Hi Andrew / H4h
All pledgers have paid:
QHarley: $65US – Paid
PBooysen: $65US – Paid
CLee: 1 x Cubie (R550 – value of Pi we would use too) – Pledged
GvdBerg: $65US – Paid
OJvRensburg: R650 – Paid
Francois: R500
C. Scholtz: R500
A. Vermeulen: R600
BankBuilder: R3000
Driven Software / K Trethewey: R3500Did i miss anyone?
Will put together list of spends and goals tonight
Attached some pics of the X rails though for your enjoyment (: v2 now with spring preload
Peter
--Hi All,Let's have a last round of fund raising for this great project. H4H will match all donations made Rand 4 Rand by the end of next week, so there will still be time to donate if you have not done so already.Peter can you please let the group know how much has been raised (pledged & paid) thus far, what our target is, and what cool stuff we could do extra if we raised more than the target.Picking up the version 2 rails at 4 this afternoon for proper testing over the weekend (:If all goes well, we can have the next sets cut on Monday
Will keep you posted - exciting weekend ahead--On Tue, Nov 19, 2013 at 9:00 AM, Peter van der Walt (Gmail) <peter.p...@gmail.com> wrote:
Finished beta testing of my rail system, and applied fixes to the design - just sent of revised design to Shaheer, hope he can still squeeze job in before Friday.1. I made the lower idler bearing a spring loaded design - to compensate for any deviance in the bends. Carriages now 3-parts that bolt together.2. Dropped the unnecessary side supports, with the 2 x 45 degree bends the center section is strong enough on its own3. changed mounting orientation - removing 4 x bends (saves around R30/set plus easier installation)4. Moved position of homing switch to better contact carriage5. Adapted motor mount to fit either NEMA17 or NEMA23 motors. NEMA23's might be better after all.Attached DXF for review - ready to opensource it as CC-BY-NC (http://creativecommons.org/licenses/by-nc/2.0/)... so please honor the licence already applicable to attached design.PS: the first beta test set is up for grabs if anyone wants to build a nice big printer, medium duty CNC? contact me out of thread if you want it, cheap cheap - check the video I posted to youtube or on http://www.facebook.com/openhardwarecozaI also ordered 3 x NEMA23's for h4H from the donation funds and some t2.5 pulleys from johan at my special supplier prices.And lastly, Thanks Driven Software / Kevin Trethewey, we received your proof of payment for R3500! That's awesome! Thank youPeterOn Sat, Nov 16, 2013 at 12:18 PM, Peter van der Walt (Gmail) <peter.p...@gmail.com> wrote:
Some beefy hardware these laser mirror mounts. Time to CAD some carriages
On Nov 15, 2013 6:19 PM, "Peter van der Walt (Gmail)" <peter.p...@gmail.com> wrote:Another good suprise. Lasercutters finished my rail prototypes early!
Braved two highways in the rain to go pickup.
And heres a video of first test
https://www.youtube.com/watch?v=-dn_CBM9LPs&feature=youtube_gdata_player
What do you think? Worth a test fit?
Peter
On Nov 15, 2013 11:55 AM, "Peter van der Walt (Gmail)" <peter.p...@gmail.com> wrote:
Mirrors and laser heads arrived at PO
PARCEL TRACKING RESULTSItem Number: II286260955ZA was last scanned on: 2013/11/14 at 09:46 Location last scanned: BALLITO Currently has status of: At Office
TRACKING
LINETYPE DATE TIME BRANCH COMMENTS 1 At Office 2013/11/14 09:46 BALLITO First Notification to recipient 2 In transit 2013/11/13 14:02 DURMAIL (HUB) 3 In transit 2013/11/11 13:55 JHB INT MAIL CENTRE (HUB) 4 From Customs 2013/11/11 09:07 JHB INT MAIL CENTRE (HUB) 5 To Customs 2013/11/08 11:43 JHB INT MAIL CENTRE (HUB) 6 Incomming International 2013/11/08 11:42 JHB INT MAIL CENTRE (HUB)
On Fri, Nov 15, 2013 at 11:23 AM, Peter van der Walt (Gmail) <peter.p...@gmail.com> wrote:
25mm Square Tubing and Bellice connectors: R600ZA BuysSpent so far:5. So the funds raised so far will all be allocation toward the Centurion Laser (:4. Quentin is also building himself a 100w out of pocket3. Since we have not had any donations from KZN yet we also scratched the KZN machine - and instead I am now building the KZN machine out of own pocket (will still stand at H4H KZN - but will belong to me as I paid for it)2. After discussions on capabilities - we decided to scratch the portable and rather up the others1. Initially would have been 3 x machines of 40w, one being a smaller portableYeah we scratched the 40w about 85 messages ago in thread (;So lets recap
Definitely going 100w.
