Hanoi Amator Project (HAP)

Anything goes! Inventors! Artists! Cutting edge solutions to old problems. But also non-commercial usage of record cutting. Cost- effective, cost-ineffective, nutso, brilliant, terribly fabulous and sometimes fabulously terrible ideas.

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Re: Hanoi Amator Project (HAP)

Unread postby Hanoi » Thu Dec 14, 2017 1:30 pm

update a pix
Image
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Re: Hanoi Amator Project (HAP)

Unread postby Hanoi » Wed Dec 27, 2017 4:06 pm

I have just made a simple lathe control
Image

Happy new year to all trolls! :)
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Re: Hanoi Amator Project (HAP)

Unread postby markrob » Wed Dec 27, 2017 9:22 pm

Hi,

Looks great! Are you using the TMC2100? I just ordered a few to play with.

Mark
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Re: Hanoi Amator Project (HAP)

Unread postby Hanoi » Wed Dec 27, 2017 11:50 pm

markrob wrote:Hi,

Looks great! Are you using the TMC2100? I just ordered a few to play with.

Mark


Hi Mark,
Yes, as your recommendation I bought one, and it works really well, silence.

Image
Image
Image

Thank you!
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Re: Hanoi Amator Project (HAP)

Unread postby Hanoi » Thu Dec 28, 2017 12:32 am

Now I got a problem with vacuum suction, it can not suck the static, static always got stuck behind the needle :( . I don't know if my vacuum pump is too weak or may caused of other reason, 2mm from suction tube to needle and blank. Here is the datasheet image, can someone tell me if it is powerful enough?
Image
thank you!
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Re: Hanoi Amator Project (HAP)

Unread postby KNOP » Thu Dec 28, 2017 11:14 am

Hey not an expert but I'm using a rietschle vte8.
It has a 133l/min max airflow and I run it at 80% speed most of the time. I do however use a lot of duct tape instead of 'real' connectors, so I guess I do have quite a few vacuum losses. My previous pump which did not work had a
118l/min airflow, but was a piston pump, not a rotary vane pump. I suspect the previous pump did not work well was because of the flow ripple of using a single piston vac pump.
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Re: Hanoi Amator Project (HAP)

Unread postby jjwharris » Thu Dec 28, 2017 6:13 pm

That's looking great!

Are you planning on implementing a controller to lift the cutting head up and down? Also, does the pot work fairly accurately for groove width?

In terms of static I don't have much personal experience but I know Todd from Deep Groove Mastering has a video on cutting plastic where he is very cautious about static. Maybe you can get some information from that?

[YouTube2]https://youtu.be/1dGU79-1DYM [/YouTube2]
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Re: Hanoi Amator Project (HAP)

Unread postby Hanoi » Fri Dec 29, 2017 1:08 am

KNOP wrote:Hey not an expert but I'm using a rietschle vte8.
It has a 133l/min max airflow and I run it at 80% speed most of the time. I do however use a lot of duct tape instead of 'real' connectors, so I guess I do have quite a few vacuum losses. My previous pump which did not work had a
118l/min airflow, but was a piston pump, not a rotary vane pump. I suspect the previous pump did not work well was because of the flow ripple of using a single piston vac pump.

Hi Knop, thank you for your information, it means my vacuum pump is too weak to work. So I'm ordering another one, different type at my local shop, HB-129 - like this: http://www.crelec.co.za/hb-129.html

https://www.ebay.co.uk/itm/30cfm-Compressor-Vacuum-Blower-Pump-HB-129-vac-pump-Pond-Aerator-Busch-Becker/162764058947?hash=item25e57e7143:g:FHMAAOSwAHtaEbq5

Image

Image

Image

Hope this works!
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Re: Hanoi Amator Project (HAP)

Unread postby Hanoi » Fri Dec 29, 2017 1:31 am

jjwharris wrote:That's looking great!

Are you planning on implementing a controller to lift the cutting head up and down? Also, does the pot work fairly accurately for groove width?

In terms of static I don't have much personal experience but I know Todd from Deep Groove Mastering has a video on cutting plastic where he is very cautious about static. Maybe you can get some information from that?

[YouTube2]https://youtu.be/1dGU79-1DYM [/YouTube2]

Hi John,
I didn't test this stepper motor, and don't know if it produce vibration or background noise. About the controller to lift the cutting head up and down may be later, after testing this :)
I have tried cutting many times, but always get noise at some first seconds (5 - 10 seconds) :?: :?: :?: I didnt apply the wax spray and no heating the stylus.
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Re: Hanoi Amator Project (HAP)

Unread postby jjwharris » Fri Dec 29, 2017 6:25 pm

I'm using the same controller and motor and haven't noticed any noise.

My plan is to eventually use a dashpot and servo to raise and lower the cutting head, I need to rethink my overhead as at the moment it is not as secure as it should be.

Cutting plastic is outside of my experience but failing to get an anti static spray there seem to be a few diy alternatives that could work online?
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Re: Hanoi Amator Project (HAP)

Unread postby Hanoi » Wed Jan 03, 2018 5:42 am

Finally, it works!
I'm using a rotary vane pump, it is too strong so I did 2 input lines to minus air flow, that make noise as a flute.
Image
(the big one, compare to previous one)


I've cut ten times without anti static, but failed, so I decided to use the anti-static (for clothes, made in Russia, I dont know the name, you can see in the video) and it works really well.
and the result is ok for me!


Iam happy with I have done up to now, any way need to reduce the vacuum noise :P
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Re: Hanoi Amator Project (HAP)

Unread postby Hanoi » Wed Jan 03, 2018 5:54 am

Static is evil, killed my 10 blanks! :twisted: :twisted: :twisted:
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Re: Hanoi Amator Project (HAP)

Unread postby Ritter » Thu Jan 11, 2018 10:01 pm

Hanoi wrote:Static is evil, killed my 10 blanks! :twisted: :twisted: :twisted:


Nice work so far... in terms of the blanks: I know that feeling. I'm just working through something similar myself. :cry:

Just out of interest, what angle are you cutting at and with how much weight?

I should probably do an update on my own progress.
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Re: Hanoi Amator Project (HAP)

Unread postby Hanoi » Fri Jan 12, 2018 12:51 am

Ritter wrote:
Hanoi wrote:Static is evil, killed my 10 blanks! :twisted: :twisted: :twisted:


Nice work so far... in terms of the blanks: I know that feeling. I'm just working through something similar myself. :cry:

Just out of interest, what angle are you cutting at and with how much weight?

I should probably do an update on my own progress.

It is vertical angle (~90 deg or less) and about 12 - 15gram weight.
I can adjust up to 25 minutes per side with this lathe controller
Everything is ok now and I'm planning to make another "body" for the lathe.

Cheers!
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Re: Hanoi Amator Project (HAP)

Unread postby Ritter » Wed Jan 17, 2018 7:00 pm

Lovely work..

I notice the dashpot in your video; is this a pull or push-pull dashpot?
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