we saw a machine from Australia... or where from, are you talking about this? My chief engineer said that there is no way this machine could cut metal, under any circumstances, the machine has primitive aluminum guides, it's just for fun, it's embossing and not cutting, sooner in wax, it is doubtful whether it will cut a silent groove in soft plastic, and even more doubtful whether it will cut a silent one in the master's records, we have not found any recordings made by the silitone lathe... it is a waste of time. I will try to contact the Swiss master, it is obvious that this the man knows and will understand the seriousness of my interest, it's a pity that I can't establish any contact with him, thanks TOMAS for the immediate answer
Wir haben eine Maschine aus Australien gesehen... oder woher? Mein Chefingenieur meinte, dass diese Maschine auf keinen Fall Metall schneiden könne, auf keinen Fall, die Maschine hat primitive Aluminiumführungen, das ist nur so zum Spaß, es prägt und nicht schneidet, eher in Wachs, es ist zweifelhaft, ob es eine stille Rille in weiches Plastik schneidet, und noch zweifelhafter, ob es eine stille Rille in die Aufzeichnungen des Meisters schneidet, wir haben keine Aufnahmen gefunden, die mit dem Silitone gemacht wurden Drehmaschine... es ist Zeitverschwendung. Ich werde versuchen, den Schweizer Meister zu kontaktieren, es ist offensichtlich, dass der Mann dies weiß und die Ernsthaftigkeit meines Interesses verstehen wird, schade, dass ich keinen Kontakt zu ihm herstellen kann , danke TOMAS für die sofortige Antwort
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farmersplow
- Posts: 376
- Joined: Thu Jun 17, 2021 3:43 am
- Location: Austria - Vienna
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farmersplow
- Posts: 376
- Joined: Thu Jun 17, 2021 3:43 am
- Location: Austria - Vienna
Re: The farmer and his plow - When I set out to build a record cutter
The story continues
It was time to aim for a higher level:
I haven't reported anything for some time. This is not because I have stopped the project.
Quite the opposite!
I decided to aim for a higher level. To build up the project more qualitatively and professionally.
In the last year I spent several thousand hours developing and improving it. My goal was to develop a better cutting head. But to test it, the described construction with platter drive and suspension for the cutting head was not enough. I saw no sense in developing only a cutting head if the rest of the equipment was a mere makeshift. So I redesigned and rebuilt the entire equipment, developed a new cutting head, equipped a new cutting head suspension with dashpot, cutting depth control and control mechanism, completely redesigned the platter drive and reworked the entire frame. The operation with the many individual displays and buttons has also reached the limit of what makes sense and unfortunately also needs to be completely revised. In addition to displays and the most important operating keys, there is also room for a large touch panel in the control panel.
To implement this plan, I had to learn a lot more (besides the cutting process). So I quickly learned CAD software programming. Furthermore I learned tool machining, CNC milling, function control of midi channels, professional dual layer print plate production, programming of TFT panels and all the necessary microprocessor programming elements.
So it took me a lot of time to learn this and to make a plan how the device should look like. I will skip the boring part (learn, learn, learn) and also the part where I wrote a 300 page science research paper on record cutting. (I can't publish the science paper yet because it's a master's thesis for my degree).
So in the next months (whenever I have some time) I want to report about more interesting things, like the construction of my record cutter and the various cutting heads.
Greetings from Austria
Thomas
It was time to aim for a higher level:
I haven't reported anything for some time. This is not because I have stopped the project.
Quite the opposite!
I decided to aim for a higher level. To build up the project more qualitatively and professionally.
In the last year I spent several thousand hours developing and improving it. My goal was to develop a better cutting head. But to test it, the described construction with platter drive and suspension for the cutting head was not enough. I saw no sense in developing only a cutting head if the rest of the equipment was a mere makeshift. So I redesigned and rebuilt the entire equipment, developed a new cutting head, equipped a new cutting head suspension with dashpot, cutting depth control and control mechanism, completely redesigned the platter drive and reworked the entire frame. The operation with the many individual displays and buttons has also reached the limit of what makes sense and unfortunately also needs to be completely revised. In addition to displays and the most important operating keys, there is also room for a large touch panel in the control panel.
