Digital Hobbyist

Re: Oscilloscopes

johnwa27@... (John Walker) — Thu, 05 Dec 2024 12:43:21 -0800

Certainly not lab grade but functional and likely very handy. I have the FINISRI tablet. Most of the use is just to see if there is a signal where rough measurements are fine, with frequencies below a few MHz,

There is a newer one on Black Friday special that looks even more useful.

https://www.fnirsi.com/products/2c53p?_pos=4&_sid=5bb76a4d7&_ss=r

John

Re: Oscilloscopes

animal@... (mike allen) — Tue, 03 Dec 2024 22:13:04 -0800

Thanks Peter

animal

Re: Oscilloscopes

animal@... (mike allen) — Tue, 03 Dec 2024 22:12:22 -0800

Thanks John , will add Siglent to by search

animal

On 12/2/24 8:57 PM, BuffaloJohn via groups.io wrote:

Re: Oscilloscopes

peterloron@... (Peter Loron) — Tue, 03 Dec 2024 10:23:43 -0800

DeOxit products are good for contact cleaning. I have a Rigol scope and it works well.

-Pete

Re: Oscilloscopes

johndurbetaki@... (BuffaloJohn) — Mon, 02 Dec 2024 20:57:38 -0800

Three years ago, I got a "Siglent Technologies SDS1104X-E 100Mhz Digital Oscilloscope 4 channels".

I wanted 4 channels, recording depth,, decent sample rate, 100 Mhz bandwidth was good enough for what I needed. I don't know how it compares to the brands you mentioned, but it has been a very reliable and capable scope.

Oscilloscopes

animal@... (mike allen) — Mon, 02 Dec 2024 20:19:48 -0800

hey folks , so I'm startin to get a bit more serious bout buying a new
oscilloscope . Does anyone have any experience with any of these Hanatak
, Rigol , Iwon , FNIRSI or the like ? I'm also lookin at some of the 100
MHZ Tek TDS scopes . MY newest scope is a Tektronix T922 with a dead
channel . I really like the size of these newer scopes I mentioned .

Also whats a good contact cleaner ? I figure I'd at least try
cleaning the contacts to see if I can revive that 2nd channel . I hate
to have to resort to my 1950's round CRT Heathkit scope ( though it's
the only one out of 4 that work )

thanks

animal

Re: Small Miller 2000 compressor manual ?

byghtn5@... (Jon Rus) — Tue, 05 Nov 2024 23:27:45 -0800

Sorry about the repeated messages, the PrintScreen looks good on my e-mail screen but continues to appear to be illegible on the loop-back message...

https://www.youtube.com/watch?v=uGPIIXtPkC4

Look for -->"victorallen5689"<-- as a commenter.

He claims to be able and willing to help.

On 11/6/2024 12:22 AM, mike allen wrote:

Re: Small Miller 2000 compressor manual ?

byghtn5@... (Jon Rus) — Tue, 05 Nov 2024 23:16:52 -0800

Retry on PrintScreen

Here is another possibility....

Victor Allen, VV Below VV - At the bottom- says he might be able to help! ---

On 11/6/2024 12:22 AM, mike allen wrote:

Re: Small Miller 2000 compressor manual ?

byghtn5@... (Jon Rus) — Tue, 05 Nov 2024 23:09:20 -0800

Here is another possibility....

Victor Allen, VV Below VV says he might be able to help---

On 11/6/2024 12:22 AM, mike allen wrote:

Re: Small Miller 2000 compressor manual ?

byghtn5@... (Jon Rus) — Tue, 05 Nov 2024 23:06:00 -0800

One more time....

https://www.ebay.com/itm/116020564625

Maybe the seller would make appropriate copies for a little compensation....

On 11/6/2024 12:22 AM, mike allen wrote:

Re: Small Miller 2000 compressor manual ?

byghtn5@... (Jon Rus) — Tue, 05 Nov 2024 23:04:41 -0800

Here is one...

https://www.ebay.com/p/1227641119

Maybe the seller will photograph, or photocopy, or scan to PDF the manual for a $5 offer?

Maybe "Print Screen" the actual eBay images as well...

Good Luck!

