registry Procedures
Replies: 3
Views: 28768

Re: Forum Registry Procedures

There are no private KRmx01 forums. If you need some help with that build, you need to go to the CNCZone.
by msimpson
Wed Aug 08, 2018 10:34 am
Forum: General CNC
Topic: CNC Construction Set V2
Replies: 18
Views: 5019

Re: CNC Construction Set V2

Another status update.

Volume 1: Frame and Carriages - Complete
Volume 2: ACME Drive Components - Complete
Volume 3: Basic Electrical Hookup - In progress