To implement this plan, I had to learn a lot more (besides the cutting process). So I quickly learned CAD software programming. Furthermore I learned tool machining, CNC milling, function control of midi channels, professional dual layer print plate production, programming of TFT panels and all the necessary microprocessor programming elements.
So it took me a lot of time to learn this and to make a plan how the device should look like. I will skip the boring part (learn, learn, learn) and also the part where I wrote a 300 page science research paper on record cutting. (I can't publish the science paper yet because it's a master's thesis for my degree).
So in the next months (whenever I have some time) I want to report about more interesting things, like the construction of my record cutter and the various cutting heads.
Greetings from Austria
Thomas
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farmersplow
- Posts: 376
- Joined: Thu Jun 17, 2021 3:43 am
- Location: Austria - Vienna
Re: The farmer and his plow - When I set out to build a record cutter
The cutting head CH-6
Having learned a lot from the findings of the previous cutting heads - and still not understanding a lot - I decided to approach the matter more professionally.
So I developed a complete housing for the cutting head on the computer using CAD software. Optimistically, I thought it would be the ultimate head.
What experience and knowledge can I incorporate into the design? First, I learned that a stiffer head (and this does not only mean the housing) but primarily the propulsion of the speakers. The stiffer the diaphragm was, the higher the main resonance was. One of my goals is to achieve a main resonance above 1000Hz.
Secondly, it is important to keep the weight of the moving masses as low as possible to be able to cut high frequencies. Thirdly, the coils should please not burn out so often. I have had the best experience with the large coils of the resonance loudspeakers. They are a bit heavier, but very robust. However, the speaker unit must be completely rebuilt and should ultimately be easily replaceable.
The cutting head CH-6 should therefore be built like the "best" of my previous heads, but with a complete housing and spiders (membranes) made of aluminum.
Here is a CAD rendering image of my design.
So I set to work milling the head. Unfortunately, I don't own a 5-axis CNC mill (yet), so I had to do the main body part at a friend's house. (My dear wife would also throw me out if I put a 5-axis CNC milling machine in the living room). I then anodized the housing parts as well. And while waiting for the parts to come back, I set to work building an embossing tool to make the aluminum diaphragms.
On a lathe I tried to create a pressing tool.
First tests with embossing test paper have unfortunately shown that this tool I made on a lathe.
Therefore, I have immediately made a CAD design and started this CNC to mill.
Figure CHC rendering of the stamp group
At this time, the aluminum rough blocks for my overall unit also arrived.
Here is a rendered section of my CAD plan for the overall unit.
Greetings from Austria
Thomas
Having learned a lot from the findings of the previous cutting heads - and still not understanding a lot - I decided to approach the matter more professionally.
So I developed a complete housing for the cutting head on the computer using CAD software. Optimistically, I thought it would be the ultimate head.
What experience and knowledge can I incorporate into the design? First, I learned that a stiffer head (and this does not only mean the housing) but primarily the propulsion of the speakers. The stiffer the diaphragm was, the higher the main resonance was. One of my goals is to achieve a main resonance above 1000Hz.
Secondly, it is important to keep the weight of the moving masses as low as possible to be able to cut high frequencies. Thirdly, the coils should please not burn out so often. I have had the best experience with the large coils of the resonance loudspeakers. They are a bit heavier, but very robust. However, the speaker unit must be completely rebuilt and should ultimately be easily replaceable.
The cutting head CH-6 should therefore be built like the "best" of my previous heads, but with a complete housing and spiders (membranes) made of aluminum.
Here is a CAD rendering image of my design.
So I set to work milling the head. Unfortunately, I don't own a 5-axis CNC mill (yet), so I had to do the main body part at a friend's house. (My dear wife would also throw me out if I put a 5-axis CNC milling machine in the living room). I then anodized the housing parts as well. And while waiting for the parts to come back, I set to work building an embossing tool to make the aluminum diaphragms.