2 x Heavy Duty Reflector Holders @ $19 each = $38
1 x Laser Head @ $18.5 eachHT Cable @ $4.2550mA Panel Meter - for manually adjusting output power = $9.502 x Military missile launch switches @ $3 each = $6 (safety first)1 x 30A power switch @ $5
1 x Red laser diode dot $1 (help with beam alignment)1 x Arduino Nano: $141 x Nano Screw Terminal breakout: $1212 x 624VV groove bearings @ $2 each = $241 x CubieBoard = 0.00 (donated by Lee! - go support him so he can donate more (;Total Spent US: $132.25
Next Spend:24v Power Supply (help find best price before I order from china @ $29 - which is what I paid for mine)Linear Slides - as reported will get back my prototypes from the cutters on Monday and test, cost yet unknown - but estimate under R1000
Stepper motors, belt, pulleys: R400+100+150Lasercut Perspex panels: Acrylic is opaque to 10.6um IR light - so makes a good safety shield. I am doing my laser in a smoky brown 3mm acrylic which gets lasercut then slid into OpenBeam frame. will check cost - have so far only cut the front, and was around R400 excl openbeam
Design Decisions:Z Axis automated or not? Adds cost, and its not like you really adjust Z during a cut - makes focussing easier when starting cut though. Each new thickness of sheet you place on bed, you need to tune the height
CO2 tube cooling: Radiator vs proper chiller?Plan of action1. Laserhead and mirror mounts should arrive this week2. if the linear slides test out OK on Monday - i'll get H4H's set cut in stainless steel (prototypes in mild steel to save cost)
3. Already bought the Alu for the frame - just tweaking design - I want to cut it for you before couriering down, to exact lenghths4. Build frame and install Linear slides, motors, belts, endstop switches
5. Wiring - bough a few kms of wire - courier should be dropping off today - will calculate lengths and buy connectors so we can do this professionally6. Do the wiring7. Install laserGRBL on the Nano and wire endstops and stepper drivers to the relevant pins
8. Install Cubian on the CubieBoard, apt-get install python, then install LasaurApp and connect it to the Nano.9. Connect and run some movement tests and do calibration10. Install a marker or a 5mw laser to do test and learn the software toolchain while we order the tubes and PSU
11. Order the PSU and tubes - due to the size of the crates these are going to be Imported by Sea (yay that I moved down to Durban) - interesting exercise too - wiating on the first tube now as learning exercise. ETA 6 weeks. Cost about R8000
12. Install laser tube and PSU, connect to compressor and water supply + cooler13. Startb compressor, load up file and stand back to make some Awesome!14. make a Contributors Plaque
MaterialOn a related note, we need material. I popped into the local maizeys on Tuesday and bought a sheet of 3mm perspex (R795) and some delrin, ptfe and other useful engineering plastics. Bill came to around R1100. So i figured i'd enquire about "offcuts" while the saw my sheet down to size. Managed to walk out with about 1/4 sheet at 0 charge and turns out for another few hundred I could bring a bakkie and collect the entire pile!
Worth checking if the one in silverton does the same. And start getting that going. Could also be a cost saving as we could use some of that material to make the H4H frame?
Peter
On Fri, Nov 15, 2013 at 10:40 AM, Org Jansen van Rensburg <org...@gmail.com> wrote:
It look as if we might be able to go for the bigger (size) and better (power) model. Peter?--On Fri, Nov 15, 2013 at 7:22 AM, Kevin Trethewey <kev...@gmail.com> wrote:
Hi Schalk
We're the guys that run the coderetreats that I've seen advertised on this list.
I've been to lambda luminaries and I know a couple of our Driven team have visited H4H at some point.
I'd be very happy to visit and chat one evening (we have bold plans!).
Kevin
On 15 Nov 2013 7:11 AM, "Schalk Heunis" <schalk...@gmail.com> wrote:----Hi KevinThanks, that is very generous. Maybe you want to come tell us more about Driven Software one evening at House4Hack?
