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robertspark last won the day on February 20 2015

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About robertspark

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  1. robertspark

    Bit of a bench in the making

    Alaskan chainsaw mill? Used one a bit with oak sleepers, works a treat https://www.chainsawbars.co.uk/alaskan-mill-landing-page/?gclid=Cj0KCQjwgOzdBRDlARIsAJ6_HNnhLiya8e80jlw9GhoJvlqr1NPBQZAFvRYRen97wNszPtVg5pcB8roaAgdqEALw_wcB
  2. robertspark

    Build or buy? 30t Press

    I've got one similar, very handy. Mine is 20t, and have considered swapping the hand jack for a pneumatic one for about £50, saves the faf when trying to work one handed and other hand steady a stack of old bearing races I use as guides or presses. I normally split the old bearing races and use the inner and outer races. Work well when pressing in New bearing races such as wheel bearings because they are split they are just undersize
  3. Yes I know a long shot....😁i am looking for more an exploded diagram than a part number for the range rover Evoque steering wheel air bag retainer. The bit that clips into the steering wheel and holds the squib and also holds the horn / steering wheel center plastic logo. Basically the metal frame and plastic sprung clips you can see in this image That hold the front logo cover on Thanks
  4. robertspark

    Just bought a metal detector

    ...well I've learnt something, thought soil was soil, didn't know that you get land and beach detectors , thanks
  5. robertspark

    Just bought a metal detector

    Always useful if you've ever lost a nut or bolt in the grass or stone drive Alternative... Big old speaker magnet on a string.... Dragged back and forth over the suspect area...
  6. robertspark

    Dual Sim phones

    I did not have a problem, because its Android One it is "pure Android", i.e. there is near zero manufacturer input into it. Worked in english out of the box, all the updates arrive directly from google every month, I don't have the wait for the manufacturer to decide when they want to release something etc. Have a read of android-one here: https://www.android.com/one/ Xiaomi apparently released the A1 to rival the google pixel at a much lower price, there is a review here: https://www.trustedreviews.com/reviews/xiaomi-mi-a1 The phone is essentially exactly the same as their xiaomi Mi 5, except because its android-one it does not come with their apps (like the samsung browser etc), you can install any apps you want, but it just comes with the default google apps (chrome, maps, gmail etc) from that you can install whatever else you want firefox waze etc. and you have no wasted space with unable to remove manufacturers apps. I transferred / cloned my old phone without issue to the new one just followed the walkthrough when powering up. On previous phones (Iphone 4 + motorola motoG) I went through (smashed / fell appart / bits fell off) about 4 / 5 otterboxes. At least with this phone I'm not worried about a £400+ phone that I keep for 4 years and it costs me ~£100 / year.... I can afford to buy a new one every 18 months at ~£150 and still be at the same cost of a phone... I got mine from here, arrived DHL in about a week https://www.tobydeals.co.uk/en_GB/product/xiaomi-mi-a1-dual-sim-64gb-black-1.html looks like its gone up as I only paid £129.99
  7. robertspark

    Dual Sim phones

    I have one of these xiaomi with Android one, and very happy... No manufacturer carp apps Can use sim + Microsd card Or dual SIM Or with an adapter.... Dual SIM plus micro SD card. Think of it as exactly the same as the Google pixel which runs pure android exactly the same as this I have a protector for it... But at that cost I'm happy to buy another if it smashed it It's very similar to the Samsung i have for work, but way better. Bought it on AliExpress for a little less than i could get it as linked. They do a 32gb and 64gb one... I went with the 64gb as I wanted the space https://www.google.co.uk/search?client=ms-android-xiaomi-rev2&ei=3yk9W_CbFNLzkwWYj43oCQ&q=xiaomi+mi+a1+64gb+black&oq=xiaomi+mi+a1+64gb+bl&gs_l=mobile-gws-wiz-serp.1.0.0l3j0i22i30l2.11156.11895..12954...0....88.254.3......0....1.........0i71j0i67.2Sb8v1RO13M.
  8. robertspark

    Mig welder recomenditions (little different this time)

    There is the esab caddy 160i too... The difference from the 200 is the 200 is for aluminium too as semi synergenic The 160i is mild steel only and can be used with flux cored too. Also slightly lighter too and more portable https://www.esab.co.uk/gb/en/products/index.cfm?fuseaction=home.product&productCode=430955&tab=2 There is a datasheet PDF on the link page too
  9. robertspark