On a lathe I tried to create a pressing tool.
First tests with embossing test paper have unfortunately shown that this tool I made on a lathe.
Therefore, I have immediately made a CAD design and started this CNC to mill.
Figure CHC rendering of the stamp group
At this time, the aluminum rough blocks for my overall unit also arrived.
Here is a rendered section of my CAD plan for the overall unit.
Greetings from Austria
Thomas
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Re: The farmer and his plow - When I set out to build a record cutter
make me a head my friend, my lathe is almost ready, I just need a head
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farmersplow
- Posts: 376
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- Location: Austria - Vienna
Re: The farmer and his plow - When I set out to build a record cutter
I would love nothing more than to sell you a cutting head. But I will only sell something that I am convinced of its quality. My newest head (CH-9) seems to meet these requirements but is still undergoing stress testing and long term testing. Only when it passes this, I will describe and offer the head. Until then I ask for patience. If everything works well it will be in November.
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farmersplow
- Posts: 376
- Joined: Thu Jun 17, 2021 3:43 am
- Location: Austria - Vienna
Re: The farmer and his plow - When I set out to build a record cutter
The cutting head CH-6 cone and torsion bar
(nov 2022)
Since I am still waiting for parts, I started to make some torsion bars and cones (carbon cones) for stock. Basically the same as in the past. However, I made the torsion bars a little thinner walled and for the carbon funnels I experimented with different hardeners. In the end, however, the results were not noticeably different.
torsion bars
torsion bar detail
carbon mat
blanks before molding
And because there was still some waiting time left, I also made the holders for the torque tube
Milling holders
Greetings from Austria
Thomas
(nov 2022)
Since I am still waiting for parts, I started to make some torsion bars and cones (carbon cones) for stock. Basically the same as in the past. However, I made the torsion bars a little thinner walled and for the carbon funnels I experimented with different hardeners. In the end, however, the results were not noticeably different.
torsion bars
torsion bar detail
carbon mat
blanks before molding
And because there was still some waiting time left, I also made the holders for the torque tube
Milling holders
Greetings from Austria
Thomas
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Re: The farmer and his plow - When I set out to build a record cutter
Amazing updates! I love checking in on this thread, great work for everything you are doing!
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farmersplow
- Posts: 376
- Joined: Thu Jun 17, 2021 3:43 am
- Location: Austria - Vienna
Re: The farmer and his plow - When I set out to build a record cutter
The cutting head CH-6 housing
(dec 2022)
In December, the anodized housing parts of my CH-6 cutting head finally arrived. For me it is like Christmas, but what am I talking about, it was Christmas.
housing of my CH-6 cutting head
Housing with cover
A first fitting shows that the resonance speakers also fit in well. For the front cover I chose poison green acrylic glass, milled and fitted. So a first step would be done, but there is still a lot to do.
One of my goals in the development was to be able to replace the driver coils (speaker unit) easily and quickly. Even though I have never burned out one of these coils to date, I have often enough experienced that from time to time (mostly due to overload at too high frequencies) so many trolls the coils went up in smoke. Especially then the pain is great and a quick and easy solution is sought.
Video how to insert the driver coils into the housing
Greetings from Austria
Thomas
(dec 2022)
In December, the anodized housing parts of my CH-6 cutting head finally arrived. For me it is like Christmas, but what am I talking about, it was Christmas.
housing of my CH-6 cutting head
Housing with cover
A first fitting shows that the resonance speakers also fit in well. For the front cover I chose poison green acrylic glass, milled and fitted. So a first step would be done, but there is still a lot to do.
One of my goals in the development was to be able to replace the driver coils (speaker unit) easily and quickly. Even though I have never burned out one of these coils to date, I have often enough experienced that from time to time (mostly due to overload at too high frequencies) so many trolls the coils went up in smoke. Especially then the pain is great and a quick and easy solution is sought.