On Fri, Nov 15, 2013 at 6:11 AM, Kevin Trethewey <kev...@gmail.com> wrote:Hi Peter
I would like to donate R3500 on behalf of Driven Software, a local consultancy that actively supports the ZA developer community.
Kevin
K
On 14 Nov 2013 8:46 PM, "Peter van der Walt (Gmail)" <peter.p...@gmail.com> wrote:--Thanks Andrew Turpin! R3000 donation!
Peter
On Nov 14, 2013 4:37 PM, "Schalk Heunis" <schalk...@gmail.com> wrote:--Ani you rock!--SOn Thu, Nov 14, 2013 at 3:37 PM, Ani Vermeulen <jace...@gmail.com> wrote:R600 Done.:)
On Monday, 11 November 2013 10:15:23 UTC+2, Peter van der Walt wrote:Easiest at the moment, is to drop a donation into OpenHardware.co.za's account
Openhardware: Savings: 62381685068FNB Branch Code: 250655That's anyway linked to the Paypal used to buy most of the goods anyway (:Thanks Ani
PS: No news from MakerBeam yet
PeterOn Mon, Nov 11, 2013 at 10:10 AM, Ani Vermeulen <jace...@gmail.com> wrote:
Hi guys,Am having a bit of a financially disastrous month, so I wanted to find out how the donations for the Laser Cutter work before all my money is gone.Someone mentioned a bank account earlier but no actual details. Who/how would we go about paying if we wanted to donate?ThanksAni
On Saturday, 9 November 2013 17:43:39 UTC+2, Quentin Harley wrote:This looks very promising...
Sent from my iPadHold thumbs, maybe they can help us a bit:
---------- Forwarded message ----------From: Peter van der Walt (OpenHardware.co.za) <pe...@openhardware.co.za>
Date: Sat, Nov 9, 2013 at 4:09 PM
Subject: Re: Welcome to Inventables
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Hi Peter
Almost forgot. Put me down for R1000. I will make payment today. Can you give me banking details. I think it has been mentioned somewhere in the posts but I missed it.
Regards
Arnold
Hi all.
Been swamped with work, and waited out the Chinese new year, but at last
100w tube and PSU paid for this morning.
Will ship by land to Shanghai in 2-5 days and then onward to Durban by container in about 2-3 weeks (sharing container so departure date not exactly set. Once filled...) After which it will be 4-5weeks until it arrives in Durban
Once I have those in hand I can design the mountings, rest of the side panels
Peter
So a little before midnight last night, the last few months of worked started coming together into
Now you know where some of your money went too (:
On another front. Got the final shipping quotes etc and it looks like we are good to go mostly. But we still need a few thousand as a buffer for tax and clearance fees, So keep those donations coming if you can.
There are a few things we can improve with more funds too like auto Z height etc...
Peter
On Jan 24, 2014 2:38 PM, "Peter van der Walt (Gmail)" <peter.p...@gmail.com> wrote:Got it! Will make a plan
On Jan 24, 2014 2:36 PM, "C.Lee Taylor" <le...@leenx.org> wrote:Please remember, that it needs a new and improved push button switch, I can't find one that fits.Thanks!!On 24 January 2014 14:35, Peter van der Walt (Gmail) <peter.p...@gmail.com> wrote:
Whoo! Great stuff.
No worries my Cubie there too. Will flash yours when it gets there
On Jan 24, 2014 2:33 PM, "C.Lee Taylor" <le...@leenx.org> wrote:On that note, CubieBoard with Devin Pearson, hoping that he will be past H4H PTA before I will. Have not had a chance to flash with NAND with Linux, just been too busy and don't wish to hold up the process any more than I have already.On 24 January 2014 14:09, Peter van der Walt (Gmail) <peter.p...@gmail.com> wrote:
Hi Dennis.
Too late for the Double Up. EFT probably easiest and cheapest (; and much needed! The side panels are a bit expensive (but safety critical)
As an FYI, i was at the house this morning and Quentin helped me get the beast to the point of the attached pic (;
Still some distance to go!
On Jan 21, 2014 11:39 AM, "Dennis Kriel" <dennis...@gmail.com> wrote:HI LaZaur PeopleI would like to make a donation, where would be the best place? The Paypal account or H4H EFT? Is is to late to get it backed by H4H?