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08-02-2009, 12:47 AM
| #246 | |
| Senior Member  Join Date: Jun 2006
Posts: 831
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| ...and now, a word from our sponsor: |
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08-02-2009, 06:15 AM
| #247 | |
| Senior Member  Join Date: Apr 2009
Posts: 301
| Quote:
 
__________________ .......my gaussmeter project..... schematic & pcb ........ .......first pickup with my cnc winder........ | |
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08-02-2009, 11:38 AM
| #248 | |
| Senior Member Join Date: Dec 2008
Posts: 173
| Quote:
The most common for board spacing are 1/4" OD aluminum with 4-40 threads. For the electronics lab, I often had to make up special length standoffs for just this reason; to get proper engagement between connectors on matching boards. | |
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| The Following User Says Thank You to Bruce Johnson For This Useful Post: | mickmutante (08-02-2009) |
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08-02-2009, 01:35 PM
| #249 |
| Senior Member Join Date: Jun 2009 Location: Nashville, TN
Posts: 168
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You guys kick so much ass! I'm glad I found this forum when I did. It has been a world of help to me. The kindness you guys share is amazing as well. Redhouse build PCBs. Bruce Johnson building standoffs. I look forward to the day I can return the kindness on this forum.
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08-03-2009, 01:04 AM
| #250 |
| Senior Member  Join Date: Sep 2006 Location: Brisbane, Australia
Posts: 105
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EDIT: Was reading the forum in hybrid mode and missed the last posts. Looks like I missed the group buy too lol Looking forward to seeing some of these completed, good luck to all! Last edited by dpm; 08-03-2009 at 01:15 AM. |
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08-03-2009, 01:47 PM
| #251 | |
| Senior Member Join Date: Jun 2006
Posts: 831
| Quote:
Looks like just proud of 11mm or 7/16. The down side of including these in the parts kit are that threading forces an early decision....Metric or SAE. The holes in the PCB I'm making allow for 4-40 screws ...but... the holes in the LCD display are slightly smaller and I had to "ream" them out to get a 4-40 through. The spec sheet on the LCD module indicates the hole is for a "4" but I'm sure it's a #4 metric as all the other measurements on the spec sheet are metric. We don't know that skill levels everyone in this group-buy have so if we went 4-40 we'd force everyone to ream the LCD module mounting holes, someone may goof and bugger their module. On the other hand if we pre-choose metric others might have trouble finding the screws locally. Like me for instance, I went down to the local Ace hardware because they have a huge nut-n-bolt section and I can usually find whatever I need but they didn't have any suitable #4 metric machine screw. That is when I decided to go 4-40 but had to ream the holes in the LCD module to fit. I'm thinking each person should decide for themselves which way would be best for them, that is why I didn't bother adding the nut-n-bolts into this group-buy. Perhaps you could offerer this directly with everyone like you offered to build enclosures in an earlier thread? That way no one is forced to decide before they get their stuff. | |
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08-03-2009, 01:59 PM
| #252 |
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Anything that reduces the # of shipping hops is a good thing, IMVHO. If Bruce is willing to throw this together as a lagniappe I'd be happy to receive whatever he produces, the caveat is pretty clear whichever thread is chosen.