Video how to insert the driver coils into the housing
Greetings from Austria
Thomas
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farmersplow
- Posts: 376
- Joined: Thu Jun 17, 2021 3:43 am
- Location: Austria - Vienna
Re: The farmer and his plow - When I set out to build a record cutter
The cutting head CH-6 membrane
(01_2023)
A new year, a new happiness! That's what they say in our country. On Jan. 2, 2023, I picked up the membrane dies and made a punching tool on the lathe with my friend.
The stamping tool was then used to stamp blank rings from anodized aluminum.
The aluminum rings were then pressed into diaphragms using the stamping tool.
The first membranes were visibly not very satisfactory.
Subsequently, I carried out tests with different materials and material thicknesses. The whole thing with different results:
After reworking the embossing tools and suitable plates, good results were then achieved:
My goal is to achieve a higher resonant frequency by using lighter and stiffer "spiders". At the same time, however, to create a harmonic characteristic curve that has a smooth rise to the resonant frequency and a smooth descent to at least 16kHz. The second resonance should be above 12kHz if possible. Whether this succeeds I can find out only after the complete assembly and various test cuts. Only when these criteria are met, I can close the loop with the feedback coils. (I could close the loop before, but it would make little sense). But for this I still need a pair of parts for the cutting head.
Greetings from Austria
Thomas
(01_2023)
A new year, a new happiness! That's what they say in our country. On Jan. 2, 2023, I picked up the membrane dies and made a punching tool on the lathe with my friend.
The stamping tool was then used to stamp blank rings from anodized aluminum.
The aluminum rings were then pressed into diaphragms using the stamping tool.
The first membranes were visibly not very satisfactory.
Subsequently, I carried out tests with different materials and material thicknesses. The whole thing with different results:
After reworking the embossing tools and suitable plates, good results were then achieved:
My goal is to achieve a higher resonant frequency by using lighter and stiffer "spiders". At the same time, however, to create a harmonic characteristic curve that has a smooth rise to the resonant frequency and a smooth descent to at least 16kHz. The second resonance should be above 12kHz if possible. Whether this succeeds I can find out only after the complete assembly and various test cuts. Only when these criteria are met, I can close the loop with the feedback coils. (I could close the loop before, but it would make little sense). But for this I still need a pair of parts for the cutting head.
Greetings from Austria
Thomas
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farmersplow
- Posts: 376
- Joined: Thu Jun 17, 2021 3:43 am
- Location: Austria - Vienna
Re: The farmer and his plow - When I set out to build a record cutter
Total device - The parts are coming
(01 2023)
It is the 8th of January but for me it is already Christmas! I was able to get the first CNC-milled parts for my complete unit.
CNC PARTS
Unfortunately, I can not yet assemble the device, because a few central screws are still missing. The delivery has been "delayed" because of the holidays.
- My life consists of waiting.
Greetings from Austria
Thomas
(01 2023)
It is the 8th of January but for me it is already Christmas! I was able to get the first CNC-milled parts for my complete unit.
CNC PARTS
Unfortunately, I can not yet assemble the device, because a few central screws are still missing. The delivery has been "delayed" because of the holidays.
- My life consists of waiting.
Greetings from Austria
Thomas
You do not have the required permissions to view the files attached to this post.
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farmersplow
- Posts: 376
- Joined: Thu Jun 17, 2021 3:43 am
- Location: Austria - Vienna
Re: The farmer and his plow - When I set out to build a record cutter
Cutterhead CH-6 - The lighting
(01 2023)
Since I hate waiting for ... anything ... to happen, I set about making the lighting for the Cutterhead. To do this, I first make a few patterns out of wood to create a suitable shape:
I then use molding compound to create a negative mold:
My dear wife always says that I can not cook! Haha!
VIDEO: LED-Light_cook.mp4
When the mold has cooled and is silicone-solid, the LEDs can be inserted and the recesses are filled with epoxy resin.
When the resin is dry, it can be removed from the mold. Now I have five LED lights for my five CH-6 cases. However, they still need to be finished.