    Mig welder recomenditions (little different this time)

    http://www.esab.co.uk/gb/en/products/index.cfm?fuseaction=home.product&productCode=430956 A couple you tube clips showing portability. I have one a love it. Not used it gasless though, but perfect idiot proof welds everyone.
  10. Nice 3d printer Si, looks a bit like a kossel http://reprap.org/wiki/Kossel Almost got one before Christmas... yours looks way better. Uccnc has a nice plugin (autoleveler) which has some interesting possibilities for a few different applications or CNC type operations. I was trying to find the YouTube clip of machining letters on a sphere following probing, which may offer the ability to 3d print on a non trammed bed.
  11. http://forums.lr4x4.com/topic/100205-diy-cnc-plasma-laser-gcode-etc/ started other thread in case anyone has any questions / requires any assistance. Si, No not gone anywhere as I said in the other thread, I've had a few goes at it but not built anything. Primary hobby is suppose to be rebuilding the 90, but I've ended up an expert (yes hasbeen drip under pressure) by necessity at mach3, sheetcam, uccnc, and plasma cutters, THC, C, C# etc .... but still not got a 90 rebuilt..... Rob
  12. As suggested in the other thread, I'll try to start a new thread covering the miriad that is CNC and the little experiance I've gathered in the last few years with Mach3, smooth steppers, UC100 UC300 UC400 controllers and UCCNC, pendants whatever..... http://www.cncdrive.com/products.html If you have a look at the Mach3, sheetcam and CNCDrive (uccnc) forums you'll no doubt come across my handle.... I've been a little prolific over there learning everything I possibly can. To be fair I've probably been a little too prolific on the forums, given the whole reason for me being involved in CNC, plasma whatever is my main hobby..... rebuilding the 90...... I've had another spurt with the 90 and putting it back together but that is another story for another thread.... I keep chipping away at it though (swmbo is getting a little.... err naffed ... given we can't move house till its done!!! JFDI. I still have my plasma table (the one from the other thread of long ago that prompted Si to come up with his design), and it was used a lot.... less so of late, no reason other than trying to do gearbox marriage things). I have aquired a pneumatic scribe in the process, and a small 6040cnc router table for a bosch triming router for PCB's, and aluminium milling (but to be fair it's a little boarderline on ridgity for milling aluminium). Along with a 2.5W laser (for gaskets and paper templates..... quicker to cut a piece of paper to check sizes of plate before wasting good quality mild steel plate....) Oh yeah.... and a 4th axis for the plasma using one of these and a bracket to hold it to the frame along with a more powerful stepper motor https://ae01.alicdn.com/kf/UT8qqLMXCFaXXagOFbXI/Free-shipping-4-Jaw-100mm-chuck-font-b-CNC-b-font-font-b-4th-b-font.jpg complete with 4 jaw self centring chuck for SHS. I started of with Mach3, and to be fair it was good, but had a few niggles which are: 1) torch off delay (for plasma) which basically allows of overburn at the end of the cut and a divot 2) macro loops which only run at 10hz..... (10 x per second is fairly slow when you are cutting plate at 6000mm / min, that is a 10mm travel distance) These two clips decided it for me (plus my own experiance of Mach3 + Mach4 as I was into and still have licences for both .... plus two smooth steppers) https://www.youtube.com/watch?v=25FtHEo4Ujo Note the hand turning of the syncronised spindle motion (does require an encoder which are now very cheap to obtain.... mach3 can ontly use a single spindle pulse) https://www.youtube.com/watch?v=UJ8NM1MVFdM Anyone starting out now, please please get yourself a UC controller (make sure you get a genuine one, as there are a few chinese listed uc100's which look nothing like the grey uc100 and simply won't work for some fuctions + they cost the same if not more than an official uc100). I have no vested interest in CNCDrive (company responsible for making and developing UCCNC + the UC range of motion controller) but when you consider how fast they fix bugs, sort issues and add features when you comare to Artsoft (Mach3 + Mach4 developers) really there is no contest..... [note Mach3 is not and has not been developed since ~2011 as it is at the end of it's life] Mach4 is comming on, but for those with plasma, laser applications the hardware (motion contollers) are not available to offer M10/M11 + Torch Height Control Fucntionality. The UC controllers also offer a free Mach3 driver should you still