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08-03-2009, 02:04 PM
| #253 |
| Senior Member Join Date: Jun 2006
Posts: 831
| UPDATE: This group-buy was closed 8-1-2009 There has been a new development dealing with the international currency exchange. When I went to Paypal Elepro the funds we didn't get the same Dollar-to-Euro currency exchange rate as we would have got a month ago when this first started. Apparently it has gone up (for us) so our $27 PIC is now $30 and since we have to pay the Paypal (15euro) that went up too. So... we all need to ante-up another $3.06. (David Schwab and Bruce Johnson will have PM's) I covered the difference with my Visa card for now, but we'll need to get this settled before I ship out the packages. Three parts from Mouser are on back-order so we will have an additional 1-week (estimated) wait for the Mouser stuff. I'm sure Elepro will post when he ships our PIC's. Those who have sent their $3.00 Currency/Exchange rate adjustment Redhouse David Schwab JasonG spy firewire Bruce Johnson Arndawg56 LtKojak mkat automan Dave Kerr JohnH defaced David King StarryNight mickmutante Jeff Callahan 52Bill Joe Gwinn Last edited by RedHouse; 08-04-2009 at 05:22 AM. |
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08-03-2009, 02:06 PM
| #254 | |
| Senior Member Join Date: Jun 2006
Posts: 831
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08-03-2009, 02:36 PM
| #255 | |
| Old Timer Join Date: May 2006 Location: Boston, MA area
Posts: 1,293
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This is $0.14 per screw. MSC Item Detail Some of my local hardware stores do carry M4 hardware, the Ace Hardware chain does in fact sell over the web (although they don't make a lot of noise about it), and MSC has an infinite supply. | |
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08-03-2009, 03:35 PM
| #256 | |
| Senior Member Join Date: Jun 2006
Posts: 831
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 The simplest solution? lets review...I'm doing this for nothing, spent countless hours over the last 4 weeks on this forum and traveling, with gas at $2.65/Gal I've driven 20 miles to meet with Wolfe, 20 miles (and a $22 Ferry ride) to meet Jason and now here we are at the end of this thing and you also want me to buy a box of screws for $14.09 and pay $8 shipping to my house ...and throw a few extras in the box as insurance against lost or malformed screws? ...that's the simplest solution?". (not mention I still have to sort and box-up 18 orders and take then to the Post Office 3 miles away) That's classic Joe. Sorry if it sounds like a rant, but I was kinda thinking I went the full mile already, if you really can't get your own screws and Bruce can't deal with it, then I suppose I can. Everyone will need to send more money. Last edited by RedHouse; 08-03-2009 at 04:00 PM. Reason: typo's | |
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08-03-2009, 04:33 PM
| #257 |
| Pickup Maker  Join Date: May 2006 Location: Montclair, NJ
Posts: 5,583
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I say lets go with M4 threads in the standoffs. If everyone has to get their own screws, so be it! It beats having to find the right standoffs and the screws.
__________________ Those who create are rare; those who cannot are numerous. Therefore, the latter are stronger. - Coco Chanel www.sgd-lutherie.com www.myspace.com/sgdlutherie www.myspace.com/davidschwab |
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08-03-2009, 05:36 PM
| #258 |
| Senior Member  Join Date: Oct 2008 Location: Victoria, BC Canada
Posts: 144
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Being Canadian eh, we've got a whole bunch of metric up here. Even the weather is metric! You can't swing a dead cat without hitting something metric. Brad I can volunteer to send you a box of M4 screws if you want. It's obvious you've gone the extra mile (literally). Let me know.
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08-03-2009, 11:58 PM
| #259 |
| Senior Member Join Date: Dec 2008
Posts: 173
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No need to get everyone else involved....I'll make up the standoffs and provide the screws and mail them all to Brad to distribute with the kits. This kind of hardware stuff is routine for me, and I'm glad to contribute to this group project. We'll go with 7/16" long standoffs, threaded M4 in both ends. Is 1/4" OD okay, or should they be smaller for clearance? Aluminum or Delrin? It's (4) standoffs and (8) screws per kit x (20) kits, right? Do we need another set of standoffs to hold the whole assembly from the front panel of the enclosure? Let me know. The deadline will be whenever Brad is ready to ship the kits. Brad, if there are any other details or questions, it may be better to e-mail me directly. I don't always check this forum every day. (And it's getting really hard to find the ends of the threads!) |
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08-04-2009, 12:20 AM
| #260 |
| Senior Member Join Date: Jun 2006
Posts: 831
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That would be very cool, thanks to both of you for stepping up. Bruce you have the ball. We will have to be carefull with getting the length correct on the threaded portion of the screws, I'm calculating it would have to be no more than 8mm because the stand-off will be like 11mm+ But first, look at the data sheet and confirm it's a 4M please: http://www.newhavendisplay.com/index...-FSW-FBW-L.pdf I will have to wait until the Mouser parts show up to confirm on my end because I already reamed the holes out on the test unit to accept 4-40's. Actual Dimensions: Space between the two boards (LCD & PIC) is: 10.92mm (.430") LCD Board is (double sided - double layer) is: 1.06mm (.063") PIC PCB stock I use for this is: 1.54mm (.060") Washers are .55mm (.022") Lets not go south of the above measurements because we might encounter manufacturing tolerances with the header/socket arrangement. The header/socket when fully seated are the components that dictate the minimum distance between boards. The Newhaven LCD module board is a double layer - double sided board and we dont want to bend or otherwise distort it structurally when screwing it down. Last edited by RedHouse; 08-04-2009 at 02:16 AM. |
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08-04-2009, 12:43 AM
| #261 | |
| Senior Member Join Date: Jun 2009 Location: Nashville, TN
Posts: 168