(01 2023)
Since I hate waiting for ... anything ... to happen, I set about making the lighting for the Cutterhead. To do this, I first make a few patterns out of wood to create a suitable shape:
I then use molding compound to create a negative mold:
My dear wife always says that I can not cook! Haha!
VIDEO: LED-Light_cook.mp4
When the mold has cooled and is silicone-solid, the LEDs can be inserted and the recesses are filled with epoxy resin.
When the resin is dry, it can be removed from the mold. Now I have five LED lights for my five CH-6 cases. However, they still need to be finished.
You do not have the required permissions to view the files attached to this post.
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farmersplow
- Posts: 376
- Joined: Thu Jun 17, 2021 3:43 am
- Location: Austria - Vienna
Re: The farmer and his plow - When I set out to build a record cutter
Overall unit – assembly
(01 2023)
It is now mid-January and the ordered screws have finally arrived.
In the areas of the platter, the cutting head suspension and at the cutting head, only stainless steel screws are used to eliminate magnetic influences. Steel screws are only used where no interference from magnetic fields can occur.
At this stage of development, the housing is not yet built - first everything must work well.
To reduce the roughest resonances, eight aluminum feet with rubber damping are mounted to the base plate.
Now the assembly of the first parts can begin.
The cutterhead suspension box receives a Y-Z adjustment unit to ultimately position the cutterhead accurately.
After that, I mounted the box for the cutterhead suspension. Since I am a realist and assume that other cutterheads will also have to be developed, I made a variable mounting option with numerous drill holes. In this way, cutterheads with a wide variety of sizes and geometries can be mounted on the unit.
An adjustable laser holder is also provided.
This laser helps save an enormous amount of time when removing and installing the cutting head and having to reposition it each time.
What do you think? It looks quite good at first sight, doesn't it?
Greetings from Austria
Thomas
(01 2023)
It is now mid-January and the ordered screws have finally arrived.
In the areas of the platter, the cutting head suspension and at the cutting head, only stainless steel screws are used to eliminate magnetic influences. Steel screws are only used where no interference from magnetic fields can occur.
At this stage of development, the housing is not yet built - first everything must work well.
To reduce the roughest resonances, eight aluminum feet with rubber damping are mounted to the base plate.
Now the assembly of the first parts can begin.
The cutterhead suspension box receives a Y-Z adjustment unit to ultimately position the cutterhead accurately.
After that, I mounted the box for the cutterhead suspension. Since I am a realist and assume that other cutterheads will also have to be developed, I made a variable mounting option with numerous drill holes. In this way, cutterheads with a wide variety of sizes and geometries can be mounted on the unit.
An adjustable laser holder is also provided.
This laser helps save an enormous amount of time when removing and installing the cutting head and having to reposition it each time.
What do you think? It looks quite good at first sight, doesn't it?
Greetings from Austria
Thomas
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Re: The farmer and his plow - When I set out to build a record cutter
Sure bloody. looks absolutely awesome. Do plan on selling these or is it just for your personal use.farmersplow wrote: ↑Sat Sep 30, 2023 10:43 amWhat do you think? It looks quite good at first sight, doesn't it?
Greetings from Austria
Thomas
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farmersplow
- Posts: 376
- Joined: Thu Jun 17, 2021 3:43 am
- Location: Austria - Vienna
Re: The farmer and his plow - When I set out to build a record cutter
Hello CutR, thank you for your positive opinion.
I write this report for all who are interested in the topic "Record-Lathe", would like to know more and learn from experiences and mistakes. I am always happy when someone gives his opinion on the treat because it motivates me to report to you. (Because if nobody would be interested, I wouldn't need to write).
To your question: All my plans and designs are reproducible. Once I am able to meet the quality I envision, then yes. Then I can imagine making a small series for sale.
Greetings from Austria
Thomas
I write this report for all who are interested in the topic "Record-Lathe", would like to know more and learn from experiences and mistakes. I am always happy when someone gives his opinion on the treat because it motivates me to report to you. (Because if nobody would be interested, I wouldn't need to write).
