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Machine Builder Project Toolkit

Five Excel workbooks for small machine builders and workshops, written by a mechanical design engineer.

  • BOM cost roll-up and machine quote calculator
  • RFQ and purchase-order tracker
  • FAT/SAT and design review checklists
£29 one-off · 5 workbooks
Buy the toolkit
What is inside

Five workbooks for quoting, buying and testing a machine

Yellow cells are inputs; everything else calculates. Works in Excel and in Google Sheets.

XLSX
01

BOM Cost Roll-up

150 BOM lines, scrap allowance, cost by category, markup and longest lead time.

XLSX
02

RFQ and PO Tracker

200 lines, status list, overdue highlighting, open RFQs and value on order.

XLSX
03

Machine Quote Calculator

Labour, materials, contingency, margin-based price and payment milestones.

XLSX
04

FAT and SAT Checklists

Factory and site acceptance test sheets with pass/fail counting.

XLSX
05

Design Review Checklist

Gate review questions and an action log.

Who it is for

Small builders and workshops

  • Machine builders that run projects in spreadsheets
  • Engineers who quote, buy parts and run acceptance tests
  • Teams that want one consistent format across projects
What it is not

Straight answers

  • Examples to adapt, not a substitute for your engineering judgement.
  • Check the numbers before you send a quote.

If a file does not work, we fix it or refund you

Email kits@proxom.co.uk within 30 days if a file will not open or is broken. We will send a working file or refund the payment. See the Terms.

The workbooks are tested for formula errors. Also see the Machinery Regulation 2023/1230 kit.