{"id":20,"date":"2015-05-09T15:55:00","date_gmt":"2015-05-09T14:55:00","guid":{"rendered":""},"modified":"2023-01-08T14:06:16","modified_gmt":"2023-01-08T14:06:16","slug":"collecting-electrical-parts","status":"publish","type":"post","link":"https:\/\/blog.hslracing.com\/co2laser\/2015\/05\/collecting-electrical-parts.html","title":{"rendered":"Collecting Electrical Parts"},"content":{"rendered":"

I have been collecting items for the electrical side of the build.<\/p>\n

The high voltage Laser PSU came with the Laser tube from France.<\/p>\n

An emergency stop mushroom from\u00a0ebay<\/a>\u00a0seller sunny-store6<\/a> for \u00a31.20 ($1.86) inc P&P.<\/p>\n

\"\"<\/a><\/div>\n

The 24V 15A PSU cost me \u00a316.03 ($24.85) inc P&P from ebay<\/a> seller 7colorstore<\/a>,<\/p>\n

\"\"<\/a><\/div>\n

This is their generic\u00a0ebay<\/a>\u00a0picture, but believe it or not it really did come with the edge bent as shown in the\u00a0picture!<\/p>\n

10 adjustable Buck voltage converter regulators for \u00a30.99 ($1.55) each from\u00a0ebay<\/a>\u00a0seller chesk_2013<\/a>.<\/p>\n

\"\"<\/a><\/div>\n

These can take an input voltage of 4.5-35V and provide an adjustable output voltage of 1.5-35V at 92% efficiency for a maximum current draw of 2A, or 3A with an additional heat sink.<\/p>\n

I will use these for dropping the 24V PSU to 9V for the Arduino<\/a> based control panel and the relays connected to it, which will be based on the one designed by Scott Schwarts<\/a>.<\/p>\n

The Stepper driver board I am using is a clone of the Protoneer V3.00<\/a>\u00a0board designed for use with grbl<\/a>\u00a0that cost me \u00a33.10 inc P&P from\u00a0ebay<\/a>\u00a0seller party-888<\/a>.<\/p>\n

\"\"<\/a><\/div>\n

It comes without any jumpers, but I have hundreds of these anyway, so no great loss here.<\/p>\n

The A4988<\/a> stepper drivers are from\u00a0ebay<\/a>\u00a0seller moncss<\/a>\u00a0and cost me $7.43 (\u00a34.82) for 5 (I bought 10), so less than \u00a31.00 each!<\/p>\n

\"\"<\/a><\/div>\n

The first set of Pololu<\/a> compatible stepper drivers I bought cost me $12.00 (\u00a37.75) each in November 2011, this just shows how the price of components are coming down.<\/p>\n

0.3-6l\/min flow meter from\u00a0ebay<\/a>\u00a0seller accecity-ca<\/a> for \u00a31.50 ($2.35) + \u00a30.52 ($0.80) P&P.<\/p>\n

\"\"<\/a><\/div>\n

I have also ordered an AWC708C Lite DSP from AliExpress<\/a> seller SanWeiHouse<\/a> for $283.10 (\u00a3192.04 after exchange commission) with free shipping to the UK.<\/p>\n

\"\"<\/a><\/div>\n

I paid via paypal<\/a>, even though this is not an official payment method for\u00a0AliExpress<\/a>, however it will give me a level of buyer protection that their other payment methods will not.<\/p>\n

I have yet to see how much customs hit me for when the DSP arrives.<\/p>\n

Fortunately I will be able to claim back the VAT part, as I have a VAT registered company, however, I will still have to pay the duty and handling charges.<\/p>\n

At a guess, duty will be charged at around 2.5% on the declared value of goods + shipping, then VAT charged at 20% on all of this. So \u00a3192.04 x 2.5% = \u00a34.80 duty, then \u00a3196.84 x 20% = \u00a339.37 VAT, and then a \u00a310.00 handling charge, for a grand total of around \u00a3245.00 (or \u00a3206.84 ex VAT).<\/p>\n

This is significantly cheaper than paying $425.00 (\u00a3274.20) + $70.00 (\u00a345.10) international P&P for effectively the same controller from Lightobject<\/a>.<\/p>\n

I would still have to pay duty (\u00a37.98), VAT (\u00a365.45) and the handling charge (\u00a310.00), which would bring the total cost to \u00a3402.74 (or \u00a3337.28 ex VAT).<\/p>\n

Even buying the DSP from\u00a0Lightobject<\/a>\u00a0whilst on vacation in the USA, I would still have to pay $20-30.00 (\u00a313-20.00) shipping, to then bring it back in my luggage, it would still cost me around \u00a3305.00.<\/p>\n

Either way I save \u00a3100-130.00 ($155-200.00) by buying from China.<\/p>\n

I am not interested in the modifications that have been made to the\u00a0Lightobject<\/a>\u00a0version of this DSP for the American market, as I do not live in the USA and am only interested in metric measurements.<\/p>\n

You can download all the latest firmware, manuals, Lasercad, etc from the downloads section of the Sinjoe<\/a>\u00a0listing for this controller.<\/p>\n

I will no doubt still be buying my mirror mounts<\/a> and laser focus mounts<\/a> from\u00a0Lightobject<\/a>, as I have yet to find anyone else who stocks these specific items. All the\u00a0ebay<\/a>\u00a0and\u00a0AliExpress<\/a>\u00a0sellers only stock the ‘Pro’ mounts which are too big for my laser build.<\/p>\n","protected":false},"excerpt":{"rendered":"

I have been collecting items for the electrical side of the build. The high voltage Laser PSU came with the Laser tube from France. An emergency stop mushroom from\u00a0ebay\u00a0seller sunny-store6 for \u00a31.20 ($1.86) inc P&P. The 24V 15A PSU cost me \u00a316.03 ($24.85) inc P&P from ebay seller 7colorstore, This is their generic\u00a0ebay\u00a0picture, but believe…<\/p>\n","protected":false},"author":1,"featured_media":175,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-20","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorised"],"_links":{"self":[{"href":"https:\/\/blog.hslracing.com\/co2laser\/wp-json\/wp\/v2\/posts\/20","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.hslracing.com\/co2laser\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.hslracing.com\/co2laser\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.hslracing.com\/co2laser\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.hslracing.com\/co2laser\/wp-json\/wp\/v2\/comments?post=20"}],"version-history":[{"count":3,"href":"https:\/\/blog.hslracing.com\/co2laser\/wp-json\/wp\/v2\/posts\/20\/revisions"}],"predecessor-version":[{"id":265,"href":"https:\/\/blog.hslracing.com\/co2laser\/wp-json\/wp\/v2\/posts\/20\/revisions\/265"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.hslracing.com\/co2laser\/wp-json\/wp\/v2\/media\/175"}],"wp:attachment":[{"href":"https:\/\/blog.hslracing.com\/co2laser\/wp-json\/wp\/v2\/media?parent=20"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.hslracing.com\/co2laser\/wp-json\/wp\/v2\/categories?post=20"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.hslracing.com\/co2laser\/wp-json\/wp\/v2\/tags?post=20"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}