To your question: All my plans and designs are reproducible. Once I am able to meet the quality I envision, then yes. Then I can imagine making a small series for sale.
Greetings from Austria
Thomas
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farmersplow
- Posts: 376
- Joined: Thu Jun 17, 2021 3:43 am
- Location: Austria - Vienna
Re: The farmer and his plow - When I set out to build a record cutter
Overall device - construction of the box for the cutting head suspension
(01 2023)
The rough device structure and the housing for the suspension were quickly put together. But it is like building a house. After extensive planning and construction of the foundation, the shell with the windows is built quite quickly. But then progress is laborious. You don't see much progress, are happy about every partial success and think - this will never be finished!
That's how I feel now in this phase. For the suspension box I have to build a large number of small parts until the unit works at all. But constant dripping wears away the stone - so they say. So I continue to keep the time short so that I can finally test my new cutting head.
On this occasion I also ask for your understanding that I do not show all details of the suspension, because there is also one or the other patent that is still pending. But what I can show, I show in the hope to motivate as many trolls as possible and to inspire them for the secrets of plate cutting.
So I start building the individual parts for the suspension unit. Here the manufacture of the plate for the connections:
After that I make a few brass parts. First, the attachment for the tension spring, which will replace a heavy counterweight:
Then a holder for the suction tube. I chose brass here instead of aluminum because it is harder, also anti-magnetic and just looks good. Especially when it is polished.
Other parts like the rocker arm cam and the shaft are made of stainless steel. The bracket is made of aluminum and some spacer rings are turned from Teflon to prevent the friction between the metal parts.
Weight sensor
My plan is to permanently measure and display the support weight of the stylus on the plate blank. To achieve my goal, I have installed a weight sensor in the moving part of the suspension unit to calculate the contact weight by means of differential measurement.
Greetings from Austria
Thomas
(01 2023)
The rough device structure and the housing for the suspension were quickly put together. But it is like building a house. After extensive planning and construction of the foundation, the shell with the windows is built quite quickly. But then progress is laborious. You don't see much progress, are happy about every partial success and think - this will never be finished!
That's how I feel now in this phase. For the suspension box I have to build a large number of small parts until the unit works at all. But constant dripping wears away the stone - so they say. So I continue to keep the time short so that I can finally test my new cutting head.
On this occasion I also ask for your understanding that I do not show all details of the suspension, because there is also one or the other patent that is still pending. But what I can show, I show in the hope to motivate as many trolls as possible and to inspire them for the secrets of plate cutting.
So I start building the individual parts for the suspension unit. Here the manufacture of the plate for the connections:
After that I make a few brass parts. First, the attachment for the tension spring, which will replace a heavy counterweight:
Then a holder for the suction tube. I chose brass here instead of aluminum because it is harder, also anti-magnetic and just looks good. Especially when it is polished.
Other parts like the rocker arm cam and the shaft are made of stainless steel. The bracket is made of aluminum and some spacer rings are turned from Teflon to prevent the friction between the metal parts.
Weight sensor
My plan is to permanently measure and display the support weight of the stylus on the plate blank. To achieve my goal, I have installed a weight sensor in the moving part of the suspension unit to calculate the contact weight by means of differential measurement.
Greetings from Austria
Thomas
You do not have the required permissions to view the files attached to this post.
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farmersplow
- Posts: 376
- Joined: Thu Jun 17, 2021 3:43 am
- Location: Austria - Vienna
Re: The farmer and his plow - When I set out to build a record cutter
Dashpot
(still 01 2023)
Every day more parts are turned and milled. Here the cylinder for the dashpot has been turned from brass...
The built-in dashpot not only looks very good, it also works very well. But so that I can test the function exactly, more parts have to be assembled...
So I quickly continue building, because January is almost over! Here I make a large knurled screw on the lathe. In total I need three of them. Of course, made of brass!
...and here are a few more videos of milling and turning:
.
Greetings from Austria
Thomas
(still 01 2023)
Every day more parts are turned and milled. Here the cylinder for the dashpot has been turned from brass...
