Re: Drill a Hole
Solder lugs & solenoids? .
animal
By
mike allen
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#119538
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Re: Drill a Hole
Sorry to butt in... you can tell essentially all of my PCB experience is in older pinball machines!!
David
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Sent: Monday, May 6, 2024 3:55 PM
To:
By
David Robertson
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#119537
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Re: Drill a Hole
Actually, while it used to be when Gerber invented the machines and format
that everything was in imperial, the current Gerber Layout Format
Specifications says:
"Use metric. Imperial is historic and
By
BuffaloJohn
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#119536
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Re: Drill a Hole
That was true years ago back when ICs were through-hole devices with 0.1 inch pitch where common. Times have changed and now ICs are surface mounted with no holes. But we do still see connectors
By
Chris Albertson <albertson.chris@...>
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#119535
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Re: Drill a Hole
He's talking about the older stuff that was laid out on a 2.54mm (1/10")
grid. DIP packages are that size, as are most headers. Of course there are
1.27mm headers (1/20") as well.
Most newer
By
Tony Smith
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#119534
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Re: Drill a Hole
Not to be argumentative, but .156 in (common on pin headers) is 4 mm.
David Robertson.
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Sent: Monday, May 6, 2024 2:56 PM
To: [email protected]
By
David Robertson
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#119533
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Re: Drill a Hole
Decimal inches at that.
Tony
Sent: Tuesday, 7 May 2024 5:57 AM
To: [email protected]
Subject: Re: [7x12MiniLathe] Drill a Hole
Most do not know most holes on pc board are layout
By
Tony Smith
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#119532
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Re: Mini lathe motor temperature
Right, and how is slapping a 100¡ãC cut-off switch on the casing going to help you? If your casing hits 80¡ãC you are probably already screwed. What part of ¡°the enamel on the coil will start to
By
Tony Smith
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#119531
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Re: Drill a Hole
Most do not know most holes on pc board are layout in inch.
Dave
By
davesmith1800
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#119530
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Re: Drill a Hole
The PCB drills are these: https://www.aliexpress.com/item/1000004406073.html, or carbide https://www.aliexpress.com/item/4000905456721.html.
3mm & under are cheap because they use these by the
By
Tony Smith
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#119529
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Re: Mini lathe motor temperature
The best wat is to figure out thd outside temperature is when coil is at 105¡ãC. After researching the problem it was between 15¡ãC and 20¡ãC different.
Basically thd outside temperature of motor is
By
davesmith1800
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#119528
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Re: Mini lathe motor temperature
Yes, but you need to put your sensor on the coils.
Which are on the armature for a brushed motor.
Which are spinning around at high speed.
Can you see the problem?
Tony
By
Tony Smith
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#119527
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Re: Mini lathe motor temperature
I tested the gauge with boiling water witch is 100¡ãC. It was on the mark.
Note: Use distilled water only
If over 500 foot above some correction is need ti temperature.
Dave
By
davesmith1800
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#119526
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Re: Mini lathe motor temperature
When someone says the motor is at 105 C. My question is ¡°How did you calibrate the sensor?¡± Most motors will start to be damaged at 85 C and 105 C is about the limit of what they can take. I
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Chris Albertson <albertson.chris@...>
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#119525
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Re: Mini lathe motor temperature
With temperature gauge I can see I needs to run at full speed
It low cost cost item to save from buying a $160.00 motor .
1) I first was think of using a time delay fuse.? The remember thd low speed
By
davesmith1800
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#119524
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Re: Drill a Hole
Thanks Johannes
animal
By
mike allen
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#119523
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Re: Drill a Hole
Hi Mike
I have not found my shop yet, it is here somewhere. Home depot is ok, however not for the most I am doing. Mostly I get my stuff from China.
Johannes Lavoll.
Mexico
By
Johannes
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#119522
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Re: Mini lathe motor temperature
The Guage is from Walmart it cost under $14.00
It is also on Amazon for about same price.
My wife has free shipping on Walmart.
Dave
By
davesmith1800
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#119521
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Re: Mini lathe motor temperature
That is a hot motor
Thank you for photo mine did have a label.
120¡ãC is 248¡ãF
Dave
By
davesmith1800
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#119520
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Re: Drill a Hole
????? A bit off topic but Johanes I'm wondering if you have supply
houses where you can get drills & lathe bits in your p[art of the
country . I have one that @ 50 miles from me in Reno & another
By
mike allen
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#119519
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