On 11/6/2024 12:22 AM, mike allen wrote:

Small Miller 2000 compressor manual ?

animal@... (mike allen) — Tue, 05 Nov 2024 21:23:02 -0800

hey folks , wondering if anyone here has one of these small Miller 2000 compressors , Probably sold for air brushes back in their time . I'm looking for a copy of a manual for them . One of mine needs oil & is missing a breather , I can deal with the breather , just not sure what kind of oil to put in it .

thanks

animal

Re: FW: [SouthBendLathe] DIY power feed for mill ?

rhulslander@... (Ralph Hulslander) — Tue, 05 Nov 2024 13:59:21 -0800

Can one use the direct drive motors to position the table accurately? With a stepper I know the position but wonder if on-off gives you precision.

Would you use the motors for CNC?

Re: Diy Powerfeed for mill

animal@... (mike allen) — Tue, 05 Nov 2024 11:46:32 -0800

thanks John .

animal

On 11/5/24 12:23 AM, John Dammeyer wrote:

Re: Diy Powerfeed for mill

johnd@... (John Dammeyer) — Tue, 05 Nov 2024 00:23:59 -0800

I’ve passed on your email to Donald at Bergerda so he’ll know that you were recommended by me.

John

Re: Diy Powerfeed for mill

johnd@... (John Dammeyer) — Mon, 04 Nov 2024 18:35:08 -0800

I bought mine from House of Tools here in Victoria before they vanished. It’s equivalent to the Grizzly G3616 which has the smaller table etc. compared to the G3617 which also has the horizontal spindle.

Grizzly tools has discontinued even referencing this mill. Used to be able to enter in that number and it would come up with the info about it but state it was discontinued.

Here’s the spec sheet.

http://cdn2.grizzly.com/specsheets/g3616_ds.pdf

But there is a way to it

https://www.grizzly.com/products/grizzly-vertical-mill/g3616

Under Product Linksyou can get the parts list and manual. Way better than the one from House of Tools.

On the Bergerda site https://en.bergerda.com/ if you ask your question in this little box odds are it will be Donald Chen who responds. I’ve found him to be very helpful.

Re: Diy Powerfeed for mill

animal@... (mike allen) — Mon, 04 Nov 2024 17:45:16 -0800

I need to find pricing for these Bergereda motors . John I think we may have the same mills ? I noticed that the lower spindle Collar on my spindle was loose letting the spindle move up & down in my spindle quill . Have ya ever had this issue with yours ? If so should I just tighten it as much as I can & reinstall or did ya find there was a sequence to do that . SO far I haven't found much on this machine & the manual looks like it was made by a drunk 4 year old with a Etch-A-Sketch .

Thanks

animal

On 11/3/24 11:49 PM, John Dammeyer wrote:

Re: FW: [SouthBendLathe] DIY power feed for mill ?

bechetboat@... (John Lindo) — Mon, 04 Nov 2024 09:07:13 -0800

I have seen years ago, a Bridgeport clone mill Z axis column power fed with a Nissan used to be "Datsun 260 "cold weather starter motor.

Titon Eng CA produce a Super starter and there original motors were modified for various NASCAR cars using this motor,

sourced from Datsun Canada. Today possibly available and cheap from car scrap yards.

This is a gear reduction motor, brushed so RPM changes are difficult, but with plenty of torque.

I believe physical size was about 5" dia x 8" long.

The guy basically drove it off a 12V battery adjacent to the mill.

Being it a starter motor the drive pinion only entered the gear attached to the original mill bevel gear arrangement when the button was pressed to excite the motor, so manual operation of the knee was always available.

Cheers

John

FW: [SouthBendLathe] DIY power feed for mill ?

johnd@... (John Dammeyer) — Mon, 04 Nov 2024 08:23:14 -0800

From: [email protected] [mailto:[email protected]] On Behalf Of John Walker via groups.io
Sent: November 4, 2024 7:40 AM
To: [email protected]
Subject: Re: [SouthBendLathe] DIY power feed for mill ?

I found this video that shows a power feed using a wiper motor. It allows for a quick disconnect so the hand wheels can be used.

https://youtu.be/v5eqgtVek-A?si=B_KJIYXLLms7aoqp

Re: Diy Powerfeed for mill

johnd@... (John Dammeyer) — Sun, 03 Nov 2024 23:49:41 -0800

I’m now running Bergerda AX Servo’s on all axis with the exception of the 4^th Axis Harmonic drive which has a 3 phase motor but a different Servo Driver.

https://www.bergerda.com/

Bergerda does make a lot of motors for the sewing industry. One time when I was having some tuning issues their engineers made a quick video using a cell phone and sent that to me to help me out. Great support!

John