The built-in dashpot not only looks very good, it also works very well. But so that I can test the function exactly, more parts have to be assembled...
So I quickly continue building, because January is almost over! Here I make a large knurled screw on the lathe. In total I need three of them. Of course, made of brass!
...and here are a few more videos of milling and turning:
.
Greetings from Austria
Thomas
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farmersplow
- Posts: 376
- Joined: Thu Jun 17, 2021 3:43 am
- Location: Austria - Vienna
Re: The farmer and his plow - When I set out to build a record cutter
Turntable - motor drive
February has come and I have to interrupt the production of the parts of the suspension box a little. Because the ordered turntable has arrived. It should provide the engine for my device. I chose a Reloop-RP7000MK2 because it basically has a very high starting torque and rumble&flutter values lower than almost any other direct-drive turntable. If the speed control is not stable enough during operation or gives too little torque, this motor with its three Hall encoders also needs to be tuned. Then a MOD becomes necessary.
The device is disassembled and measured down to the last screw. It is easy for me to see that the internal construction is also surprisingly high quality. Here was well processed!
The motor and motor housing are also well manufactured.
Based on the measurement of the pickup points, I made an adapter plate from aluminum.
A short production video:
The result is well done and for the attachment I have still used brass rings. Since you can say what you want, so brass inserts in the aluminum look just beautiful (I love something like that).
The aluminum adapter plate is only part of the motor's suspension. The rest is made of a solid but damping thermoset plastic. Unfortunately, I have to wait a bit for the material again to finish the plate drive. (Have I mentioned that I hate waiting?). But I have plenty of other things to finish, so I'll get back to work on the Cutterhead CH-6.
SUPPLEMENT: You will notice that I jump back and forth in the topic more often. This has different reasons. First, I want to report how my progress really is or was. This also means that I often have to wait for materials, I don't always have access to the lathe or the big CNC mill (it's not always free). Sometimes I find out during the work that I have to change something in the planning. And sometimes something doesn't work as planned and then I have to figure out how to fix it. For example, I've had the touch display with me for a month, but I can't use it yet because I have to learn how to program the thing first.
(I'm also often afraid of losing track of it).
I hope you don't mind the mess too much.
Greetings from Austria
Thomas
February has come and I have to interrupt the production of the parts of the suspension box a little. Because the ordered turntable has arrived. It should provide the engine for my device. I chose a Reloop-RP7000MK2 because it basically has a very high starting torque and rumble&flutter values lower than almost any other direct-drive turntable. If the speed control is not stable enough during operation or gives too little torque, this motor with its three Hall encoders also needs to be tuned. Then a MOD becomes necessary.
The device is disassembled and measured down to the last screw. It is easy for me to see that the internal construction is also surprisingly high quality. Here was well processed!
The motor and motor housing are also well manufactured.
Based on the measurement of the pickup points, I made an adapter plate from aluminum.
A short production video:
The result is well done and for the attachment I have still used brass rings. Since you can say what you want, so brass inserts in the aluminum look just beautiful (I love something like that).
The aluminum adapter plate is only part of the motor's suspension. The rest is made of a solid but damping thermoset plastic. Unfortunately, I have to wait a bit for the material again to finish the plate drive. (Have I mentioned that I hate waiting?). But I have plenty of other things to finish, so I'll get back to work on the Cutterhead CH-6.
SUPPLEMENT: You will notice that I jump back and forth in the topic more often. This has different reasons. First, I want to report how my progress really is or was. This also means that I often have to wait for materials, I don't always have access to the lathe or the big CNC mill (it's not always free). Sometimes I find out during the work that I have to change something in the planning. And sometimes something doesn't work as planned and then I have to figure out how to fix it. For example, I've had the touch display with me for a month, but I can't use it yet because I have to learn how to program the thing first.
(I'm also often afraid of losing track of it).
I hope you don't mind the mess too much.
Greetings from Austria
Thomas
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Re: The farmer and his plow - When I set out to build a record cutter
Looking great, Thomas. Vielen Dank für Ihre Fortschrittsberichte. √