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I sent extra just in case something like this happened. Let me know if I need to send more. | |
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08-04-2009, 01:20 AM
| #262 | |
| Senior Member Join Date: Jun 2006
Posts: 831
| Quote:
I'll try to keep updating post #253 above until the Edit button disappears in that post. Last edited by RedHouse; 08-04-2009 at 04:04 AM. Reason: update list | |
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08-04-2009, 02:15 AM
| #263 | |
| Senior Member Join Date: Jun 2006
Posts: 831
| Quote:
I measured 8.3mm from the LCD's board to the top of the LCD screen, but the data sheet specify's 8.6mm. (dimension T1 on the data sheet) So bruce, for this top part wouldn't we just need a spacer with longer screw?. To clairfy we're on the same page, we're calling a stand-off a threaded thing and a spacer an un-threaded thing right?. | |
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08-04-2009, 03:16 AM
| #264 | |
| Junior Member Join Date: Jul 2009
Posts: 16
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So seeing that you are a very generous guy (also knowing how much work you put into making those PCB's so nice) keep the ten as a gesture of my appreciation. And thanks again -Dawg- Last edited by Arndawg56; 08-04-2009 at 04:44 AM. | |
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08-04-2009, 04:41 AM
| #265 | |
| Senior Member Join Date: Jun 2006
Posts: 831
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  All kidding aside, I appreciate it Dawg, thanks. | |
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08-04-2009, 12:00 PM
| #266 |
| Senior Member  Join Date: Feb 2009
Posts: 123
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Brad, check your PayPal account....  |
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08-04-2009, 02:03 PM
| #267 | |
| Senior Member Join Date: Dec 2008
Posts: 173
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I'll work it all out today, but yes, my hardware kit will probably be: (4) standoffs threaded M2.5 all the way through, to go between the boards, (4) spacers with through holes to go between the LCD board and front panel, (4) short M2.5 screws to go in the back (4) long M2.5 screws to go in from the front, through the spacer and into the standoff. I'll get these parts together and mail them out by the end of the week. | |
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| The Following 7 Users Say Thank You to Bruce Johnson For This Useful Post: | automan (08-04-2009), Dave Kerr (08-04-2009), David Schwab (08-04-2009), defaced (08-04-2009), John_H (08-04-2009), mickmutante (08-04-2009), RedHouse (08-04-2009) |
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08-04-2009, 02:07 PM
| #268 |
| Senior Member Join Date: Feb 2009
Posts: 123
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Nice... |
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08-04-2009, 03:08 PM
| #269 |
| Senior Member Join Date: Jun 2006
Posts: 831
| UPDATE: This group-buy was closed 8-1-2009 The latest bump in the road is dealing with international currency exchange rates. We didn't get the same Dollar-to-Euro currency exchange rate as we would have got a month ago when this first started and when we developed the participant cost figure. It has gone up (for us) and our $27 PIC is now $30 and since we have to pay the Paypal (15euro) that went up too. So... we all need to ante-up another $3.06. (I covered the difference with my Visa card for now, but we'll need to get this settled before I ship out the packages) STATUS: Funds have been transfered to and received by Elepro, he will post a message here when he ships the PIC's. Mouser has shipped all but 3 parts on back-order so we will have an additional 1-week (estimated). Those who have sent their $3.00 Currency/Exchange rate adjustment: Redhouse David Schwab JasonG spy firewire Bruce Johnson Arndawg56 LtKojak mkat automan Dave Kerr JohnH defaced David King StarryNight mickmutante Jeff Callahan 52Bill Joe Gwinn Last edited by RedHouse; 08-05-2009 at 02:36 PM. |
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08-04-2009, 03:14 PM
| #270 | |
| Senior Member Join Date: Jun 2006
Posts: 831
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This sounds like a lot of material 152 standoffs & spacers, 152 screws, are you sure we shouldn't be sending you some compensation? IMHO it's nice to volunteer labor, but parts cost money out-of-pocket and I usually insist people pay for their parts when I'm doing labor-exchanges or volunteer work. I'm sure there are a few who will be saying "shut up he's doing it for free" but that's not how I roll. Let us know, we could always Paypal you directly. | |
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08-04-2009, 04:51 PM
| #271 |
| Senior Member Join Date: Apr 2009
Posts: 301
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shipped
__________________ .......my gaussmeter project..... schematic & pcb ........ .......first pickup with my cnc winder........ |
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08-04-2009, 08:27 PM
| #272 | |
| Senior Member  Join Date: Feb 2008 Location: Milano, Italy
Posts: 305
| Quote:
__________________ Pepe aka Lt. Kojak Milano, Italy | |
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08-04-2009, 11:52 PM
| #273 | |
| Senior Member Join Date: Jun 2006
Posts: 831
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08-05-2009, 02:45 PM
| #274 | |
| Senior Member Join Date: Jun 2006
Posts: 831
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08-05-2009, 03:24 PM
| #275 | |
| Senior Member Join Date: Jun 2006
Posts: 831
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Here we go again... Quote:
Two 8's are more expensive as is a 20 pin snap-away (which can be cut into a 16 pin) Logistics seem to be nickle-n-diming us ...every time we turn around here. The up-side is that we're only 6 pieces short, I'll check with a couple local sources to see if I can get us a suitable replacement. I'd really hate to have to place another order with any of the usual suspects (Mouser/Digikey/Allied/Jameco) and have to pay another $8 shipping. Stand by... | |
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08-05-2009, 04:25 PM
| #276 |
| Senior Member  Join Date: Dec 2006 Location: York Pa
Posts: 617
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4 pieces short, I have SIP headers on hand that are long enough to cover both of my builds.