wish to use mach 3, but you have to buy uccnc (which is much cheaper than Mach3, but I say again you muct buy their UC motion controllers for uccnc to work). Si asked about the THC (Torch Height Controller) I was looking at building..... well, I've had a Proma THC (please please please don't buy one they are carp!) and I've presently got a MiniTHC http://minithc.com/ which offers some good features (c-axis protocol)..... but it's not a Neuron THC http://neuroncnc.com/ which offers some good features too (nearly top notch). My THC idea has been visited a few times, but never completed, last time I looked at it was a few months back now as UCCNC offers some very good THC features (no delay for firing / stopping the torch), plus no delay for THC enable + disable macros and also you have additional no delay THC outputs to lock the torch if you use a Neuron which is fully external THC control other than settings being passed from UCCNC to the Neuron THC. I upgraded from the Powermax 350 to a Powermax 45 which will do everything I'll ever need (although the PMX45XP offers some good features I would have liked.... modbus!!!) Oh yeah, UCCNC offers Modbus TCP/ RTU and ASCII protocols ..... (Mach3 is TCP & RTU only) ... plus it is very much possible to programme any Modbus type stack which does not quite meet the requirements of Modbus .... such as the very common chinese 2kW inverters for spindle speed control. Plasma is not all about speed, it is actually all about acceleration and speed, but acceleration is by far much more inportant, given once the torch is set we normally have no way to control the torch current setting in these cheaper air plasma cutting machines. If anyone if looking to buy a plasma.... first, buy one with blowback start!! (any hypertherm and any machine that uses the S45 Trafirmit Torch http://www.trafimetusa.com/Products/Plasma Range/Trafimet Torches/Brochures/EA0590_0702.pdf [possibly the S65 too], lots of them do). Next on the list, buy an HF start machine, lastly ..... scratch start..... I know of only one person who has managed to get a scratch start machine to work on plasma with a circuit mod and can probably point you to the thread. You will also need some software to generate your gcode from CAD dxf drawings ..... Sheetcam is the way to go http://www.sheetcam.com/.... Les at Sheetcam (UK company) is very pro-active [suggestion.... buy your licences via lowcostcncretrofits ..... it will work out much cheaper .... they offer no support... you use the Sheetcam forum for that or RTFM.... http://www.lowcostcncretrofits.com/ Rob
  13. cnc / plasma / laser delay.... With Mach3, you use the dedicated laser input and there is no delay, M10 Px M11 Px (m11 turns the output on, and M10 turns it off .... think of the "0" and "1" as digital logic for on and off) The Px part is the output number, i.e. if you set Output 3 within Mach3 to control the laser (plasma) etc without delay, then use M11P3 (on), M10P1 (off) Now there is a catch..... you need to command a motion move because M11 + M10 requires motion in order for it to be triggered, so the next line of your gcode must have some motion, what I useto do was use a phantom axis "B", so I would write: M11P1 G0 B1 (rapid cnc motion of B axis to position "1") and M10P1 G1 B0 (rapid cnc motion of B axis to position "0") There is another catch........ if you are using a cheap motion controller (very specifically far eastern) then M10 + M11 probably won't be hard coded into the motion controller as they are not functions actually dependant upon Mach3 but upon the motion controller, the only way that they work directly within Mach3 is when you use the parrallel port. That being said, Simon use to use (long time since we chatted) the UC100, which is a very good motion controller (I use to use the smooth stepper with Mach3 + Mach4, but now have a UC300eth and a UC400eth which I use with UCCNC..... very much better!!! and designed for lasers and plasma cutters... I know I have been one of the people chasing the features to be added). Sheetcam is very good and you can write your own / modify the post processor to enable the M10Px and M11Px to be hard coded to the "pendown" function within the post processor. Few other things..... M10 and M11 are handed differently in UCCNC (they are the other way around, and P is the power intensity in % or bits 0-255), and if omitted just mean 100% as its a PWM signal that is output on the pin (ie M10 will mean 100% output, full on). There are a lot of very good features in uccnc but it will only work with a UC100, UC300usb / UC300eth or UC400eth controller. Rob

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