__________________ -Mike |
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08-06-2009, 02:05 AM
| #277 | |
| Senior Member Join Date: Jun 2006
Posts: 831
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I think that will do it. I have 4 in my shop I can throw in so I will be able to ship everybody's out without delay when everything is in. Whew! | |
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08-06-2009, 02:19 AM
| #278 |
| Senior Member Join Date: Dec 2006 Location: York Pa
Posts: 617
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Don't worry about it. These SIP headers were bought just to check out the product anyway.
__________________ -Mike |
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08-06-2009, 02:52 AM
| #279 |
| Senior Member Join Date: Jun 2006
Posts: 831
| The EDIT button went away on post #269, so I have to re-post again... UPDATE: This group-buy was closed 8-1-2009 The latest bump in the road is dealing with international currency exchange rates. We didn't get the same Dollar-to-Euro currency exchange rate as we would have got a month ago when this first started and when we developed the participant cost figure. It has gone up (for us) and our $27 PIC is now $30 and since we have to pay the Paypal (15euro) that went up too. So... we all need to ante-up another $3.06. (I covered the difference with my Visa card for now, but we'll need to get this settled before I ship out the packages) STATUS: Elepro has shipped the PIC's (see post# 271) Mouser has shipped all but 3 parts on back-order. Mouser shipped us what they had and discontinued the 16-pin header, Mike (aka; defaced) had some on hand and volunteered to fill his order, and I have some in my shop which means we as a group don't have to buy elsewhere to fill the group-buy. (thanks Mike) Bruce is working the stand-off and screws issue. (thanks Bruce) Those who have sent their $3.00 Currency/Exchange rate adjustment: Redhouse David Schwab JasonG spy firewire Bruce Johnson Arndawg56 LtKojak mkat automan Dave Kerr JohnH defaced David King StarryNight mickmutante Jeff Callahan 52Bill Joe Gwinn Abstract: Anyone remember that old nursury story "Little Toot" (modern version: Thomas the Tank Engine) I think I can...I think I can...I think I can...I think I can... Last edited by RedHouse; 08-06-2009 at 03:17 AM. |
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08-07-2009, 02:56 PM
| #280 |
| Senior Member Join Date: Jun 2006
Posts: 831
| UPDATE: (This group-buy closed August 1, 2009) Tried to post this last night but the forum seemed to be down... The first part of the Mouser order has arrived:  STATUS: Still collecting the Dollar-to-Euro currency exchange rate adjustment (post# 253 ) see list below. Elepro shipped the PIC's and they are currently in transit. (post# 271) Mouser has shipped all but 3 parts on back-order. Mouser shipped us what they had and discontinued the 16-pin header, Mike (aka; defaced) had some on hand and volunteered to fill his order (post# 276 ) and I have some in my shop which means we as a group don't have to buy elsewhere to fill the group-buy. (thanks Mike) Bruce is working the stand-off and screws issue, post# 267 . (thanks Bruce) Those who have sent their $3.00 Currency/Exchange rate adjustment: Redhouse David Schwab JasonG spy firewire Bruce Johnson Arndawg56 LtKojak mkat automan Dave Kerr JohnH defaced David King StarryNight mickmutante Jeff Callahan 52Bill Joe Gwinn (have not yet to sent their $3.06 Currency/Exchange rate adjustment) |
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